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Radio systems are conveniently used for commercial as well as requirements. These cost-effective products present an excellent communication solution. Conventional radios focus on single rf. However with the development of technology, portable radios having many channels can be found with a channel selector inside the user interface. To avoid interloping of signals, frequency regulator board will allocate a channel with particular frequency for a specific organization. Another kind of portable radio system is the trunked radio. This gadget runs using pre-programmed
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