Repeaters are often used to increase radio coverage over a defined area.  They receive a signal and, using a frequency converter, rebroadcast the same signal on a different center frequency.  They are found in all types of communication – telephony (both backhaul and mini base stations), data (e.g. WiFi, WiMax, etc.), broadcasting,  amateur radio, emergency communications, etc.  and are useful in environments where radio communications is difficult (urban canyons, mountainous regions, indoor environments, etc.).   Come to us with your special radio communication requirements.