WishRing UHF 380-512MHz 30W DUPLEXER for Two Way Radio repeater N/M/BNC connector 30W RF power Handling (if you need more powerful please contact me first) Minimum Tx and Rx frequency difference: UHF 4Mhz Maximum Tx and Rx frequency difference: UHF 20Mhz Easy to build your repeater, Support Frequency: 380-512MHz Free Frequency Tuning. Please contact us about the high/low frequency and connector type after payment, the default connector type is N female, and we will provide adapter if you need M Jack(SO 239) or BNC connector type.