Wednesday, September 30, 2015

How Do I Choose a Good Two Way Radio?

Choosing a good two-way radio is relatively easy. In fact, the vast majority of radios are ‘good’ in the sense that they will do their specified job to a reasonable standard.



With the majority of two-ways, you don’t need to worry about operating systems (like you would with tablet PCs) or compatibility issues* (like you would with games consoles). All you really need to worry about, in fact, is what you want to use your radio for; this is by far the most important question you need to ask yourself if you’re ever buying a walkie-talkie or two-way radio.

If you’re just looking for a way to keep track of the kids on your next cruise, or you want something to add a bit of fun to your next outdoor excursion, then all you really need to do is find a trusted brand and buy a medium-priced model. It’s as simple as that. However, if you’re a businessperson and looking to buy a radio with a license, then you need to be a bit more careful. In that respect, you definitely want a trusted brand and you definitely want to consult a specialist before you invest in your equipment.

If you happen to fall somewhere in the cracks between these two examples, we’ve prepared a ‘fact sheet’ (of sorts) for you.



  • There are Four Main Types of Two-Way Radio...




GMRS (General Mobile Radio Service) â€" Is a higher-powered radio, popular for its reliability and versatility. GMRS is the most common choice among users.

FRS (Family Radio Service) â€" Is usually more of a basic model, lower powered, but generally cost-effective.

MURS (Multi-Use Radio Service) â€" Is an unlicensed radio that only has a limited capacity. MURS radios are not a particularly popular choice, although they do have their adherents.

And finally,

CB  (Citizen’s Band) - It is called different things in different countries, but CB is a personal service and is a popular choice, however it does require a long antenna. Good for drivers, though.



  • Wattage is Important...




No, we’re not talking about that Italian-sounding hybrid of a bluebottle fly and Cyril Sneer from the ‘Star Wars’ prequels here; wattage is the measurement of watts, as in power output. Wattage is important in radios because it affects licensing. In the UK, for example, radios that have a power output greater than 0.5 watts require a license to use.

It is also important to note that any radio, no matter the power output, will automatically downgrade to a half watt when operating on FRS-specific channels.



  • Keep Signal Coverage in Mind at all Times...




Two-way radio manufacturers do a lot of lying and exaggerating about the range of their products. Their claims almost never take into account the signal interference caused by objects in the way, natural obstacles, atmospheric conditions and a plethora of other variables.

On average, the actual signal coverage for any given radio is between one and two miles. CB radios can communicate over longer distances, but those extra long antennas can make them tough to carry around!



  • Privacy Codes are Useful Things...




 If you’re using your radio in a busy area (i.e. where there are lots of other radio signals bouncing around), you will probably find that the available channels get used up pretty quickly. However, a radio that provides CTCSS will offer a ‘privacy code’ function that allows you to subdivide your channels by creating a combination of channel and code, this will allow you to better communicate with others, even if the available channels are full.

It should be noted, however, that this function does not make your conversation private; it just reduces the levels of other signals in the area that your device may be intercepting.

Much of the information listed here was sourced from 2wayradionline so look them up if you want to know more.

Monday, September 21, 2015

New Tomb, New Queen Discovered in Egypt

The tomb of an ancient Egyptian queen previously unknown to history has been discovered this month.



Queen Khentakawess III (also referred to as Khentkaus III) lived in the fifth dynasty and is believed to have been the wife of Pharaoh Neferefre and the mother of Pharaoh Menkauhor Kaiu.

Until this discovery, this ancient queen was completely unknown to recorded history.

The tomb was found in Abu-Sir, South-West of Cairo, within the funeral complex of Pharaoh Neferefre. It is thought to be some 4,500 years old. Reliefs in the tomb referred to Khentakawess both as “wife of the king” and also as “mother of the king”, which suggests that she was the wife of Neferefre and the mother of his possible son, the Pharaoh Menkauhor Kaiu.

When archaeologists discovered that the name Khentakawess had been inscribed on the walls, they dubbed her Khentakawess III, as there are two prior queens to have used the name, including the mother of Neferefre.

The queen’s tomb held around 30 utensils fashioned from limestone and copper.

Phahaoh Neferefre’s reign is believed to have been a short one. Modern scholars contend that he only reigned for one, or maybe two years at best. This is corroborated by data from the Turin King List and the fact that his tomb was never properly completed, but was seemingly rushed to competition following his premature death (detailed analysis of the king’s remains suggests that he died in his early 20’s).

Today, Egyptologists know the tomb of Pharaoh Neferefre as ‘The Unfinished Pyramid’.

Pharaoh Neferefre was succeeded by his brother Nyuserre Ini, who is thought to have reigned for at least 24 years. Nyuserre Ini was himself succeeded by his nephew, Menkauhor Kaiu, apparently the son of Kentakawess III.

Pharaoh Menkauhor Kaiu ruled for 8-9 years and was eventually interred in a badly damaged tomb today known as ‘The Headless Pyramid’

Tracking the lineage of Egypt’s ancient kings and queens is a tricky task and the notion that Khentakawess III was the wife of Neferefre and the mother of Menkauhor Kaiu is disputed. However, at the time of writing this, the consensus seems to be that this is her likeliest place in history.

