Tuning · Menu 42
VFO step size — the increment when tuning up/down with arrows.
MENU on the radio to open the menu.42: Freq Step.MENU again to enter the setting.MENU to save, or EXIT to cancel.Busy Lockout— Busy Channel Lockout — prevents TX when a signal is already present on the RX frequencySide Tone— Transmit side tone format for MDC1200 PTT signallingSee the full RT-900 menu reference for all menu items.