Sunday, 7 December 2014

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?

Saturday, 6 December 2014

On The Actual Air, Inside The Air Radio and Air Travel, an inseparable Mix

Radios are a Vital Tool for Air Travel. At London Heathrow airport, for example, three hundred companies employ some 80,000 people every day, whilst 65 million people leave from, arrive at, or pass through the airport. In the face of such staggering humanity, fast, efficient communication becomes paramount.

Medical personnel need to be notified quickly in case of an accident. Security guards must be able to respond and react to any potential threat as swiftly as possible. Other, daily issues such as reuniting lost children with their parents, locating missing luggage and the inspection of imported goods, must also be dealt with in a clear and professional manner.

Without areliable network of two-way radios, the entire daily operation of any airport would be next to impossible.

Today, most modern airports have switched from having individual radio networks specific to each company, to the employment of more integrated solutions. In 2000, the engineering firm Arup was employed by BAA to make these changes possible at Heathrow, specifically in Terminal 5. According to the firm’s official website,

“Previously at Heathrow, individual mobile operators had installed their own infrastructure, resulting in duplication and proliferation of infrastructure across the airport, standards of installation that varied, unreliable records, and unsightly clutter to the terminal landscape”.

Eventually, the site continues,

“It was jointly agreed by BAA and Arup that the most appropriate solution for the new terminal was common infrastructure that could be shared by multiple parties”.

The changes at Terminal 5 proved to be a success. These days, most airports follow this model of radio communication. The benefits are enormous. Airports are running smoother than ever thanks to improved cross communication between individuals and departments (everything from catering, flight and cabin crew to cleaning staff, border controls and freight handling).

Two-way radios are superior to mobile phones for these tasks because they are instant. Also, there are very few lapses in signal and they are sturdy enough for use in almost any environment.

Think of your mobile: if you came upon an accident right now and you wanted to call somebody and report it, you would be dependent on a multitude of factors, wouldn’t you? Do you have signal? Do you have credit? Will they even pick up the phone at their end? However, a two-way radio eliminates most of these problems. The operator simply presses the button to talk and awaits the reply. Easy.

Two-way radios cover a large area, can be used on secure channels and are cost effective solutions to communications challenges presented by organizations such as Heathrow.

The benefits of a two-way radio system have been well known for a long time, it is a system used by police, the armed forces, building contractors, security firms and, of course, cab drivers, the world over. Plus, the technology isn’t upgraded too often, so there’s not much risk of your purchase becoming obsolete by the time you put down your deposit.

In a very real sense, airports would struggle to complete one outgoing flight a day without two-way radio technology.

the origin of this post is here

Wednesday, 3 December 2014

The Doctor Who Earpiece Experiment

The short answer is ‘no’. Apple Earpods debuted in 2012, a full six years after the ‘Doctor Who’ episode ‘Rise of the Cybermen’ first aired.

Within the context of the series, the Earpod devices were designed as a metaphor for society’s perceived over-reliance on portable technology in the 21st century. The name ‘Earpod’ was a play on words, meant to superficially sound like the word ‘iPod’.

In addition, the fictional earpieces were mainly utilized as a way to re-package classic Doctor Who antagonists the Cybermen for a new audience (who may have been unfamiliar with them following the gap between the show’s cancellation in 1989 and its subsequent reintroduction in 2005). Variations on the Earpod device are also utilized in later episodes from the same series (in particular, ‘Army of Ghosts’).

Whilst it is something of a stretch to imagine that nobody at Apple has ever watched ‘Doctor Who’, the use of the name did not seem to affect the American computer firm’s decision to create and market their own brand of ‘Earpod’, in 2012.

doctor who earpiece

In terms of legality, it seems reasonable to assume that ‘Doctor Who’ created the brand name for satiric purposes, rather than to create an entirely fictional brand/product (such as The Simpson’s ‘Duff Beer’).

Had Apple simply adopted a product name already owned by the BBC, there may have been a legal scuffle between the two corporations, but since BBC’s product was obviously intended as a wry commentary or, at most, a satirical send-up of existing technology (in particular technology made and marketed by Apple), then it is highly doubtful that there was any friction at all.

