The 19180 Series from Microwave Filter is a range of compact mobile radio duplexers that operate from 70 to 85 MHz. They have an insertion loss of 1.2 dB, a mutual isolation of 75 dB and a VSWR of 1.5:1. These duplexers can handle up to 50 W of power and are designed with a 4 MHz separation between the low frequency and the high frequency. They are ideal for use in mobile or basestation applications. They measure 6.20 x 1.25 x 4.00 inch and are available with N Type or BNC &ndash Female connectors.