vendredi 27 novembre 2009

Discover How 2 Way Radios Are Cheaper Than Mobile Phones

By Frank Zweller

The best way to understand what 2 way radios are is as a combination of a radio receiver and a radio transmitter.

You are probably already very aware of just how useful a mobile phone is but consider if you are out of signal range what would you do then to communicate, the answer is to use a 2 way radio.

Transmission in a mobile phone takes place through the equipment of the network provider, a 2 way radio talks to its partner directly, the only restriction is range of transmission to the other handset which can be affected if there are large buildings in the way or maybe tall landscape features.

More technically mobile phones are full-duplex, and thus two radio frequencies are used, one for transmission and the other for reception. They can be both Analog and digital.

2 way radios are actually used in a lot of areas including police work, airports and building sites but most commonly where mobile networks are weak or unreliable. There is a privacy issue to consider here as well.

Some jobs, such as engineering or research, which require a lot of short distance communication at manageable costs, know that radio equipment is much the cheaper option over using mobile phones. Some other uses include toys for children, they make excellent toys and can be found at any department store.

Radios also find a lot of use in disaster affected zones, which might eradicate all forms of communication in that area. Pushing a button is much easier than dialing 10 numbers, and they find good use in emergency situations too. Finally, 2 way radios can substitute the intercom at many businesses and homes, are easy to carry around and are cheap as well.

Portability and cheapness plays a key role here. A two way radio cuts down on service charges and is easily carried as part of the rescue equipment when teams need to go into action.

Modern cell phone technology is of course also available but often suffers from high costs and problems due to the lack of network coverage. Plus, lets say you're going on an expedition or on a jungle safari, and suddenly you get separated, without a mobile signal. What do you do? Shout? Avoid this and get yourself a radio instead so that you don't have to worry when you do get lost.

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