The Hytera Radios are starting to take some of the digital market from Motorola, what makes them so good?

The PD782, PD785 and PD702 Hytera radios are affordable, as well as being easy to use and providing high quality audio. This is a good combination when it comes to two-way radios, a technology that, by definition, needs to be durable, easily replaceable and effortlessly useable in case of emergency.

The parent company, Hytera, have been operating since 1993 and in that time they have developed a strong reputation as an industry leader. In short, they are in the process of cultivating a trusted international brand. Hytera are an emerging brand with a considerable track record for producing quality technology at premium prices.

Another likely source of Hytera’s recent success is the effectiveness of the Hytera earpiece. The Hytera multi-pin earpiece is designed for use with the PD702 and PD782 radio models. It features excellent playback, as well as being solid and durable. This Hytera earpiece is available for around £25.00 and is a professional level model, proving highly effective for many modern surveillance exercises.

Returning to the two-way radio discussion, Hytera radios include a number of advanced features, including a robust design, as well as a full colour LCD display, something that is a rarity in today’s market. There are also a high number of messaging options.

The PD785 is IP57 rated. This means that it can even be completely submerged for up to 30 minutes without obtaining any significant damage. It can also switch between analogue and digital mode and features full digital encryption.

Hytera have received a boost in sales because they have created a series of products that are up-to-date, hardwearing and professional. Two-way radios need to be reliable as a matter of fact, which is why these products are selling so well.

New Sighting Suggests That Extinct Tasmanian Tigers May Yet Live

The Thylacine, an odd, chimera-esque carnivore native to Tasmania, was officially declared extinct in 1986. By that time, no one had seen a live one in 40 years, so it seemed reasonable enough to conclude that a virulent, century-long concoction of wholly barbarous (yet officially sanctioned) hunting methods, disease, deforestation and competition from other predators had wiped the creature from the face of the earth.

However, that may not actually be the case, as recent sightings, including one reported in January of this year, seem to attest.

So convincing are such regular sightings to scientists, cryptozoologists and other interested parties, that a new expedition was launched at around the same time, with the hope of finally capturing proof of the animals long-rumoured survival.

An elusive predator last seen alive in the mid 1930’s, the thylacine, colloquially known as the Tasmanian tiger, has captured the hearts, minds and imaginations of conservationists, explorers, cryptozoologists and, just possibly, a handful of lucky eyewitnesses, for three successive generations.

Dog-like in both size and form, but with an oddly angular head, an enormous gape and chocolate brown stripes running across its tail and back, the thylacine was Tasmania’s apex predator. It was the marsupial equivalent of a wolf, or wild dog (an example of what biologists call convergent evolution) and it existed in Australia and Tasmania for around 23 million years.

The last officially recognised wild Thylacine was shot and killed by a farmer named Wilf Batty in 1930. Six years later, Benjamin, the last captive specimen kept in Hobart zoo, died from a cruel combination of neglect and exposure.

Derided as a pest and a sheep stealer, the extermination of these beautiful, shy and enigmatic twilight hunters was seen, at the time, as a positive step towards the taming of the Tasmanian wilderness.

However, by the time the creature’s numbers had almost completely diminished (if not actually expired entirely), it had become the first poster-child for conservation, an idea practically unheard of before the early 20th century. The Tasmanian tiger was even among was the first animals to be classified as an endangered species.

Concordantly, there is a suggestion that a collection of individuals were shipped over to the Australian mainland and secretly released into the wild there, as an act of conservation.

However, despite the aforementioned declaration of the thylacine’s extinction, evidence occasionally comes to light which suggests that rumours of the Tasmanian tiger’s death may be somewhat exaggerated.

In South Australia, 1973, a very compelling piece of footage was taken on 8mm film stock. The footage appears to show a thylacine running across a rural campsite. The gait and running style are entirely unlike a dog or dingo’s and the animal’s lithe, slender form and bony, tapering tail, potentially offer us a tantalising glimpse of a creature that just may have survived extinction.

In 1985, yet more photographic evidence was offered, this time by Australian Aboriginal tracker Kevin Cameron, who photographed what appears to be a thylacine digging in the ground behind a rock.

In 1982, Parks and Wildlife Service researcher Hans Naarding was gifted with an opportunity to observe a thylacine up close for several minutes, even going as far as to count the stripes across its back (12, in case you wondered). A similar account, also filed by a Parks and Wildlife Service employee, emerged in 1995.

Eyewitness accounts of the creature are both numerous and, for the most part, highly consistent. Although some reports are obviously mistaken accounts of dogs afflicted with mange, or even foxes, others still are surprisingly credible.

The most recent sighting of this incredibly rare creature occurred in January of 2014. It was reported to the Thylacine Research Unit (T.R.U), via the organization’s official website.

The eyewitness, named as Jeremy by the site, revealed that he had seen a 40-50CM tall creature that was about the same length as a small dog (defined as 1metre), whilst out walking in the Landsborough area of Queensland, Australia, not far from the Dularcha National Park. According to Jeremy, the creature had light, sandy coloured skin and faint stripes across its back and tail.

Jeremy says, “As I watched it from the side angle, I saw its head appear and thought, oh its a wallaby, but as it emerged I saw it was on four legs, so thought it was a wild dog. But as it went away into the next thick bush, I noticed light coloured stripes at the rear near its tail”.

Once the animal had retreated into a more heavily forested area, Jeremy decided to “let it be” and tell his friends about what he’d witnessed. Apparently, Jeremy’s girlfriend later revealed that she had also seen the creature in the area.

Emphatic that neither of them had seen a dog, or a dingo, Jeremy searched exhaustively online for any kind of striped, dog-like marsupial, but came up empty handed. There was only one logical conclusion.

Proponents of the thylacine’s continued survival often argue that sightings are increasing because the animal’s population may be enjoying a recovery. It has been estimated that if a breeding population of tigers did survive the 1930’s extinction, that it would take them a reasonably long time to return to sufficient numbers. If that is indeed the case, then 70+ years ought to do nicely.

Hopefully, it should now start to get easier to spot, and conclusively document, a living, breathing 21st century thylacine.

TURTLE BEACH ELITE 800 REVIEW

Turtle Beach’s Elite 800 wireless headset for PlayStation 4 screams “flagship.” It’s a gorgeous piece of kit, all shiny black with lush earpads and rounded edges. Set the free-standing headset on its charge base, which doubles as the wireless transmitter, and it’s an eye-catching addition to an entertainment center. Pop ‘em on your head, and the feeling of quality carries over. Save for a handful of notable flaws, this is perhaps the best headset that Turtle Beach has ever produced.

We’ll start with the form factor. The Elite 800 feels solid from the moment that you first pick it up. It’s not so heavy that it’s uncomfortable resting on your head, but nothing about it feels flimsy or poorly put together. The thick plastic is also adorned with flourishes of metal and blue plastic, and the thick earcup padding looks eminently comfortable even from a distance. There isn’t even a visible mic jutting out from the thing, though there are actually two — they’re invisible, built directly into the unit.

If you wanted to describe the headset in one word, that word would be “sleek.”

The stylish design sensibilities carry over to the charging base as well. The oval-shaped unit is topped by two small depressions, one of which is fitted with magnets and charging contacts. In charge mode, the headset sits upright, with each earcup slotting into its own shallow well.

