MOTOROLA RADIO FREQUENCY SYSTEMS DUPLEXER, PART # RFE4000, TUNABLE 400-500MHZ FREQUENCY BAND Tunable for 400-500 MHZ Frequency Band, Channel Spacing is 5-7 MHZ. Good Condition, but one of the tuning rods is damaged (missing a piece). Will need to tune it manually. This Duplexer is Tuned right now for TX 451.8125 MHz and RX 456.8125 MHz.
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