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ADF7020 communication distance issue

Question asked by pioneer.liu on Mar 7, 2014
Latest reply on Mar 7, 2014 by rbrennan

chip is ADF7020, operation frequency is 470MHz, transmit power is 1W, receive sensitivity is -108dBm, but communication distance is only 300-400m, selected Antenna is 470MHz., pls help analyze, in addition, if sensitivity is okay, if still need match impedance?

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