[TRLog] SO2R CW Hardware Configuration

David O Hachadorian k6ll@juno.com
Wed, 26 Sep 2001 06:51:37 +0000

On Wed, 26 Sep 2001 08:49:15 -0400 "Lee Hiers" <aa4ga@contesting.com>

> with TR, here's how I (and I think most) folks set it up:
> LPT1 - use for paddle input and sending CW to rig 1
> LPT2 - use for sending CW to rig 2
> COM1 - radio control rig 1
> COM2 - radio control rig 2

Here's how I do it:

LPT1 - paddle input and A/B relay (switches merged mike/voicekeyer audio)
COM1 - rig 1 radio control and cw keying
COM2 - rig 2 radio control and cw keying

No ptt, all vox.

When using the LPT port for both of those functions, you need
a 12 volt wall wart (for the relay) and a 5 volt regulator
for the paddle pull-ups. The regulator is just a resistor/5V zener
off the 12v wall wart.

I had RF problems when using LPT cw keying, but I never tried
an optoisolator or relay, just an npn transistor. Since you
need two com ports anyway for rig control, it was just as easy
to do the cw keying on the same com ports. The com ports are
more immune to RF for some reason.


Dave Hachadorian, K6LL
Big Bear Lake, CA

FAQ on WWW:               http://www.contesting.com/FAQ/trlog
Submissions:              trlog@contesting.com
Administrative requests:  trlog-REQUEST@contesting.com
Problems:                 owner-trlog@contesting.com
Feature Wishlist:	  http://web.jzap.com/n6tr/trwish.html