The magnets do a good enough job of sliding the contacts into place, but it’s relatively easy to set the headset down in the charging bay incorrectly. Improper placement prevents the Elite 800 from charging, so it’s important to be careful when setting it into the cradle. One handy tip that Turtle Beach’s documentation doesn’t mention: If you hear the headset’s power cycle on, then off, after you set it down, you know it’s charging.

TurtleBeach Elite 800 review hinge macro

The base station connects to a PlayStation 4 (it also works with PlayStation 3, and with mobile devices using Bluetooth) via a USB cord, for power, and an optical audio cable, both of which are included. The optical audio is expected, but the fact that the base station/transmitter draws power from the console isn’t ideal.

The PS4 has only two USB ports located on the front of the machine, and one of them always has to be occupied if you’re using an Elite 800. Couple that with the fact that the PS4’s DualShock 4 controller already doesn’t have the best battery life, and you can see where problems might start to crop up.

That’s not the only problem with the base station, however. The PS4 doesn’t provide a charge to the transmitter when the console is completely powered down. Sony does offer a “Rest Mode” that continues to send a charge through connected cables, but it’s all too easy to shut the whole thing off and stop charging the headset. It’s possible to wire the Elite 800 directly into another power source, such as a computer, but this problem could just as easily have been solved by including a wall plug power adapter for the unit. As is, you’ll probably want to go grab one for yourself.

Power is also sometimes a problem with the headset itself. Turtle Beach promises 10 hours of life on a full charge, but that number comes down when features like Active Noise Cancelling are used. If you’re prone to participate in marathon gaming sessions, it might be a good idea to keep a backup pair of headphones handy. The headset also does a terrible job of communicating when low on battery power; instead of simply shutting down, the audio starts to crackle and fade in/out, giving the impression that there’s signal interference.

Despite these issues, the Elite 800 makes a strong case for itself in the realm of overall performance. It’s comfortable to wear thanks to the thick, padded earcups and additional padding up top. The material is surprisingly breathable, keeping ear sweats at bay, but discomfort sometimes crops up during especially lengthy sessions thanks to a snug fit that presses the inside of the headphones against the tips of your ears.

In terms of sound, the Elite 800 delivers dynamite performance. Positional audio, enabled by DTS Headphone:X 7.1 virtual surround technology, is among the best we’ve heard in a two-driver headset. It’s easy to pick up on an audio source by both location and distance, even when you’ve got heavily layered audio blasting through the headphones. For multiplayer games like Destiny or Call of Duty: Advanced Warfare, there’s a definite advantage in being able to tell where potential threats are coming from.

TurtleBeach Elite 800 review controls

The Elite 800 also has a multitude of settings to fiddle with. The earcups and snug fit go a long way toward providing passive noise cancellation, but there’s also an Active Noise Cancellation mode and a range of mic monitor settings for different environments. Active Noise Cancellation definitely isn’t for everyone, but it’s handy – as is the variable mic monitor – in all different types of playing spaces.

As usual, Turtle Beach’s own “Signature Sound” setting provides the best overall virtual surround experience. There are four categories of EQ settings, for Games, Movies, Music, and Stereo, and multiple tuning options in each, with more available to program into the headset using a Windows-connected Elite 800 and the Ear Force Audio Hub app.

It’s a lot like the company’s Xbox One-friendly flagship, the 500x, but with a very important difference. The Xbox cans communicate which setting is active using high/low beeps that practically require the user to have a cheat sheet on hand. The Elite 800 addresses this problem, using a pre-recorded voice that communicates settings changes as you make them.

While it’s very handy, cycling through the headset’s various settings can also be a pain. Everything from EQ settings to power to mic monitor to Bluetooth on/off (the Elite 800 can pair with mobile devices) is managed using four-way touchpads on both the right and left earcups. It’s convenient, but the controls are also extremely sensitive, to the point that an errant brush along the side of your head can too easily change things up.

Overall, the Elite 800 is one of the best headset solutions available for PlayStation 4. The build quality, the audio quality, and the added features – particularly Bluetooth pairing (take calls while you game!) and membership to Turtle Beach’s Elite program (mainly for the two-year warranty) – amount to a superb package overall. It’s not without its shortcomings, but in the inconsistent market of wireless headsets for next-gen consoles, the Elite 800 is a standout option. For a premium price, of course.

Highs

  • Fantastic, powerful sound
  • Stylish design
  • Lots of handy features
  • Extremely comfortable to wear

Lows

  • That quality comes at a premium price
  • Charging issues if you use power save with your PS4
  • Headset-mounted controls are less than ideal

Read more: http://www.digitaltrends.com/headphone-reviews/turtle-beach-elite-800-review/#ixzz3Qb7dL1Nz

Who invented the walkie talkie?

The original inventor of that walkie-talkie is actually the focus of some disputes. A similar 3 names come up again and again, but how many of those names deserves the foremost credit? I’ve to confess, I had a tough time deciding.

The first name to emerge is Canadian inventor Donald L. Hings. Reported by his blog,

“The “walkie-talkie” is Don Hings’ most well-known invention. The earliest versions of this device were designed as portable field radios for the bush pilots of Consolidated Mining and Smelting (now Cominco), who had to fly their planes between remote sites in the far north of Canada. The first true walkie-talkie was built by Hings in 1937, but it was not called a walkie-talkie at the time. In Hings’ notes, it was simply a two-way field radio. They were also called wireless sets, or “pack sets”. The term “walkie-talkie” (sometimes “talkie-walkie”) was coined by journalists reporting on these new inventions during the war”.

The site maintains (fittingly, I think) that walkie-talkies were not particularly recognized until the occurrence of the 2nd World War in 1939.

An additional name which is frequently mentioned is United states inventor Al Gross. Gross seemingly patented the term ‘walkie talkie’ in 1938, after which, the term was actually used by the media as a ‘catch all’ name for just about any/all lightweight 2 way radios. Undoubtedly, Gross worked on the technology and was instrumental in its plan, but did he devise the walkie-talkie? Lemelson-MIT appears to think so, as their blog says of Gross:

“The pioneer nonpareil of wireless telecommunications is Al Gross. In 1938, he invented the walkie-talkie. In 1948, he pioneered Citizens’ Band (CB) radio. In 1949, he invented the telephone pager. His other inventions include the basics of cordless and cellular telephony. (…) Determined to exploit the unexplored frequencies above 100 MHz, Gross set about inventing a mobile, lightweight, hand-held two-way radio. In two years, Gross had invented and patented the “walkie-talkie” (1938)”.

If Hings invented the walkie talkie back in 1937, then that signifies that Gross basically re-invented the identical device in 1938. If that is undeniably true, then certainly Hings is the chap most responsible, right?

Well, before you make your minds up, let Wiki Replies present some more names; their account of that walkie-talkie’s creation states that,

“The first radio receiver/transmitter to be nicknamed “Walkie-Talkie” was the backpacked Motorola SCR-300, created by an engineering team in 1940 at the Galvin Manufacturing Company (forerunner of Motorola). The team consisted of Dan Noble, who conceived of the design using FM technology, Henryk Magnuski who was the principal RF engineer, Bill Vogel, Lloyd Morris, and Marion Bond”. 

This Motorola team, headed up by Dan Noble, actually made the walkie-talkie in 1940, a full three years after Hings allegedly created it and 2 years after Gross apparently patented it. Ugh. This is giving me a headache!

