... ---470MHZ) is suit for repeater base station,transmitter,etc. UHF Duplexer filter we're 10 years two way radio and power ... ,always ready to be your sincere partner. High quality UHF duplexer filter,compact structureFrequencey:403---470MHZSuit for repeater base station,transmitter ... ,etc.the frequency can be adjusted to your requirement UHF Duplexer filter