Apple’s Earpods (which, as far as we know, have never caused anybody to be turned into a cybernetic creature hell-bent on universal obliteration) are available at a fairly affordable price (the Apple site lists them at £25.00 before P&P), but do not have a reputation for being one of the company’s better products. In a particularly scathing review, TechRadar wrote that,

“The tinkle at the high-end is certainly better than before, and there's improved bass as well. So they're more than good enough if sound quality is not something you are bothered about. If you're going to be buying an iPhone 5 or one of the new iPods, you'll be getting some marginally better earphones than you might have expected, so that's a good thing. But for anyone thinking of buying these things separately for £25/$30 â€" forget it. That price is utterly ludicrous. For that money you could bag yourself a decent pair of Sennheisers â€" low end ones admittedly â€" but they would still be head and shoulders better than the Apple EarPods. In fact, we challenge you to find a pair of £25 earphones on Amazon that sound worse than this - you won't be able to”.

All things considered, the Earpod is a pretty basic variation on the standard Apple headphones. It is not even marginally related to the mind-controlling earpieces utilized by the Cybermen. At least, as far as we know...

The long road Home: Radios employed in Transport systems and Fleets

According to the UK Government, there were an estimated 5.2 billion bus passenger journeys undertaken on our roads in 2011/2012. Public and private transportation is not only big business; it is also of massive importance to the smooth running of the country.

Whilst only 14% of the UK’s 25 million commuters travel to work by bus or train, this still accounts for over 1.7 million people. In order for a country this reliant on public transport to survive and thrive, it is absolutely imperative that transport workers can communicate with each other in a quick, efficient manner, fuelling an industry that, by necessity, spans the length and breadth of the nation.



Two-way radios provide the solutions to this monumental challenge.

Rail, bus, here make use of two-way radios in order to keep up to speed with vital information. Drivers and managers can easily contact command and control centres, as well as liaising with depot staff and even customers, all due to using their radios. Together with integrated GPS systems, radios help transport and fleet workers to track deliveries in real time, as well as informing would-be passengers or commuters of any delays or early arrivals.

But it isn’t just truckers making deliveries, commuters travelling to and from work and trains running on time. Public transport is one of the most important aspects of the tourism industry, itself a large part of Britain’s economy. Visitors flock from almost every country on Earth in order to visit popular sites like Stonehenge, The The Tower of London, Buckingham Palace and the beautiful city of Bath. Without a reliable public transport system, our tourism industry would be seriously harmed.

So, in order to keep things running as smoothly as possible, all relevant personnel are equipped with a two-way radio so that they can keep in direct contact with their colleagues, peers and managers. This also allows for speedy customer service, as well as up-to-date and reliable information.



Health and safety is also a huge concern regarding public transport and, since the tragedy of the London bombings 8 years ago, security is also a large issue. Workers specializing in either area find their radios to be among the most vital of their tools.

Transport companies employ a veritable army of security staff, as well as first-aiders all of whom are connected via rugged and reliable two-way radios.

Without radios, the country’s public transport system could very well come to a standstill. The roads and railways of Britain are, at least in some ways, kept in operation via a network of two-way radios.

the origin of this piece is here

Tuesday, 24 June 2014

I Want to Buy a Long-Range Walkie Talkie, What Should I Look out For?

Long-range walkie-talkies (which we’ll abbreviate here to LRWT, for short) come in many different shapes and sizes. They also typically boast a wide variety of extra features, such as LCD screens, weather warnings and emergency buttons. It is up to you to decide which of these extra features are worth spending out on.

Shopping for an LRWT is essentially the same deal as shopping for any other kind of walkie-talkie or two-way radio. Of course, you should ignore any claims that the radio can communicate across distances of 30, or even 25, miles, such claims are always to be considered fallacious (as we’ve discussed elsewhere this month). In addition, it is worth investing in a radio that has a ‘privacy’ function if you are planning to use it at a crowded event, or indeed in any place that is likely to play host to a lot of signal traffic.

Remember also that VHF and UHF radios are completely incompatible. DO NOT attempt to buy a VHF radio to go with a UHF radio (or vice versa), just trust us on this.

It also pays to be aware of licensing requirements. Many radios will need to be used with a license, which you can attain relatively easily (and often surprisingly cheaply). It does, however, absolutely need to be done. Of course, an LRWT that is listed as PMR446 (or has a power output of less than 0.5 watts) requires no license.

Other questions you could ask yourself are:

What type of batteries does your prospective LRWT use? Are they AA, AAA or rechargeable (we recommend the latter)?

Is the radio water/shock proof? Does it need to be?

Another consideration is ease of use. In order to be truly effective, a walkie-talkie needs to be easy to use. There is a school of thought which suggests that, the more buttons there are to press and functions there are to master, the less effective the user will be in a crisis. If you can get extra functions that do not otherwise impede the simplicity of layout and use, then you’re probably onto a winner, but otherwise, we reckon simplicity is key.