Egyptian antiquities Minister Mamdouh el-Damaty was hopeful that the discovery of this new tomb/monarch would help archaeologists and historians understand more about the Fifth Dynasty, which, along with the latter days of the Fourth Dynasty “witnessed the construction of the first pyramids”.

Thursday, September 17, 2015

Ancient Chinese Statue Contains Mummified Remains ...And Those Remains Contain Fascinating Artefacts.

A 1,000 year-old Chinese statue of the Buddha, which contains the mummified remains of a long-dead Buddhist master, has been scanned to reveal hidden artefacts that were tucked inside the body centuries ago.

The statue was scanned prior to being exhibited in the Netherlands as part of an exhibition of mummies, receiving multiple CT scans, DNA testing and an endoscopy, some of which revealed a few unlikely surprises hidden within the corpse.

The team that scanned the remains included Buddhism art and culture expert Erik Bruijin, gastrointestinal and liver specialist Raynald Vermeijden and radiologist Ben Heggelman, all of whom were fascinated to discover the presence of an unidentified material (in place of the internal organs) within the abdominal cavity, this material was joined by mysterious scraps of paper with Chinese writing upon them.

The body is known to be that of a Buddhist monk named Liuquin, a follower of the Chinese Meditation School who died around the year 1100.

Experts have suggested that the mummy of Liuquin may be a case of self-mummification, a slow (and presumably rather painful) exercise that included starvation, poisoning oneself and ingesting materials designed to aid in the preservation of the body after death.

One ancient Japanese method of self-mummification known to historians would entail a 1,000 day diet of nothing more than nuts, seeds and water, this was then followed by another 1,000 days of eating nothing but roots and pine bark and drinking a special tea made from the sap of a Chinese lacquer tree. The tea was toxic, but it apparently repelled maggots and destructive bacteria, thus aiding the preservation process. At the culmination of this severe diet, the monk would be sealed in a stone tomb and effectively buried alive.

1000 days after the monk had passed on, the tomb was then opened and if the had been preserved, he would become a venerated temple relic.

Those that had decomposed simply remained sealed in the tomb.

It is likely that master Liuquin preserved himself using similar methods.

Although this may sound unfathomably grisly to modern ears, it should be kept in mind that, to the practitioner, such an action was likely considered to be among the highest level of meditation and the monk’s colleagues may well have viewed his statue as a sort of ‘living Buddha’ for a great many years.



At present, Liuquin will be on display in the Budapest Museum of Natural History, but there are plans to send him over to Luxemburg in the summer.

This mummy-housing statue is the only one of its kind ever discovered. The piece offers scientists, theologians and historians a privileged insight into the spiritual practices of the supremely dedicated Chinese monks that lived and died a thousand years before us.

Wednesday, September 9, 2015

New Smart Cast Phone Has a Built in Laser Projector

Oh, now THIS is cool. A new phone unveiled by Chinese corporation Lenovo (makers of the Ideapad tablet, amongst others), will be able to project interactive objects, such as virtual keyboards or piano keys onto almost any flat surface.

The ‘Smart Cast’ phone (which could have been branded better, it has to be said) will also be able to project videos and photographic content onto walls, desks or any other flat surface, allowing the user to share videos (and even potentially screen movies) with multiple viewers.

The phone is able to project a fully functional replica of its own touch screen, or even a full-size computer keyboard if desired.



Despite being utterly tiny (34mm x 26mm x 5mm), the phone’s laser projector does not need focussing in order to project far larger images onto walls, desks, or anywhere else you might need to project an image (and for all you nerd lings aiming on creating a pocket Bat-Signal, forget it. I got there first!).

The projector itself can also be manually moved into at least one other position, which ensures that the projection quality should always be first rate.

...It even has a motorbike style kickstand to keep it upright when you’re using the virtual keyboard. How cool is that?

Justifiably proud of their new creation, Lenovo hired Chinese concert pianist Lang Lang to play the phone’s virtual piano as projected on the desk in front of him. I suppose they could afford to, as it was recently announced that their profits are up 20% from last year.

Of course, projector phones have been explored in the past, usually without success. The Samsung Galaxy Beam, released in 2012, was a failure of Star Trek: Into Darkness proportions (the joke being in the ‘beam me up’ area â€" in case you missed that) and the technology is notoriously hard to use. Still, perhaps this time somebody has finally gotten it right? Time will tell...

Sadly for us Brits, the Smart cast phone seems unlikely to be released here in the UK, so for us, it’s all a moot point in the end.

The Smart Cast phone was officially unveiled at Lenovo’s Tech World conference in Beijing, China, an event that also saw the debut of a new smartwatch, which has a ‘public’ and ‘private’ mode for some reason (all I can imagine it would be useful for is if somebody asked you the time whilst you were watching porn â€" at which point, keeping the screen on your wrist would defeat the object somewhat anyway).

