Tuesday, April 19, 2016

World Radio Day focuses on role of radio in disaster management

World Radio Day on 13 February brings attention to the role of radio in managing disasters and recovery in their aftermath.



Radio is recognized as a low-cost medium, specifically suited to reach remote communities and is especially effective in reaching people affected by disasters when other means of communication are disrupted. Terrestrial radio broadcasts are effective in providing timely, relevant and practical information to people who are confused and demoralised by the impact of a crisis. Broadcast information is particularly useful in situations where physical access is difficult and aid responders may take several days or weeks to reach affected communities.



Recent natural and man-made disasters are a major cause for concern to the global community. “In times of crisis and emergency, radio can be a lifeline,” said United Nations Secretary-General Ban Ki-moon. “For people in shattered societies, or caught in catastrophe, or desperately seeking news, radio brings lifesaving information. This year, as we start carrying out the Sustainable Development Goals, let us resolve to use radio for human progress. On this World Radio Day, let us resolve to prove that radio saves lives.”

“Radiocommunication is indispensable in saving lives in the event of a natural disaster,” said ITU Secretary-General Houlin Zhao. “Collaborating and sharing experiences is critical in order to support national and regional preparedness, and ITU is deeply committed to facilitating rapid and effective response in emergencies.”

“Amidst the ruins and in the face of an emergency, the radio is often the first medium for survival,” says Irina Bokova, Director-General of UNESCO. “Its durability is an incomparable advantage, often enabling it to resist shocks and re-transmit messages of protection and prevention to as many people as possible, better and faster than other media, saving lives.”

New developments in radio technology and in the transmission and delivery of radio content, especially through mobile devices and through on-demand media platforms, further extend the means to engage disaster-affected communities. These digital innovations are increasingly important in delivering effective disaster preparedness and prevention, while reinforcing the importance of community radio services.

ITU has developed a number of standards for effective emergency radiocommunications, recognizing that direct communication via radio helps reduce the sense of isolation and helplessness experienced by crisis-affected communities. Recommendation ITU-R BT.1774-2 is the standard that relates to emergency warning systems for analogue broadcasting, which facilitates the use of satellite and terrestrial broadcast infrastructures for public warning, disaster mitigation and relief.

In addition, the 2015 ITU World Radiocommunication Conference (WRC-15) identified spectrum to facilitate mobile broadband communications for robust and reliable mission-critical emergency services in public protection and disaster relief (PPDR), such as police, fire, ambulances and disaster response teams. WRC-15 also reinforced protection to search and rescue beacons to uplink to satellites, such as the Cospas-Sarsat system, which has assisted in rescuing over 37,000 people worldwide since December 2013.

World Radio Day marks the anniversary of the first broadcast by UN Radio in 1946, when it transmitted its first call sign: “This is the United Nations calling the peoples of the world.” Ever since, UN Radio broadcasts have highlighted the principles of the United Nations to foster world peace and development. World Radio Day seeks to raise awareness about the importance of radio, facilitate access to information through radio, and enhance networking among broadcasters.

- See more at: http://www.tetra-applications.com/32088/news/world-radio-day-focuses-on-role-of-radio-in-disaster-management#sthash.WRnylSLy.dpuf

Saturday, April 16, 2016

They said that waterproof Two way radios would never exist, well they had better read this

Icom two way radios are well known in the marine and coastal industries. Why are these so well known in these industries? That is because the F1000 and F2000, along with the F1000D and the F2000D are all waterproof, being able to be submersed to a depth of 1 meter for a maximum of 30 minutes, that means that these radios can be used confidently on a boat, ship or other water fairing vessel and be splashed around before it starts smoking and sparking everywhere! The IP67 waterproof casing means that it is made for total protection against dust and dirt and can withstand immersion between 15cm and 1m.

