TX RX Systems, Inc. Notch-Pseudo Band Pass Duplexer-NOTCH-PSEUDO BP DPLX 144-174 1.5 MIN SEP (TX LOW)
The TX RX Systems, Inc. 30-37-04A is a Notch-Pseudo Band Pass Duplexer designed for use in the VHF frequency range of 144-174 MHz. This duplexer features a minimum frequency separation of 1.5 MHz (TX Low) and is engineered to provide high isolation between transmit and receive paths, enabling simultaneous operation on a single antenna. The unit utilizes a combination of notch and band pass filtering techniques to achieve superior selectivity and minimal insertion loss. It is suitable for demanding land mobile radio applications where close frequency spacing and reliable performance are required. The 30-37-04A is built with robust components to ensure long-term stability and consistent operation in professional communication systems.
