Steve, the commands do tend to work across radios, at least to some degree. I
wrote a BASIC program to give me 570 info and have found that it works to
greater or lesser degrees with Kenwood rigs older than the 570. I have not
tried it with my 2000 yet.
Tom
Tom Brennan KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html