The RDUP-452.5-457.5M-462.5-467.5M-6935-5W-S-k from Raditek is a RF Duplexer with Frequency 452.5 to 457.5 MHz / 462.5 to 467.5 MHz, Band 1 452.5 to 457.5 MHz, Band 2 462.5 to 467.5 MHz, Power 5 W, Insertion Loss 3.2 dB. Tags: Surface Mount, Ceramic. More details for RDUP-452.5-457.5M-462.5-467.5M-6935-5W-S-k can be seen below.