Backpack scatter communication device

The utility model discloses a knapsack scatter communication device, which relates to a low capacity portable scatter communication device in the communication field. The utility model is composed of a voice transmitting and receiving appliance, a combined antenna, a voice codec, an auxiliary multiplexer-demultiplexer, a transmitting receiver module, a duplexer, a modulator, a demodulator, an intermediate amplifying unit, a power supply and other components. The utility model uses a modem for realizing the goal of scatter communication, wherein the modem of linear frequency modulation signals and in-band quadruple frequency diversity signal forms has strong capability of single-frequency interference resistance and channel fading resistance. The utility model also has the advantages of high integration degree, portability, miniaturization, convenient operation, stable and reliable performance, good maneuverable capability, etc. The utility model is especially suitable for being used as a scatter communication device carried by a single person for communication in low capacity scatter communication systems.