At 10:53 PM 10/23/2006, Mike McCarthy, W1NR wrote:
>See page 104 of the ProIII manual for an external voice keyer interface you
>can build that plugs into the microphone connector. I built one into a
>small box that also interfaces my Heil Proset and footswitch to the
>microphone connector. Just be sure to use a blocking capacitor (1uF
>tantalum) in the microphone line as there is 8VDC there. Bought what I
>needed at You-Do-It in Needham, MA. You "might" be able to get the switches
>and box at Rat Shack.
>
>I don't believe there is a way to control the internal DVK through software.
CT did support, at one time, a DVK keying interface that would
operate as N2GC asked.
You'd have to consult the CT manual for details on the LPT port pins
involved, and a sample circuit for keying a NelTek DVK.
73 - Jim AD1C
--
Jim Reisert AD1C, 7 Charlemont Court, North Chelmsford, MA 01863
USA +978-251-9933, <jjreisert@alum.mit.edu>, http://www.ad1c.us
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