[WriteLog] Dual Transmit on RTTY on a single radio

[BOB (AK6R)]

Don - a question on your setup.

Do you run a comm port for the PK232 TNC and a comm port for the FSK keying
and then tie the two FSK lines together?  I think that is what you imply.

If I understand you correct you need 4 commports:

Comm1 for radio left control
Comm2 for radio right control
Comm3 for Radio left FSK keying
Comm4 for Radio left PK232

For the DXP38 and another sound and the right radio wouldn't you need

Comm5 for the Right radio keying
Comm6 for the DXP38

Maybe I have too many comm ports, but I don't understand your configuration.
Please enlighten me (or is that a competetive secret?)

Bob, AK6R

----- Original Message -----
From: "Don Hill AA5AU" <aa5au@bellsouth.net>
To: "WriteLog Reflector" <Writelog@contesting.com>
Sent: Sunday, April 29, 2001 7:32 PM
Subject: [WriteLog] Dual Transmit on RTTY on a single radio


>
> I've had this in mind for some time and didn't know if it would
> work until Jon, K1US, told me he already tried it.
>
> Even though the SP RVG RTTY contest was pretty much a bust
> this past weekend, I was able to successfully test my dual transmit
> setup in WriteLog on a single radio.
>
> I have been using dual receive on the same radio for over a year and
> now I can transmit from either of the RTTYrite windows I have
> open on the same radio using FSK.
>
> My setup is a soundboard and FSK transmit from a COM port running
> in parallel with the FSK output of a PK232.  The two FSK lines are
> simply tied together with a Y connector at the FSK input of one of
> my Kenwood TS870 transceivers.
>
> Now, when a call highlights in either of the RTTYrite windows I can
> click on it and transmit from that window.  This is sweet indeed!  And
> what's even sweeter is now that RTTYrite has the capabilities of splitting
> the window between regular and wideband decode when using a soundcard,
> I can actually click a callsign from either of three windows!  I suppose
if
> you had a big enough monitor you could run multiple TNC/Soundboard
> combinations with the capability of transmitting from any window by
> simply tying all the FSK lines together, but that may be pushing the
envelope
> a little farther than actually needed.  The limit, of course, would be
four.
>
> Something else that I found out that Jon told me about was setting
> "rig on COMMx" in both entry windows to the same port and that
> works also.  In one of the entry windows, the frequency display does
> not change as you move your dial but the QSO is logged on the correct
> frequency anyway.  It also works when you put a call in the bandmap using
> either the search and pounce memory window or %B in a buffer despite
> the display not showing the correct frequency.
>
> I have an extra COM port in my other computer and hope to make the
> cable and do the same thing on the 15/40 meter radio using a sound
card/COM
> port and a DXP38 for both transmit and receive of my other TS870.
>
> Others may already be doing this.  It's a neat trick that I can confirm
works
> and works well with the TS870.  Others will have to test at their own
risk.  I
> was afraid of smoking something when I tied the FSK lines together but it
> didn't.  FSK is simply off/on (open/short) keying so it's understandable
that
> it would work.  See you in the ARI test.
>
> 73, Don AA5AU
> http://www.geocities.com/aa5au/
>
>
>
>
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