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[WriteLog] SO2R with one LPT port

To: <writelog@contesting.com>
Subject: [WriteLog] SO2R with one LPT port
From: ric@kv1w.com (Ric Plummer)
Date: Mon, 8 Jan 2001 22:03:16 -0000
Chris
It's quite possible.
What you need to do is use the A/B line on that port to "steer" the CW ( and
PTT for that matter ) to the
desired radio. Works great. I used a Radio Shack DPDT relay to do both and
used a 2n2222 to drive it
from the A/B line. Don't forget the diode "backwards" across the relay or
your first switch will be you last
( for the 2n2222 that is ).
73, Ric KV1W

----- Original Message -----
From: "David Martin" <wl7ky@gci.net>
To: <writelog@contesting.com>
Sent: Monday, January 08, 2001 20:36
Subject: [WriteLog] SO2R with one LPT port


>
> Hi All,
> Is it possible to send CW to 2 rigs with one LPT port?  I will be using
> my laptop in NAQP CW and will be trying SO2R for the first time.  Maybe
> 1 printer port and 1 COM port?
> Thanks
> -Chris KL9A
> kl9a@qsl.net
> http://www.qsl.net/kl9a
>
>
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>


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