Channel Settings · Menu 6
TX CTCSS tone — continuous sub-audible tone transmitted during PTT, typically required to access repeaters.
MENU on the radio to open the menu.6: T-CTCSS.MENU again to enter the setting.MENU to save, or EXIT to cancel.CHL Name— Channel name — the label displayed for the current memory channelRX Frequency— Receive frequency for the current VFO or channelTX Frequency— Transmit frequency for the current VFO or channelR-CTCSS— RX CTCSS tone — squelch only opens when this analog sub-audible tone is detected on the incoming signalR-DCS— RX DCS code — squelch only opens when this digital coded sub-audible squelch stream is detectedSee the full RT-900 menu reference for all menu items.