handic 605 help pls

[mitch74]

Hi. i just brought a old boat and it has a handic 605 in it. it looks old and has some taggs clued to the top of it with numbers. (A 27.880 DIST) (B 27.860 SUP D) (C 27.900 C.GD) i know these are channels and the A is the distress one but what is the B and C one? can anyone help on this? cheers

 

[rustynswrail]

B is Supplementary Distress, C is Calling. General Duty

R