So, perhaps we can clear this up a little now. The name ‘walkie-talkie’ was commonly applied to WW2-era Motorola radio, which led to Dan Noble’s staff being accredited with its creation. That is true, Noble and co DID create that particular model, however the technology itself had clearly existed before.

Now, Hings’ model was noticeably more portable, and pretty different to the Motorola model. Hings named his invention a ‘packset’ so it was consequently entirely probable for Gross to have patented the same invention (under the term ‘walkie-talkie’) in 1938 and for that name to migrate over to the Motorola adaptation, via the wartime press (1939 – 1945 was not a well-known era of journalistic accuracy, lest we forget).

Reported by Wikipedia, Hings’ model did not get used by the forces until 1942, the results of which would be Don Noble and co being credited with the invention, with Hings being relegated to the spot of just another engineer (Hings was employed by the allies during WW2) who was working on armed forces gear.

Largely, I’d say that Hings is likely the likeliest inventor of the initial technology and definitely of the portable system we understand today. Still, with so many talented inventors functioning at around the same time, this indicates as possible to claim Gross as inventor of the walkie-talkie as well. Hings pioneered it, Gross patented it and Noble’s team brought it into mass manufacture and normal usage. There. Simple, right?

How to Use a Walkie Talkie Headset

The basic functioning of walkie talkie headsets or two way radios is similar to standard radios. They receive RW or radio waves over the air. Once radios have received the radio waves, they convert it into sound. However, two way radios also convert sound to radio waves and transmit it back to another receiver. In simple words, these special types of radios can receive and transmit a radio signal simultaneously. Moreover, such radios use two different radio frequencies. This ensures that they can receive and send signals at the same time.

Most of the two way radios in modern times also allow scanning. Through scanning, a user can easily check if anyone is sending a transmission on a particular frequency. If the radio which is being used detects a private line tone, it will stop scanning and lock on that particular channel. This will allow the user to speak and transmit on the same frequency. As mentioned earlier, modern radios allow a person to use multiple channels. However, a walkie talkie headset should be able to generate and transmit radio waves in many different frequencies. All the frequencies should have minute fluctuations with each other.

Applications Uses of Walkie Talkie Headsets

These special type of radios have always been in demand even with all the mobile phones and laptops. Such radios facilitate easy accessibility and instant communication. Moreover, you can communicate with a bunch of people at the same time. With such a radio, you don’t have to call everyone individually and spend a lot of your hard-earned money.

These radios can be used for many different purposes. They are often used in public safety, recreation camps, military training and other businesses. Moreover, they can also be used as toys for children. Two way radios come in many different designs at affordable prices.

These type of radios can also be used in the medical industry. They can be quite useful in admitting patients or attending to people in emergency waiting areas. They also come in handy with outpatient clinics, pharmacies, and surgeries. Such radios can also be used in food industry. They can be used by waiters, kitchen staff and delivery staff in restaurants and so on.

Every person finds it easy to use these radios. Moreover, they are not as complex or difficult to use as mobile phones and other such communication devices. A walkie talkie headset is always the best option to communicate at work, play or home. Such radios can be used in many different situations. Even the most popular communication devices can not challenge the ease of use associated with such radios.

Here Are More AM Suggestion

This can be found over on this internet site, please enjoy

I thought you should know that the FCC has just licensed a digital TV station with an ancillary service in the form of an analog FM radio station. This new service can create thousands of powerful FM radio stations, which can be leased to current AM radio stations now struggling with broadcast difficulties.

Recent studies have shown that the 0.62 MHz now unused by DTV stations can be efficiently employed for other services, with no interference to or from either the DTV reception or, for example, FM radio reception. No new spectrum, or change in current spectrum use, is required. FM receivers, which can receive all VHF and UHF TV stations’ analog audio, were readily available since the 1980s from many manufacturers, and could easily be again.

The first DTV station licensed to broadcast this added analog FM is W26DC-D in New York. No interference of any kind has been observed. It uses the upper 200 kHz of the digital channel for monaural analog FM, and is well received by the older FM radios mentioned above. (Stereo FM analog, and digital radio, could also be broadcast.)

The FCC had previously shown concern that this added ancillary service might adversely affect new cochannels, but this has been disproved for the specific conditions employed.

This extended use of DTV spectrum could solve the problems of current AM radio stations by allowing them all to migrate to this new FM band, with no need to disturb any existing service. All that is needed is an FM transmitter output injected into the antenna line of a full- or low-power digital television station.

I hope advantage can be taken by the radio and television industry of this novel spectrum use.

Richard D. Bogner

Retired, Former President and Owner

Island Broadcasting Co.

Roslyn, N.Y.

ENFORCE THE RULES

As a major player in the world of AM radio and as one who is vested deeply, I am continually amazed at people who are not invested trying to tell us how to live.

AM radio in itself needs no improvement!! It works just fine. The problem is simple: The FCC has dropped the ball and fails to recognize the problem is the environment surrounding it. It is man-made interference that has caused the problem, and if the commission had enforced the incidental radiation rules, we would not be compromised as we are today.

All these hearings and meetings always attack the AM spectrum itself. It is just plain wrong! Enforce the rules and make sure radio manufacturers build good radios.

I listen to AM with my Icom Ham Radio with its digital noise blanker and love every moment of it.

Tom King’s article (“King Lays Out ‘Critical Steps’”) in the Sept. 24 Radio World was right on — except for C-Quam, which was a disaster.

Just because the inventor of the best stereo for AM was a eccentric old man and didn’t have a ton of money to spread around in the propaganda war The Commission selected C Quam. They said it was in the public interest… The Washington bureaucrats wouldn’t know public interest if it hit them in the backside. Face it — AM broadcasters, we have been screwed by the government. Maybe if some of these high-test consultants would get their heads out of their backsides we could salvage AM.

God bless you, Mr. King, but the Kahn system rules.

Ed De La Hunt

Owner

De La Hunt Broadcasting

Kelliher, Minn.

LATE TO THE PARTY

The problem with NextRadio and iHeartRadio (“Coleman Says Demand ‘Strong’ for NextRadio,” radioworld.com, Aug. 1) is that they are a few years too late to the party.

All of the college kids I know (and I work for a college radio station) use the free app from TuneIn Radio.     If you’re not on represented on TuneIn, you’re not really streaming anyway.

Students don’t like to have a separate app for every station they listen to. That just causes clutter on their device … and TuneIn even has some AM stations represented.

Bart Jones

Chief Engineer

KFKX(FM)

Hastings College

Hastings, Neb.

http://www.radioworld.com/article/here-are-more-am-suggestions/273542

Do 2 Way Radios Work on Cruise Ships?

Yes, two way radios DO work on cruise ships. However, because the same channels tend to be a bit overused, passengers can expect a fair amount of chatter and signal interference when using their radios.

I suppose the two way radios/walkie talkies would be the best option. But, how important is being in constant communication with the rest of your family anyway? A ship, while large, isn’t huge. If you know the general area where people will be, you could walk over and find them. Preset arranged meeting times and places would work as well. People were able to get along fairly well without being able to directly communicate with each other at every moment of the day

So, aside from the option of setting pre-arranged meeting times, a 2 way radio isn’t a terrible idea, especially if you have kids. Many people reading this might simply ask why they can’t use their mobile phones. That is a very good question, after all…

If you’re going on a cruise this summer (or anytime, really), you need to be aware that your mobile phone is going to cause some problems.

