RTS DV-3400 Instruction Manual page 64

FUNCTIONS SETUP
channel mode. Under VFO mode, users can upward or downward
the frequency by frequency step.
1. Under standby state, Press
current value of frequency step are displayed on the LCD.
2. Press
five options: 5k, 6.25k, 10k, 12.5k and 25k.
3. Press [PF1] or [PF2] to exit.
NOTE:
This function is invalid under channel mode.
21
/ to select desired value. There are
repeatedly till "STP" icon and