Icom IC-400PRO Instruction Manual page 41

DUP/PRI KEY
➥ Push to toggle the transmit frequency mode between
duplex and simplex.
• Duplex: The set TX frequency is used for the transmission.
• Simplex: The set RX frequency is used for the transmission.
➥ Push for 1 sec. to set the selected channel to priority or
normal.
➥ Priority channel is used for group or priority scan.
CONT/SGL KEY
Push to toggle the 5tone mute activity CONT (Continuous
Tone) and SGL (Single Tone).
PROGRAMMABLE FUNCTION KEYS
8
8
36