Many cruise passengers are unaware and/or totally ill prepared for this fact and the cruise companies themselves are at least partly to blame for the lack of information in this area. So, will your mobile phone work at sea?

The answer is most often always “You can subscribe to our cruise line cell phone network.” What they won’t tell you is the rates you will be paying. You certainly won’t be able to find them online, and to get a proper answer, you’ll have to call the cruise line to get a full break down of what they charge for access to their cell networks. As a company that sets their own international calling rates for the Talk Abroad SIM Card, we can see the cruise ship networks in our list, and it does not look good. If you subscribe to their network, you’ll be paying anything from $4 ~ $8 per minute, depending on your location and who you are calling. Don’t forget also that they’ll be charging you for receiving inbound calls

As we’ll soon see, taking a mobile phone on a cruise can represent a logistical nightmare. At the same time, however, many of us feel naked without a phone?

More problems are presented in the form of scheduled stops (although these can also represent opportunities for a higher – and cheaper – level of connectivity).

If the ship is close to the coastline, and has multiple port of call stops, you’ll typically be able to get a terrestrial signal from the nearest land cell phone tower – up to a mile from the coast. It’s highly unlikely that you will be connected with 3G speed signals, as evidenced in my previous blog, you will need to have a low-wave 3G frequency like 800 or 900 Mhz – frequencies not typically associated with phones manufactured for North American consumers. So what can be done? You can rent an international cell phone that works in port, and a short way out to sea. If you really must stay connected on your boat, get in touch with your cruise travel agency and request information about the on-board cell phone rates and subscription fees

So, using mobile phones on a cruise is both difficult and supremely costly, but arranging a meeting time is also likely to cause more than a few headaches. two way radios have their problems, but may in fact be the best way to keep in contact, depending, of course, on how important a factor this is for you.

The size of modern cruise ships are such that they are usually measured against small cities, this means that communications are even more important than before. Experts in two way radio communication are 2wayradionline.co.uk

Where Are Sepura Radios Used?

For people who are curious where Sepura radios are used, then this article is for you. Sepura is a highly respected company that designs, manufactures and sells radio technology. However, the company is known for providing accessories, like a Sepura radio earpiece to radio networks. The company has gained a reputation to supply radios that are highly secure, feature-rich and durable. In fact, with these so many features, the only real question is – in which situations do Sepura radio are not suitable? The answer is – hardly. Nevertheless, this article is going to enumerate a few popular uses for Sepura radios.

Public Safety

One of the most common uses for Sepura radios is in the field of public safety. There are plenty of reasons for this, but the most compelling one is because of the Sepura’s mobile gateway technology. Because of such technology, officers in public safety will be able to communicate with each other no matter the location, even for “dead spots. Sepura radio also comes with a one-of-a-kind noise suppression technology. It’s so good at it that even with wailing sirens, you can still hear crystal clear audio. However, if you really want to block-out all the background noises, then Sepura radio earpiece can help you with that.

Seupra also provides radio technologies that are all designed to streamline and increase the functionality of the communications like allowing real-time information sharing with emergency services, the control room and colleagues; also, Sepura provides apps that make using the technology easier. The ability of Sepura radios to withstand a heavy beating makes them very ideal for tough and disaster scenarios. Lastly Sepura radios come with a Man-Down feature, which provides critical help for any officers that might need backup or assistance.

Oil And Gas

Another popular use for Sepura radios is in oil and gas industries, especially offshore installations. These kinds of work environments are considered as “high risk”, thus worker safety of utmost importance. Therefore, accurate and clear communication is crucial for the safety of all the workers. Sepura radios offer the one of the best radio communications and technologies to provide that another safety layer.

The notable safety features are the Lone Worker and Man-Down. These features are especially designed to ensure safety of the workers and provide immediate help if the situation arises. The radios and accessories are designed in a way so that it can be easily operated even if the user is wearing thick gloves. Sepura radios also feature real-time information authorization access to different areas. This helps protect assets and ensure information security. Also, Sepura radios come with an app specially designed for oil and gas environments as it helps in reducing incidents, liability exposure, promoting safety and full audit-trail.

Sepura is a company that designs, manufactures and sells radio and radio based-technologies from handheld devices, networks to accessories, like the Sepura radio earpiece. Because of the many features, their radios are extensively used in different locations, industries and agencies. The company has put a lot of effort to put features that ensure safety and clear communications, thus it has earned a place in public safety and oil and gas industries.

What Is Audio Surveillance?

I do not know how you came here as you read it on social media, twitter, facebook, google +, stumble upon or somewhere else. But thank you for coming and I trust you enjoy reading this as much as I did.

Audio surveillance is the act of listening to third-party conversations and recording them. This technique is frequently used by law enforcement, private detectives and government spy agencies. Most audio surveillance consists of either bugging a room, wearing a wire, tapping a phone or distance listening. Each provides distinct advantages and disadvantages, depending on the situation.

audio surveillanceWiretapping is one of the most common and simple form of audio surveillance. This is preferred because it is highly inconspicuous and allows for two sides of a conversation to be clearly recorded. Small audio devices, commonly called bugs, are attached to the internal circuitry of a telephone to pick up a conversation. A signal is wirelessly transmitted to another device that records the conversation. The drawback of this method is getting access to a subject’s telephone to properly wiretap it.

A room microphone is another audio surveillance technique that often is utilized. This involves planting a wireless microphone in a room to pick up conversations. Disguised room microphones are available to look like pens, clocks, stuffed animals and a variety of other covert forms. This microphone sends a signal to a receiver, just like a wiretap does, and the signal can be directly recorded. The disadvantage here is access to some rooms and getting only one side of a phone conversation if it takes place in that room.

Concealable transmitters known as body wires are well-known devices that have been featured in many television shows and movies. A small microphone and transmitting device are worn under the clothes of a person in order to send a signal back to a receiver and record a conversation. This allows the person wearing the wire to ask questions and get specific details that simply listening to other people’s conversations could not provide. The disadvantage of this method is getting access to the person needed to be recorded and also concealing the microphone in a way that hides it but allows for clear recording.

Long-distance microphones are another covert means of audio surveillance. A parabolic microphone, often called a shotgun microphone because of its long shape, has a powerful ability to pick up conversations up to 300 feet (91.4 m) away. Its main disadvantage is its high sensitivity. It can pick up other noises and cannot function if obstructions, such as trees and automobiles, are between the microphone and the conversation.

Police Earpieces

There are a wide variety of Police Earpieces on the market, whether you need an Overt or Covert police Earpiece, listen only or with Push To Talk (PTT) and Microphone, whether you want in ear or headset, D Shape, G Shape or Acoustic and choice is to be honest 100% personal preference! What I will do today is run over the basic pro’s and con’s of each type of police earpiece and their normal uses but ultimately you have to try a few different types and find what works for you.

With covert ear pieces you have a couple of options a wireless in ear receiver and hidden mic that runs to a minimum of £200 and probably more like £500 or the more common acoustic earpiece with clear coiled tube which will set you back anywhere between £12 and £20.  The clear tube runs out of the back of the wearers shirt collar and loops over the top of the ear and into the ear canal.  There are two options then for fitting the tube into the ear canal, either the standard “Mushroom Tip” which blocks the whole ear canal of the “Gel Earpiece Insert” that fits into the ear well to hold it in place and then a smaller tube runs into the ear canal allowing both clear transmission of comms without the earpiece completely cutting off ambient local sounds.  Acoustic Covert earpieces can have a 3 wire PTT and Mic allowing the mic to be lapel mounted or hidden in a sleeve or listen only.

