Thanks to everyone that responded.
For those that have been on the list for years this thread may be a dull rerun,
but as a newbie, the information is useful.
From everyones responses, it appears that indeed there are currently two
conventions:
1. Full Doppler CAT tuning
2. Manually tuning the
John,
I meant to mention a nice page discussing Doppler shift. It explains many
of the questions/comments/rants brought up about Doppler shifts and
corrections:
http://www.qsl.net/vk3jed/doppler.html
It gives a few graphic illustrations of how Doppler shift varies depending
on the pass, and
In a perfect world, everyone would be using full doppler control via
computer. As we can see from this discussion, it's not a perfect world.
During the time that I had the equipment to operate the linear birds I
found hooking up in a QSO with another station who was using full
doppler tuning
At 04:45 AM 6/2/2010, Alan P. Biddle wrote:
John,
I meant to mention a nice page discussing Doppler shift. It explains many
of the questions/comments/rants brought up about Doppler shifts and
corrections:
http://www.qsl.net/vk3jed/doppler.html
Please use the official version
At 05:53 AM 6/2/2010, Michael Tondee wrote:
was fun. Not so if I came upon a station who was using manual tuning
while I was trying to let my computer do the work. I had to chase him
all over the passband and often lost stations completely that way. I
didn't fare much better with manual tuning. I
At 01:18 PM 6/2/2010, Greg D. wrote:
One problem with the Yaesu 736R is that when the rig is under
computer control you can't grab the tuning knob and hunt around the
passband for someone to talk to. Tuning directed by computer is
agonizingly slow and tedious, taking about a second per
Date: Wed, 2 Jun 2010 07:36:40 +1000
To: mat...@netcommander.com; amsat-bb@amsat.org
From: vk3...@gmail.com
Subject: [amsat-bb] Re: Doppler Tuning Convention Question (summary)
At 05:53 AM 6/2/2010, Michael Tondee wrote:
When I can finally afford the V/U unit for my new Flex
That does make things a pain. It's a pity that the radio can't talk
back to the computer, which would have been a nice addition.
The true pity is that the rig IS physically capable of talking to the computer,
but the only thing it knows how to say is what the status of the Squelch is