The most important thing to keep in mind, however, is what you want the radio for. Do not, under any circumstances, lose sight of the task at hand. If you are looking for a professional piece of equipment, many of these decisions must be made with your staff in mind. However, if you’re just looking to have a bit of a laugh, then you needn’t be as picky as we’ve suggested. 

Friday, 9 May 2014

What is Ham Radio & How Does it Work

Ham radio (so called because its operators were originally derided as being ‘hammy’ in the 19th century, when the technology first emerged) is a term that applies to any form of amateur radio broadcasting.

There are designated radio frequency spectra available solely for public use. Uses range from recreation to communication and the non-commercial exchange of ideas. ‘Hams’ take advantage of these frequencies in order to transmit any number of things

Strictly speaking, there should not be any money involved in amateur radio (hence the term ‘amateur’). Although the majority of Ham radio practitioners are actually extremely knowledgeable about radio technology (don’t let the ‘ham’ part fool you), they are not considered professionals because they do not profit from their endeavours. Conversely, commercial broadcasting involves (a lot of) money: royalties are paid, producers and performers are paid and the whole thing is ultimately a commercial exercise.

Hams use a large amount of frequency bands from all across the radio spectrum, but the majority of frequencies are to be found just above the AM band.

A lot of hams, however, use VHF FM, operating hand-held transceivers that send on one frequency and receive on another. Local radio clubs set up FM Repeaters (which borrow space from other broadcast devices such as towers and, in doing so, amplify the radio signal’s strength hundreds of times over), so that hams can communicate with each other wirelessly over a distance of hundreds of miles.

As an example of what hams get up to, here’s an excerpt from Gary Brown, of ‘How Stuff Works.com’

Although a ham radio does broadcast in all directions, hams generally do not use their radios in a broadcast kind of way as a disk jockey would at a radio station. In normal AM or FM radio, one disk jockey transmits and thousands of people listen. Hams, on the other hand, conduct two-way conversations, often with another ham or with a group of hams in an informal roundtable. The roundtable of hams may be in the same town, county, state, country or continent or may consist of a mix of countries, depending on the frequency and the time of the day. Hams also participate in networks, often called nets, at predetermined times and frequencies to exchange third-party messages. In the case of disasters, hams exchange health and welfare information with other hams.

To become a ham, I recommend that you join a club. You’ll need an amateur radio license, of course, but this won’t break the bank, I’m sure. 


Monday, 14 April 2014

What is the curly tube that FBI Agents wear in their ears

You’d consider that the U.S. FBI (being the United states FBI and everything) would have access to an earpiece a little cooler that just the conventional ‘curly cable’ job, wouldn’t you?
If forced, I’ve to state that I usually imagine a little old fella, like Desmond Llewelyn in the Bond films, (and even a younger example like Ben Whishaw from ‘Skyfall’) making all the devices himself after which explaining them to the agents before they go out and protector the President’s life.
This is simply not the case. They use the models they use as they work and they work well. Fundamentally, wired models continue to be more dependable than their wireless counterparts. With wireless, you tend to get more interference, as well as having to contend with more restricted bandwidth. Essentially, you will need reliable tech when you’re within the field. Lives are at stake in a number of cases.
This straightforward, trusted earpiece might be relied upon to do the job, every time.
Another benefit that wired earpieces have over wireless ones (in this instance, at the least) may be the fact that a wired set needn't carry an additional battery. Wireless earphones would require charging and, as a consequence, would have a somewhat limited operational capability. It just causes a lot more headaches for individuals who, let us face it, previously possess a good bit on their plates to start with.
According to ‘AskJeeves.com’
The ‘curly earpiece’ tech is really rather common and has been utilized by a number of individuals and organisations beyond the secret service. You can even purchase a wireless version, but don’t expect the FBI to be interested!
I might argue another point, but this is just a pet theory with very little research to back it up. Psychologically speaking, when you see a secret service agent, you recognize them as such without observing them in any form of uniform (beyond a dinner suit, sun glasses and an earpiece), the earpiece, then, is really a subtle reminder to, the civilian, that not merely is this not a regular person in a suit, but also that the area where you now end up is being closely monitored.
With one remark to his/her earpiece, the agent in question can probably call down all the other agents in the immediate area, as well as police, fire brigade and anybody else he/she believes is essential. That subtle reminder is probably a very potent crime deterrent. No guns need to be displayed, no helmets or flak jackets worn and yet y’know that this individual has eyes all over the place and will, probably, really ruin your month. As I said, it’s merely a assumption, but It looks like it makes sense.