G Shape police ear pieces fit like an inverted G made of black plastic or rubber, hooked over the top of the ear with the earpiece speaker coming down to the opening of the ear canal (some ear pieces have it swivel mounted others don’t).  General consensus is that the G shape earpiece is the most comfortable for the most users.

D Shape Police Earpieces (surprisingly enough) are black plastic or rubber D Shapes with the curve hooking round the back of the ear and the straight part running down the centre of the ear with the speaker mounted in the middle to align with the ear opening.  These do not fit as close to the ear as a G Shape earpiece and people with bigger ears may tend to find they flap about like Dumbo when running!!

Both D and G Shape earpieces are available in PTT and Mic or listen only and will normally set you back anywhere between £10 and £20.

Earpieceonline has the most common police radio earpieces are for Motorola MTH800 and CP040 Series, Sepura SRP 2000 series and a few models of Kenwood.

What are the different types of earpiece?

An earpiece allows Security Professionals to communicate in a covert manner without anyone noticing. Earpieces are important to allow communication between the wearer and his/ her team discreetly. There are many earpiece models and makes that a security agent can wear but typically, earpieces are of two major categories i.e. wireless and wired. Within these two categories, there are varying versions and models available. Several factors affect the choice of the ideal earpiece, these factors include:

• Discreetness- Security officials can chose an earpiece based on how discrete they want to be. The level of discreetness is determined by the earpiece style and colour of the coiled tube. In-the ear earpieces are obviously discreet because they are worn inside the ear than over-the ear earpiece- with the wires and all. You can choose a colourless earpiece as opposed to a coloured one for more secrecy or choose a wired earpiece altogether for total secrecy.

• Comfort- You obviously want the earpiece you chose to be comfortable to wear. Choose an earpiece that fits well and that is made with hypo allergic materials. Some of the important questions to ask before choosing an earpiece include how easy the earpiece is to wear and remove, how easy is to use and control the device, can the earpiece remain intact as long as necessary without falling off.

• Versatility- The right earpiece should make it possible to wear underneath the clothes, attached to a collar or back of the tie.

• Tastes and preferences- Different individuals have different tastes and preferences. You can chose an earpiece that meets your needs and preferences in terms of comfort, style and colour

A security earpiece is normally worn inside or put around the ear depending on the type you choose and is usually connected to a 2- way radio or related device. An earpiece is also worn with a microphone and receiver that makes it possible for a person to communicate with other people wearing a similar earpiece.

Earpieces are normally won by bodyguards and security personnel for instance the US secret service, law enforcement officers and private bodyguards and security personnel to allow discreet communication for security purposes. Earpieces are either wired or wireless, with each type having different models, types, styles and makes

Earpieces can either be worn around the ear or in the entrance of the ear as a small ear bud. For extra discreetness, wireless earpieces are often preferred over wired ones since it’s hard to tell that someone is actually wearing a wireless earpiece as opposed to a wired earpiece. Wireless earpieces often receive signals wirelessly. A person needs to wear a separate microphone at the end of a sleeve or on a lapel. To send a message, the wearer needs to speak into the microphone and receive messages via the wireless earpiece

A wired earpiece works in the same way as a wireless earpiece the only difference is that the receiver is connected to the earpiece with a wire that anyone can see. However, the wire can be transparent to make it harder for people to notice. The wire is normally worn around the back of the ear to get out of the wearers way.

There are different types of wired earpieces including one wire, two-wire and three wire. One wire microphone consists of a single wire and no microphone, two- wire comprises of an earpiece and a single wire connecting the earpiece to the microphone which is usually connected to a sleeve or lapel.

A three-wire earpiece comprises of an earpiece, a microphone worn on the lapel, and a third wire that normally connects to a separate device on the hand to allow the wearer to activate the microphone at his discretion.

As mentioned above there are typically two types of earpieces and a wide variety of models under each type. The ideal earpiece will be determined by the wearer’s preferences, level of secrecy wanted, cost, comfort, and how versatile the device is.

The market is flooded with various models and makes so it’s important to understand your needs before buying an earpiece. Buy your earpiece from a reputable source. Do some research before buying your ideal security earpiece to understand the features, components, advantages, and disadvantages.

What is an Acoustic Transducer?

This was originally posted on http://www.wisegeek.com/what-is-an-acoustic-transducer.htm, credit should go them as this is a interesting article.

An acoustic transducer is an electrical device that coverts sound wave vibrations into mechanical or electrical energy. They have various practical applications, including sound recording and sound playback. A specialized model, called an ultrasonic acoustic transducer, can be used to measure distance to, as well as the mass of, an object.

Common types of acoustic transducers used in sound recording include microphones, earphones, and guitar pickups. These create electrical energy when moving parts inside the transducer, such as electrical plates or ribbons, are exposed to sound vibrations. The electrical energy produced inside the transducer is sent first to an amplifier.

The amplifier then sends this energy to its final destination, usually a loudspeaker or recording device. The loudspeaker reproduces the sound at a level that the human ear can hear. A recording device will retain the electrical signal information. The recorder will send the stored signal to a loudspeaker during playback.

An ultrasonic acoustic transducer can be used to measure distance or the mass of an object. The most common type is the piezoelectric acoustic transducer. These include a piezoelectric ceramic element that creates and distributes ultrasonic sound waves.

Sound waves travel to an object from a piezoelectric transducer through material called a couplant. The couplant is usually water. Sound waves bounce off the object and return to the transducer in the form of an echo. The time it takes for these echoes to return to the transducer is used to calculate the distance to the object.

Underwater sound navigation and ranging (SONAR) is a common use of an ultrasonic acoustic transducer. SONAR uses directional beams of sound waves. This enables the SONAR operator to determine the direction and distance to an object.

SONAR systems can be active or passive. An active system sends out sound waves and listens for echoes. A passive system listens for noises made by ships, fish, and landmasses.

An electromagnetic acoustic transducer (EMAT) is another form of ultrasonic transducer. Instead of a ceramic element, an electro magnet is the main component of an EMAT. This is a type of non-contact, or non-destructive transducer. Unlike piezoelectric transducers, EMATs do not need a couplant to carry sound waves. Instead, two electromagnetic fields are generated to disburse ultrasonic waves.

EMATs can easily be used almost anywhere since no liquid is needed. For example, EMATs can be used to check for flaws in underground pipes. A downside to EMATs, compared to piezoelectric transducers, is that EMATs create weaker sound fields.

A Look At The Different Motorola Radio Earpieces

When it comes to discreet affairs, there definitely must be a discreet communication. Whether it is a security personnel or just a private group of designated people. Radios are used for communication between compatible devices within a specified location. Nevertheless, it would be less comfortable if someone talks via the radio and everyone hear the entire communication. Given the different types of two-way radios in the market, they usually come with a compatible earpiece. Among the most common radios are the Motorola radios. It would be super discreet and stylish if you had AMotorola radio earpiece to accompany your device. Some of the ideal Motorola 2-way radio earpiece connectors at EarpieceOnline include the following;

CP040 & DP1400 2-Pin Connector

This Motorola 2-pin connector can work with a number of Motorola 2-way radios. It can also support some of the old version radios such as the DP1400, GP040 and the GP300. Some of the novel version of radios that are compatible to this earpiece include the DP1400 and the DP1000.

