[GreenKeys] tapping ST-6 for RS232

[Jim Haynes]

On Mon, 26 Jan 2009, k0bx at arrl.net wrote:

> Back then, most commercial made ham transceiver did not have the ability
> to operate FSK.  So we used AFSK on both HF (LSB) or VHF.
>
Waaaaay back then we didn't have transceivers; we had separate 
transmitters and receivers.  And transmitters didn't do SSB, so we
had to add a "diode modulator" to the VFO to get FSK.  But
we did use AFSK on VHF equipment, first AM, then FM.

Jim W6JVE