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Re: Yaesu 847, computer doppler control and TNC?


Don't know about Wisp yet - have been too busy with other satellites to get 
to digital modes. Someday.

But the FT847 requires a "null modem" cable and a dedicated port for 
control. I am using a USB add-on serial port for my TNCs, etc.

I do doppler correction of my FT847 using a Visual Basic program I wrote 
with Range Rate information coming from Nova for Windows. If you have been 
following my saga recently, I finally tracked the S band beacon of UO-11 
for two passes yesterday with the beacon signal staying in the downlink 
passband doppler corrected the whole pass.

The FT847 seems rather slow in response if you are trying to poll the rig 
for frequency readout. I gave up on that and tune with the mouse only. 
Which is ok, since I now can sit across the room and control the FT847 and 
tune the satellites remotely from my HF operating position.

Jerry, W6IHG

At 07:38 AM 6/28/01 -0400, Dale Coleman wrote:
>Hi all, after putting off buying a rig for satellite operations for a long 
>time I have finally decided the Yaesu 847 is my next purchase.
>Anyway, I was curious about the possibility of using a laptop computer 
>with one serial port to control the Doppler shift with WiSP?
>And run my TNC3S at the same time?  Anybody know if this can be done? What 
>are the pin assignments for the serial cable?
>I have not bought the 847 yet and don't have the manual.
>Thanks, Dale kf4sir
>Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
>To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

Dr. Jerry R. Pixton, PIXOS Designs LLC

Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org