Features of the connector

* It has a changeable Foam sock so that you can replace if it has worn out.

* The earpiece also has a comfortable and flexible C-shaped earpiece.

* There is a secure moulded ear hook, for holding firm on the ear.

* It provides high quality audio.

* It comes with a noise reducing microphone for enhanced reception of incoming voice messages.

* The earpiece has a plastic that is covered by a label clip PTT button. The wire PTT is separated from the microphone and an ear hangar earpiece.

* It has a RoHS compliant feature and comes with Motorola earpiece 2-pin connector GP300/CP040/XTN/DP1400 and GP340 adapters.

DP3400 & DP3600 Multi Connector

This is a multi pin connector works with all DP3000 & DP4000 range of radios, with a 12-pin connector, it slots perfect onto the side of the DP radio and is securely screwed in so that the earpiece is securely locked in.

Features

* It is incorporated with Kevlar Reinforced for better surveillance and security.

* It has a secure fit tube connector, to avoid accidents of it cut from rough encounters.

* It offers a high quality audio.

* The earpiece has a Lapel clip PTT button and a separate wire PTT. That is separated from a noise reduction microphone and an acoustic tube. The acoustic tube runs over the ear, the FBI style.

* There is a changeable connector for flexible modification and flexible mushroom plugs that you can replace whenever.

DP2400 & DP2600 multi connector

This is yet another different multi-pin connector that lets you connect to the DP2000 range of radios. This 8-pin connector fits on to the side of the radio and is locked in with a ‘pull out and slot-in’ connector, reducing the risk of broken screws or damage to the radio.

Features

* The acoustic tube runs over the ear and it has a secure fit connector for super surveillance and comfort.

* It has a separate wire PPT different from the acoustic tube and a microphone that reduces noise from the surrounding.

* The mushroom plugs are changeable and you can simply remove them when they are loose or worn out.

* It produces a high quality audio that reduces strain even when in a noisy environment.

GP340 & GP680

This multi connector is compatible the GP range of radios, including the GP340 and GP680. The Connector is a 13-pin connector and is secured on the side of the radio, with a screw-in to secure the earpiece to the radio.

Features

* This multi connector has a high quality audio reception. That makes it comfortable to use anywhere, even in a crowded, noisy place.

* There is a microphone, which is separate from a wire PTT and an acoustic tube. The microphone is a noise reducing microphone, that helps to make the other end-user be comfortable.

* It has a RoHS compliant and an over the ear acoustic tube that holds firm to the ear.

* There is an adjustable connector that is versatile to other devices.

An elegant and well fitted earpiece will not only promote surveillance, but it will also be comfortable on the ear. That will ensure it is safe from damages in rough situations. A Motorola radio earpiece will be beneficial if you want a comfortable communication without having to speak loudly over the radio. Some of the radios are also slightly heavy, which makes them more comfortable when using an earpiece, that is worn beneath the clothing.

What you need to consider before buying a Motorola Earpiece

For most people, clarity of sound when using their radios is very important. Only through clear sound will you be able to receive and understand the message being conveyed. For proper sound, you might consider using a good set of earpiece. Motorola radio earpiece is the ear piece to go for. This earpiece has been made using the latest technology to ensure you enjoy top quality sound. Additionally, the huge popularity of the gadget is more than enough proof of its reliability and exceptional performance.

How to choose the ideal earpiece
There are numerous brands of earpiece flooding the market. This makes it hard trying to choose the best earpiece. However, it is very much possible settling for the best. This is possible only if you put a few factors into consideration. Some of the things to note include:

• Cost. You certainly do not expect to spend a lot on this gadget. As much as you do not want to spend much, it is important that you consider the price. Ensure that you go for something that has a reasonable price. This will ensure that you get what you are looking for plus full value for your money.

• Quality. Price will certainly dictate quality. Quality earpieces produce clear sound. Additionally, quality means that the earpieces are durable and can endure any type of conditions.

• Brand name. The brand name on the earpiece is also very important. Therefore, ensure that you only go for a gadget that has been manufactured by an experienced company.

• Reviews. You might want to seek the opinion of people who have used the brand that you want to go for. This will ensure that you get an overview of the product you want to purchase.
motorola earpieceMotorola radio earpiece will definitely meet and surpass the requirements of any customer.
Why you need to chose Motorola radio earpiece
By choosing the earpiece from technology giants Motorola, you are assured of leaping numerous benefits. Additionally, the fact that the earpiece is widely used is more than enough proof of its reliability. The gadget has also undergone testing and has been proven fit for use. Some of the advantages of choosing Motorola earpiece are:

• Affordable. This gadget is offered at a very pocket friendly price. This is meant to ensure that anyone despite class or status can afford to receive the best sound from their radios

• Quality. This is a high quality gadget that gives an outstanding performance. The sound produced is of high quality and crystal clear. This does not pose a threat to the well being of your ears. This makes the earpiece very reliable.

• Durability. The material used in manufacturing the earpiece will ensure that it serves you for long. Additionally, the earpiece is able to withstand any condition without wearing out.

• Widely used. The wide use of this radio earpiece is more than enough assurance that you are purchasing a high quality product.

• Ideal for privacy. At times you might require taking a message discreetly. The Motorola radio earpiece will ensure that you receive the message in a clear manner.

• Striking features. The 3.5 mm jack makes it possible for you to use the earpiece with different gadgets. The earpiece is also built to enhance comfort while using it. It is compatible with: DP2400, DP3400, GP340 and CP040.

Where to purchase the earpiece
With the rise in counterfeit products, it is surely a hard task finding original products. Therefore, ensure you exercise a lot of caution when shopping for the gadget. This is a move bent at ensuring you do not make a purchase that you will later regret. Beware of con artists who are out there to make a kill out of your hard earned cash. Ensure you only purchase this gadget from a trusted dealer. Additionally, the earpiece is available in various online stores. Also, ensure you purchase from a reputable online store. This will ensure that you only purchase an original product that will diligently serve you.

Conclusion
It is time you received messages with a lot of clarity. This is only possible if you choose the appropriate set of earpiece. If you were wondering the ideal type of earpiece to go for, you now know better. Motorola 2 way radio earpiece is surely the choice to make.

World’s Largest Video Game Collection Nets £440,000 At Auction

A collection of over 11,000 video games – confirmed by The Guinness Book of World Records as being the largest in the world – has sold at auction for $750,250 (roughly £440,000).

Amazingly, the bidding began at just $1.

The auction, held via website Game Gavel.com, ended on 15th of June, leaving the collection’s (now former) owner Michael Thomasson a very happy man.

Thomasson, a lifelong gamer, operated seven different indie gaming outlets throughout the 1990’s and spent the last decade working at a chain store. During this time, he has also been running his own online business, Good Deal Games, since 1998.

“Whenever I purchased a game that did not directly come from the distributor I was able to look through all our inventory and pick out the nicest copy of a game, including grabbing the nicest box and manual”, he wrote on the item description for his mammoth collection.

According to Thomasson, over a quarter of his collection were still factory sealed at the time of listing.

“A few years ago, I supplied almost a thousand games to the International Center for the History of Electronic Games (part of the Strong Museum) and Shannon Symonds (the Acquisitions Cataloger for the ICHEG) stated that the games I sold them were the nicest collection of games they had ever received. And those were duplicates that were not as nice as the copies that I held back for my personal collection”.

