Originally Posted by
megan
It is both, VHF 121.5, UHF 243, the military sets I'm familiar with the guard frequency was not one you could change, the frequencies have been ever thus, LB has explained the usage well.
That's funny, I remember the Guard freq being user-selectable and often set to "company" freq which then became the guarded freq. Thus the usage of the term. Must've been a different set to the ones you used.