Specifications

3.12 TX Mode Selection
Turn on the dual band standby. Suppose you use Frequency A as main channel, but receiving
signals from Frequency B , you can set the radio to answer on Frequency A ,or on frequency B.
1. Press [MENU],  appears, next line is blank. Then press [UP] 

2. Press [MENU] to enter into setting, first line shows  next line shows the
status.
3. Press [UP]  or 
4. Press [MENU] to confirm storing and return, or press [*/BAND] to exit without changes.
Note:
  if you like to answer a call on the present frequency directly.
  , no matter what signals radio receives from any channels, the radio
will always answer only on the Main Frequency .
3.13 PRI SET (Priority channel)
1. Press [MENU], 
2. Press [MENU] to enter into setting ,  next line shows the status.
3. Press [UP] or [DOWN] to select number 01-99 as a priority channel.
4. Press [MENU] to confirm storing and return,or press [*/BAND] to exit without changes.
Note: 01-99 are channel numbers.