It is open to interpretation as to whether or not the Smart Cast phone will be a stroke of consumer electronics genius or a costly failure, but for now, the early buzz certainly looks intriguing and you can pretty much guarantee that various engineering bigwigs employed by other developers will be following its progress with interest.

Monday, September 7, 2015

Everything You Should Know About Icom Earpieces And Icom Two Way Radios

The range of accessories offered by icom includes earpieces, radios, radio chargers, and microphones. Each product of icom is nicely designed, compact in shape and having one year warranty.

Working of icom earpiece

The icom earpiece is in G-Shape with right angled 2 pin headset along with PTT microphone. The use of earpiece is the most economical and highly preferred by the users while using the two way radio.

It is suitable for long distance communication and also it helps the radio user in making the private communications. The earpiece is made up of smooth material with soft rubbery surface which can comfortably fit over the ear bones.

The icom earpiece is the part of the radio which has coiled wire with a medium sized push to talk. The attached microphone is designed so well that it works in the loudest situations and in noisy environments. The microscope with its PTT unit is attached to the G-shaped earpiece . In most cases the earpieces with 2-pin connectors are the most common to be used in the radios which are useful in both marine field and the aviation field.

The connector having straight angle is present on the earpieces is mainly used by the radios to either switch on or off the sound directly.

Types of icom earpieces



The earpieces with single connection such as IC (with various identification codes which defines the uniqueness of this Icom Radio Earpiece with Microphone) have the straight fit connectors with the cable which controls the volume without affecting the earpiece.

The earpieces with two pin connectors such as IC - (with various identification codes which defines the uniqueness of the earpiece) have separate volume control switch along with the earpieces which will fit into the radio easily without any difficulty.

The 2 pin connectors in available for these Icom radios (with various identification codes which defines the uniqueness of the earpiece) having the well-designed compact switch for sound control and it helps the earpiece to fit comfortably into the radio without affecting its operations.

Features of icom earpiece

Most of the two pin connector fit comfortably into all types of icom radios depending on special kind of earpieces which can match the code number of the radio set. The information gives clarity about the compatibility of earpiece for the particular radio has been given in the detailed chart.

The icom earpiece has in-built microphone which is located in the middle of PTT switch and the flexible usage helps in transmitting the sound without using the microphone.

The icom marine radio

The range of icom marine products includes- Marine VHF, Marine HF and Marine UHF radios. Each one of the products has been time-tested and of higher quality and reliability.

The icom marine radio is water proof and starts flashing red light when comes in contact with water. The marine radio is lighter in weight but having high transmition capability and having longer battery life which is more than 10 hours.

The marine radio has beenbuilt with the help of advanced radio technology and it works perfectly well based on human reactions. Presently this device is used mainly by the security personnel and the police force in UK.

Wednesday, September 2, 2015

HP withdrawal leaves just one bidder for two police radio contracts

It can’t be said that this is a surprising development; mission critical communications have to be managed by radio based companies, not IT experts. Moving into the direction of using 3G or 4G for emergency services is a dangerous direction to take.

The Home Office is still planning to award new emergency services radio network contracts this year despite the fact there is just one supplier in the running for two of the deals, after HP withdrew its bid this week.

The existing network is used by 300,000 different emergency services and public safety bodies across the UK, however it runs on ‘Tetra’ radio, an old technology poor at supporting mobile data.

The government hopes this will be solved by switching to a 4G LTE network, although a number of industry experts have warned the technology may not be ready to support mission critical voice communications, which require constant uptime.

The government plans to award three contracts: one for user services, one for mobile services and another to appoint a delivery partner.



HP’s decision comes just a month after Telefonica pulled out of the mobile services deal, leaving just one supplier left in the running for two of the three contracts:  Motorola for user services and EE for mobile services. There are still four suppliers competing for the delivery partner contract.

An HP spokeswoman told ComputerworldUK the company had chosen to withdraw from the procurement process because it did not believe it could "submit a proposal that met the programme's requirements and timelines with a level of commercial and technical risk that was acceptable to all parties".

Despite the dwindling list of suppliers, the Home Office insisted it will still sign contracts later this year with emergency services expected to connect to the new network in 2016.

“There are six strong bidders competing for the main contracts. We have received their best and final offers and hope to sign contracts later this year,” a spokesman said.

However ComputerworldUK understands the department could reject offers if they believe they will not meet the needs of the emergency services or represent value for money, leaving the door open to a potential change in its plans.

The existing emergency services mobile network is operated by Airwave, which has said it is willing to help the Home Office with contract extensions until 2020.

All fire and rescue services have already agreed to continue to use the Airwave network until at least December 2019.

“In the long term we agree that LTE technology is the future of mission critical voice communications for the emergency services, but it is essential that the desire to adopt emerging technologies does nothing to compromise this country’s public safety, resilience and security,” Airwave said.

Source - http://www.computerworlduk.com/news/mobile/hp-withdrawal-leaves-one-bidder-for-two-police-radio-contracts-3619344/