Thomasson also went out of his way to confirm that Guinness’ assessment did not count duplicates, meaning that there were no repeats in the sold-off collection, either.

Michael Thomasson’s item description bragged, “Win this auction and you will have the largest recorded collection of games in the world – or Universe, even! I’m handing over the baton and the winner will instantly become the new crown holder, without three plus decades of meticulous hunting”. He wasn’t kidding, either!

56 bids later and Thomasson was more than $750,000 better off. The money, he claims, is being used to help his family with “needs that need to be addressed”.

In 2012, when Guinness World Records initially appraised the collection, it numbered 10, 607 titles. However, in the time between the broken record and the sale, Thomasson had added a further 400 games to his collection.

He also chucked in a lifetime subscription to RETRO magazine, as well as a signed copy of the issue that featured his collection.

“While I do not wish to part with these games, I have responsibilities that I have made to others and this action is how I will help meet them”, wrote Thomasson, of the eventual sale.

Scottish Spaceport Plans Announced

Scotland is being considered as the site of the UK’s first-ever spaceport, which could be here as early as 2018, it was reported this week.

The spaceport would be the first one ever built outside of the US.

What’s more, Scotland are definitely the odds-on favourite to be granted this prestigious (not to mention historic) prize, as eight UK aerodromes have been short listed as possibilities and six of them are located in Scotland.

It is thought that the spaceport would not only increase the country’s revenue by providing a site for satellite launches, but also through tourism, with ‘space tourism’ expected to increase in the next few decades.

Chief Secretary to The Treasury Danny Alexander (who was born in Edinborough), told BBC News, “I am delighted that the government is pushing forward with its ambitious plans to open a spaceport in the UK by 2018. Spaceports will be key to us opening up the final frontier of commercial space travel (…) Scotland has a proud association with space exploration. We celebrated Neil Armstrong’s Scottish ancestry when he became the first man on the Moon and only last week an amazing Scottish company was responsible for building the UK Space Agency’s first satellite (…) The UK space industry is one of our great success stories and I am sure there will be a role for Scotland to play in the future.”

UKube-1, a satellite designed and built by Glasgow-based firm Clyde Space, was launched earlier this week. It was the first ever spacecraft to be fully assembled in Scotland, but it may turn out to be the first of many.

According to the BBC, UK profits from the space industry are now exceeding £11bn a year and it provides employment for some 34,000 people. It is also a significant growth industry, with employment figures rising by 9% since 2011.

The recent interest in the development of UK-based, but more specifically Scottish, space exploration technologies has also become linked to the current debate over Scottish independence, with the Scottish government suggesting that a vote for independence on September 18th would only strengthen the space initiative.

A spokeswoman said, “Scotland is proving that it has the expertise to attract and support such a specialized, global industry, and as such an independent Scotland will be an attractive option for spaceport pioneers.”

However, it seems probable that the plans for a Scottish-based spaceport will go ahead either way, whether Scotland is declared an independent nation or not. In addition, doubts about the potential strength of an independent Scotland’s economy may also act to the detriment of its space research.

2 Way Radio Online Asks What Is A Two Way Radio And Who Uses Them?

A two-way radio is basically a radio that is structured to transmit and receive. In general, most voice-wireless communications technology, counting cellular systems, are categorized by two-way radio definition. Usually, a two way radio refers to a radio system primarily utilized for group call communications. This two-way system is also called PAMR Public Access-Mobile Radio, PMR Private-Mobile Radio, LMR Land-Mobile Radio, and PMR Professional-Mobile Radio.

Portable 2 way radios are frequently called “walkie-talkies” or “handie-talkies.” Not much different from “handie,” the term sometimes used to describe mobile phones. While we’re on the subject, it’s probably best to get something out in the open right now. People often interchange the terms two-way radio and walkie-talkie.

However, walkie-talkie is chiefly a generic or slang-term for hand portable two way radios. Moreover, the term usually implies non-professional, license free, consumer type, or “toy” equipment. When referring to two-way radios, people are basically talking about professional licensed equipment. A walkie-talkie is generally a hand-held CB radio. A 2 way radio is of superior quality and utilizes much higher frequencies. Two-way radios can also be found in mobile and base-configurations in addition to using radio network-infrastructure.

In addition, two-way radios are usually decked out with a PTT or “Push-to-Talk” key to trigger the transmitter. Users simply press the PTT key and quickly begin a conversation. The user lets go of the PTT key in order to hear others.

A two-way radio user can talk immediately with other radio users or utilize radio network-infrastructure. A direct-talk amongst radios, normally referred to as direct more operation/talk-around mode, has restricted reach because of limited radio power. To defeat this restriction, a radio network-infrastructure can be used to expand the communication range.

WHY USE A TWO WAY RADIO?

With numerous choices in wireless technology today and with 2 way radios being one of the first wireless devices, some wonder if this type of radio is still a useful gadget in the current world of technological communication. Well actually yes. There are two main features that differentiate two-way radios from other wireless gadgets:

-Instantaneous Communication

Two-way radios offer instant communication. Users can simply press the PTT or “Push-To-Talk” key and inside a fraction of a second, the user can instantly speak and convey their message. This is because of the quick-call setup time entrenched in the technology. This quick communication possibility is one of the main reasons why businesses and organizations prefer two-way radios for their operational or tactical communications.

-Group Communication

An additional unique feature of two way radios is its ability to facilitate “group-calls” or “one-to-many” communications very effectively. This means that one user can easily communicate with one, five, twenty, hundreds, or even thousands of other 2 way radio users simultaneously.

In other words, there’s no need for users to repeat themselves time and again if they need to communicate with more than one user. Moreover, two way radios performs perfectly for group communication using a minimal amount of RF channel-resources. If every user were in the same vicinity the majority of the time, they would only need one-channel resources to speak to hundreds of other users.

WHY NOT SIMPLY USE ANY WIRELESS-SYSTEM?

There is an abundance of wireless-technology today, and they all have their advantages and disadvantages. The choice of which technology is idea for one’s group or association will depend upon if the technology can satisfy the user’s requirements. For users who need to function in a group, communicate instantly, and remain mobile, a two-way radio is the best choice compared to the other wireless technology available on the market today.

You may still wonder how this can be possible with smartphones, iPods, iPhones, tablets, mobile phones available. Here are the main reasons why these technological gadgets may NOT meet the above requirements:

-Instant Communication

Consider this scenario. You are out hiking, run into an emergency situation, and must communicate quickly to confirm your dilemma. If you were using a mobile phone, for instance, you must dial a number, wait while the call is being setup and connected; that’s if you get a signal. The phone must then ring to the other person, and they finally answer, if their voicemail isn’t on! The whole procedure could take several seconds and within that valuable time, your situation could easily worsen.

With a 2 way radio, you simply press the PTT key and yell “emergency” while the other users “immediately” pick-up your signal. This is assuming that RF-channel is accessible. However, there is a way that two-way radios features can surmount RF-channel blockage and give highest-priority to emergency calls, a feature not available to other wireless devices.

-Group Communication

Take this example. You need to let your staff know that there has been some changes for a planned meeting. If you have to contact them one at a time, it could become tedious. With a two-way radio, you can simply select your talk-group, press the PTT key, and begin your message to five, 10, 15, or however many staff members you need to communicate with simultaneously. Now, raise that number to 1000 workers and imagine the work involved if you had to go through cellular phone channels.

