The WVX-382M392-5a810 from Wevercomm is a RF Duplexer with Frequency 380 to 385 MHz / 390 to 395 MHz, Band 1 380 to 385 MHz, Band 2 390 to 395 MHz, Power 5 W, Insertion Loss 3.5 dB. Tags: Ceramic, Surface Mount. More details for WVX-382M392-5a810 can be seen below.