To modify ur TS430 to transmit on MARS and CAP frequencies: Easy method -- 1. Find D 39 and D 40 on the RF board 2. Lift one end of both off board. Alternate method: 1. Disconnect PIN 2 of connector 10 (TXI) on RF board. 2. Remove Q 22 on RD board. Either of the above modifications gives 1500 kc to 30 mhz transmit.