[aprssig] APRSTT Callsign Encoder (for HT memory)

[david at retroscape.com]

Howdy, all.

I put together a simple web page to translate your callsign and selected
overlay into the DTMF sequence (with checksum) you'd store in your HT's
memory using Bob's two-key method. Thought it might save some folks a few
minutes' effort.

http://www.retroscape.com/aprstt/

73,

--David, K3PO