Dear K. Phatanapong
Now we've problem about unworkable frequency of walkie talkie ch-7(ENG) that we cannot use this channel in my office.
I've just tested another frequency at 471.025 Mhz and this 471.025 is workable, good and clear sound.
So May it possible to change channel-7 to be at 471.025 Mhz? please consider my request.
Best Regards
Withit W,