Probably the best of the lot is the PIC-CON. If you
connect it to an HT you can even program it using
touch-tones through the receiver.
www.byonics.comFor ARDF I use the Montreal Controller, which uses a
PIC processor and DIP switches to set the number of
transmitters, etc. Much more limited in function, but
then when I'm putting together a set of 6 transmitters
the cost savings can be significant!
www.qsl.net/ve2emm/index.html