The MD256N-1-1 from Sinclair consists of 6-cavity mobile duplexer with a passband from 136 to 148 MHz. The duplexer has a separation between the Tx and Rx frequency of 4.5 to 8 MHz. It has an insertion loss of less than 1.5 dB and an isolation of more than 80 dB. This duplexer can handle up to 50 W of power. It is available in a module that measures 6.05 x 7.03 x 1.25 inches with coaxial connectors. This duplexer is suitable for VHF and Aviation applications and allows bi-directional communication over a common antenna and are also ideal for applications that require a compact rugged unit, such as in vehicles, or where space is constrained.