VX-180 On Duty option
I have a VX-180 VHF radio that has a menu option of on/off duty. My problem is that it's grayed out, so onlu OFF duty is an option. Was this a firmware change during the life of the radio? I believe mine is a very old radio and probably a very old firmware version. Was this added to the programming software at some point after a firmware update? I don't see anywhere in the software, when I read the radio, what the firmware version is. How can I tell....some combination of keys at turn on?