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Lower insertion loss than band pass types for same TX-RX spacings. ♢ Since pass band is broad, little help is provided in receiver front end selectivity except Replaced broken/missing N-connector and missing tuning slug and retaining nut. Tuned to 458.000/463.000 MHz frequency pair and tested following repairs. 2019-03 Note that the diplexer / triplexer / quadplexer device is not field Many folks that take a duplexer that is tuned on the bench with 6 dB pads on eachINSTRUCTION BOOK. FOR. PD-526. DUPLEXER. 406-470 MHz. 470-512 MHz. SERIAL NO. 26800. TRANSMIT. 146.865mhz. RECEIVE 146.265m4z. CELWAVE R. F. INC.