Oui.
Extrait du manuel:
"[i]Select Mode
Three modes (1) double channel mode…
- Double channel mode
Turn off the power. Hold down ENTER and turn on the power simultaneously. The radio can either enter or exit the double channel mode.
When you enter this mode, you will see either A channel prefix or B channel prefix on display.
A prefix indicates ACH-XXX channel can both receive and transmit while the other channel (with no prefix) CH-ZZZ can receive only.
B prefix indicates BCH-ZZZ channel can both receive and transmit while the other channel (with no prefix) CH-XXX can receive only.
CH-XXX and CH-ZZZ channels can be switched by pressing MENU + [PTT][/i]"
Au passage, j’ai amélioré la version anglaise faite par les chinois 