When we talk about sound, we expect the highest quality of two way radios to have the best speakers producing the best output possible, but the icom website explains it like this “The large 36mm speaker of the transceiver provides clear commanded 800 mW audio. The built-in BTL amplifier doubles the audio output power and delivers loud and intelligible voice to a radio operator working in noisy environments” which basically means it produces some of the best sound out one of the smallest speakers on the market.

So let’s go over the radios themselves, something that isn’t so obvious is that they have split the frequency bands of the radios, the F1000’s is VHF only and the F2000’s is UHF. This is a brilliant idea from the guys at Icom, users often find it difficult to wade through a lot of the jargon of two way radios, so separating out the radio types into their respective bands goes a long way to remove the confusion.

You may have noticed that there are 2 choices for each F radio, the F1000 and the F1000 D the D relates to the radios being digital compatible, meaning it can be programmed to be used on current digital systems as well used as a normal two-way radio. Analogue and Digital capable so that it can do both jobs or be ready for when you expand and move to a digital system.



Over the years Icom have been consistent with their accessory connectors , a large range of their radios use the 2 pin connector, the only exception was the small multi connector that they introduced a few years ago. But these new F1000 & F2000 radios have been given their very own connector, very similar to the first generation but will not work with those radios, the new connector includes 2 holding screws. The range of F1000 radio earpieces is huge, with plenty to choose from, you will find any type of radio earpiece for these F1000 and F2000 radios.

If you are looking for a waterproof radio used by many in the marine industry then the F1000 or F2000, depending on your frequency allocation, would be a great choice. It can be dropped to a depth of 1 meter for 30 minutes, so if you worry about splashes on your radio or it sitting in a pool of water on your boat, then you can be assured that it won’t damage this radio. With the latest technology and digital capabilities these are as modern as many counter-parts in the digital two way radio market.

Monday, April 4, 2016

Can Two Way Radios of Different Brands Communicate

One question that is frequently asked by people interested in buying two way radios is that can you mix brands of two way radios. To answer this question properly, it is imperative to understand first how the devices work. It should be known that whether you have a small business or a large warehousing facility, UHF band radios never communicate with the VHF band radios. Therefore, if you are looking to buy a radio, make sure to buy additional units of the device of similar bands. In this way be it a UHF band radio or a VHF band radio, if set to the same frequency can work with all brands. However, some considerations have to be put in its place beforehand.

Functionality

Two way radios imply that it can both send as well as receive radio messages. They are transceivers that are battery powered. The radios operate on a half-duplex channel system. This system implies that the radio will be able to transmit a signal on a single channel that can be received on many devices at the same time. Normally these radios are designed to transmit short-range signals. Almost all of the two way radios function on the same principle. They all include a microphone, an antenna, a speaker, and the Push to talk Button. These radios are designed to function on different frequencies.

Frequency types

The general public use frequencies are the Family radio service frequency or the FRS and the general Mobile radio Service frequency or GMRS. Both these frequencies work on a 460 MHz rage. The UHF frequency or the ultra-high frequency is ideal for the two way radios as they can easily penetrate the interference in the form of building and trees. The two way radio with a long UHF antenna will push through the concrete and will do your work efficiently. On the other hand, VHF antennas on the radios are much longer than the ones in the UHF radios. These are ideal to use in the outdoors as they usually can transmit signals over very large distances.

Types of radios

There are normally two types of radios, that are used in businesses and that are used in consumer situations. The consumer radios normally work on the FRS or the GMRS frequencies. Regardless of the number of channels in the radio, the two way radios can be mixed with other brand radios. Only the radios have to be set to the same privacy code, the channel number, and the same frequency. Alternatively, there are several different types of frequency in the business two way radios category. The radios use the UHF, VHF and the 800/900 MHz type frequency. Just by choosing, the radio with the same frequency may not be compatible with the radios of other brands bought beforehand. While buying the radio, the dealer may have programmed a special customized frequency into the radio beforehand. In order for the business, two way radios to work efficiently with the radios of different brands it is essential to completely figure the type of band that the radio uses, the pre-set frequency on the radio from the dealer.