Mark, since you've got that many questions let me recommend getting a recorded
manual from Handi-Hams. I've got it and they tell you about all the buttons.
There are a couple settings you have to use on the 202 for tones etc. and the
function key creates multiple functions for several keys. The manual is a
single tape from Handi-Hams.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html