It is a well-known fact that poor coverage is a fairly common problem of the two way radio systems,which can be due to either large obstructions or simply distance between radios. Smart two way radio repeater is a type of base station which can be used to improve the coverage of a radio system. So how does a repeater work? It works by receiving a radio signal on one frequency and simultaneously re-transmitting the signal on another frequency. Below are some detailed information.
For
instance,a portable radio transmits on 1 and receives on 2. The
repeater picks up the transmission on 1 and simultaneously re-transmits
on 2.Others radio users hear the transmission on 2 and reply on 1.This
channel splitting is done because a two way radio can't transmit and
receive on the same frequency at the same time.Think about it like
this... A signal on the receiver causes the transmitter to key up, which
transmits on the same frequency as the receiver, which receives the
signal and continues to key up the transmitter... It would effectively
lock up.
Repeaters are useful in extending radio range. If two
users are too far apart to receive each other, a repeater located
between them would effectively, hop or bounce the signal.Repeaters also
work well at overcoming "line of sight" limitations. If two users are on
either side of a mountain, the radio signal cannot penetrate the
mountain and they are unable to communicate. Now install a repeater at
the top of the mountain. Both radios can now see the repeater's
antenna... and communicate. The height of the repeater would also give
the added bonus of increased range.
Repeaters do not necessarily
have to cover a large area. If there is just a small pocket of poor
coverage within a larger system, a low power repeater could be used just
to "fill in" the area. Repeaters come in types ranging from just a
couple of watts up to 25 watts. Invariably, the repeater transmit power
should match that of the mobiles or portables. If the repeater transmits
at 25 watts and the portables are rated at 5 watts, the portables can
get into a situation where they can hear the repeater, but are unable to
reply due to the power difference.
Nowadays,two way radio
repeaters are used widely in many aspects. From the above,we can also
know some specific usages of the two way radio repeaters. When it comes
to choosing repeaters,you sholuld be very careful. We mainly specialize
in multi-style, multi-model and multi-function two way radio,such as digital two way radio, professional walkie talkie, repeater, antenna,other related accessories etc. Find more at chierda.