The JFCD0703T0803NF from JQL Electronics is a RF Duplexer with Frequency 703 to 803 MHz, Band 1 703 to 748 MHz, Band 2 758 to 803 MHz, Power 40 W, Insertion Loss 1.5 dB. Tags: Module with Connectors. More details for JFCD0703T0803NF can be seen below.