I have recently released a program for generating Bearcat 101 switch codes.
It has a few other goodies as well. Details are at
http://members.aol.com/xfire905/bcprog.htm.

And now, to prove that I'm actually here to have a conversation, not just
to plug my little program [which, I absolutely swear, I will NOT do forty
times a week]... Who else in here has a BC101? I was given one back in
February by the original owner, who bought it just after it was first
introduced in the mid-1970's. Said he didn't need it any more. Well, I'm
sure having fun with it! Interesting old unit, this one... I got a
photocopy of the manual and code book, but you BC101 owners know how
incomplete that book is, so I went to work on writing a code generator for
myself because I knew I'd need it.

I'd like to know if any of you have any real experience with programming
out-of-band frequencies. I'm sure the receive sensitivity is going to drop
off outside of the published bands, but how sharply? Just how far
out-of-band can the BC101 go? I REALLY doubt it would actually go all the
way down to 10.745 MHz, but that's the lowest frequency represented by the
lowest possible switch sequence [all switches UP in the low band]. Might
it be possible to pick up, say, the 10m ham band - assuming, of course,
there are FM signals? That's not too far below the 30 MHz given in the
specs.