Though some wireless systems permit group calls, it usually restricts the amount of group members that you can communicate with at one time. With a two way radio, you simply need to speak once and be heard by many.

WHO USES 2 WAY RADIOS?

Two-way radios have been utilized for many years by numerous industries and associations. Because of the nature of their operational requirements, they use two way radios to broadcast their operational and communicational needs. Organizations and industries that may depend on two-way radio usage are:

-Public Safety associations such as EMS emergency medical services, police, ambulance service, fire brigade, disaster-recovery agency
-Security like intelligence agencies and military
-Transportation industries like subway, railways, seaports, airports, subways
-Oil and gas companies
-Utility companies like cable TV, telephone, water, gas, electricity
-Construction companies for road and bridges, residential, commercial
-Transport service companies like trucks, limos, taxis
-Hospitality industries like tourism, restaurant, resort, and hotel
-Service industry such as towing and delivery companies
-Government agencies like public works, embassies, municipal, district governments, and ministries
-Manufacturing
-Contractors for roofing, plumbing, excavating, electrical
-And many more…

Overall, those who utilize two-way radios are frequently businesses or agencies with many staff members or workers who work in groups and are mobile.

TWO WAY RADIOS TODAY

Today, two-way radios come with additional or improved features from years before. For example, display screens show important information at a quick glance, keypads lock to maintain channel settings, there are various ring-tones and silencers to choose from along with out of range alerts, and much more!

Mars Rover Spots UFO…Or Does It?

After much global speculation, NASA has at last put out an official statement regarding the true identity of the ‘white spot’ or ‘UFO’ seen on Mars by the Curiosity Rover on June 20th.

…Sadly, the UFO in question turned out to be only as extraterrestrial as a camera glitch.

Interviewed by The Huffington Post, Justin Maki, the main camera operator for the rover, said, “This is a hot pixel that has been around since we started using the Right Navcam (…)In the thousands of images we’ve received from Curiosity, we see ones with bright spots nearly every week, these can be caused by cosmic-ray hits or sunlight glinting from rock surfaces, as the most likely explanations.”

As any photographer will tell you, ‘hot pixels’ sometimes occur during long exposure shots. Such glitches are usually caused by the camera’s sensors momentarily overheating (although they pose no danger to the camera equipment itself).

Amateur photographers occasionally mistake hot pixels for paranormal phenomena as well. In fact, the ghost website ‘Photographing The Paranormal.com’ actually has a section on these little buggers. It warns potential ghost hunters that,

“A perfectly symmetric small red dot in your picture is probably nothing paranormal, especially if it is at the same spot in most of your pictures. That’s actually called a hot pixel, if you spot one, don’t call the press!”

Older astronomy enthusiasts will no doubt be reminded of the discovery of the ‘Martian face’, a famous image captured by NASA’s Viking 1 orbiter in 1976.

Various theorists hurried to suggest that the ‘face’ was evidence of a long-lost Martian civilization (complete with ‘pyramids’ and everything), but it was actually just a large formation, captured by the relatively low-resolution cameras of the 1970’s, that looked a bit like a face.

Modern images, of course, reveal nothing so grand. The ‘Martian Face’ fiasco is now seen as an example of paraeidolia, a psychological phenomenon that sees people finding recognizable patterns in otherwise random sounds and images, examples of which include The Man in the Moon, Rorschach tests and those times when people see the faces of religious figures in ordinary household objects.

So it seems that there was no reason for us to get excited after all (except that pictures of Mars are unassailably cool).

…Of course, the conspiracy nutters are never going to buy it, but hey, what can you do?

The robotics race has started and google have a big stake

Google has officially announced that it has acquired seven robotics companies in the last six months, with the ultimate aim of creating a Google robot.

As far-fetched as it might sound, the firm’s takeover of companies like ‘Bot & Dolly’, ‘Industrial Perception’, ‘Autofuss’ and ‘Redwood Robotics’ is a clear sign that Google has big plans in this area.

Andy Rubin, who (perhaps ironically) oversaw the development of the Android operating system, is in charge of the project. He has stated that Google has a “10-year vision” for its robotics interests.

“We’re building hardware, we’re building software. We’re building systems; so one team will be able to understand the whole stack”.

However, despite rumours to the contrary, Google has explicitly stated that it does not plan to create any kind of robot for consumer purchase, leading some to speculate that the resulting Google product will be used to handle deliveries, thus going head-to-head with Amazon’s proposed Prime Air Project (which would use unmanned drones to deliver goods to customers by air).

The company itself has remained cagey regarding details. The official word so far is that “Any description of what Andy and his team might actually create are speculations of the author and the people he interviewed”

That’s what we get for asking nicely.

The project will operate between offices in Palo Alto, California and Japan.

The companies taken over by Google specialize in an esoteric mixture of robotics-based sciences. For example, Japanese acquisition ‘Schaft’, taken over earlier this year, specialize in the creation and operation of humanoid robots, while American company ‘Holomni’ work mainly with caster wheel modules that can accelerate a vehicle’s motion in any direction.

At this point in time, despite lots of media interest, just what Google plan to do in the field of robotics is anybody’s guess, however it should be noted that the science of robotics has come along in great leaps over the past several decades. Perhaps it is time for a Google Android in every home?

During a recent interview with the New York Times, Mr. Rubin described robotics as “A green field” and it will certainly be interesting to see what grows from this.

How Does A Virtual Reality Headset Work?

Virtual reality, which I’m going to define as ‘the creation of a computerized 3D environment that can be interacted with and manipulated in much the same was as the real world can’, is a pretty multi-faceted concept. There are quite a few ways to allow interaction with a virtual environment (VE), but the headset is perhaps the best known.

So, the key thing that a VR headset needs to be able to do is track the movements of the user’s head (and, where possible, their eyes) in order to allow for better interaction with the VE. After all, if I tilt my head from where I’m sitting and look at the ‘Macho Man’ Randy Savage action figure that stands on my desk, the positioning of my eye line will change my perspective of the figure. So VR, in order to be convincing, needs to work on the same principle.

A good follow-up question would be ‘why does a grown man have an action figure of ‘Macho Man’ Randy Savage on his desk? But frankly, that’s a story for another time…

Anyway, VR headsets commonly use two screens, one for each eye, in order to create a stereoscopic effect, which allows the illusion of depth perception to take place. A PC (or MAC) will then generate the 3D environment in response to the subject’s movements (this technology is not a million miles away from the design of free roaming 3D video game environments).

There’s a really cool scene in one of my favourite ‘guilty pleasure’ movies, which serves as a nice example. The scene appears in ‘Three To Tango’, starring Matthew Perry (of ‘Friends’ fame) and Neve Campbell. In the scene, Matthew Perry and Oliver Platt (who work as architects), compete with a rival team for an attempt to refurbish an old building. The rival team (for trivia buffs, they are played by Dr. Cox from ‘Scrubs’ and Phoebe’s Dad from ‘Friends’) create a lavish, all-encompassing, VR environment for their would-be employer to explore, whilst Perry & Platt use an old-timey optical illusion device to better explain theirs.

Essentially, despite appearances to the contrary, both technologies operate on the same principle. Both are, when all is said and done, optical illusions. The difference with VR is that is reacts to you as you react to it, whereas the old timey optical illusion stuff simply stays the same.

In terms of the headset, that’s pretty much all its doing. It is the program (being run from the PC or MAC) that is the really clever piece of design.