[amsat-bb] Operating SSB sats

Thu Feb 7 12:40:08 UTC 2019

Good morning all,
One thing that I have noticed with trying to tune in a qso or even tune
myself so that I can even find myself on the downlink is not easy some
days.  If I use the rit then sometimes I loose the other party on there or
they can not tune up to me very well.  One thing that I have noticed
thinking about this if I turn the rit on and use that then turn the RIT off
and then try to tune the xmit freq I see that the XIT is also changed to
the same amount as the RIT control.
So having found this and trying to work with SatPC32 trying to tune using
the cat control section I am not having very good luck somedays getting
things tuned up.  I don't try to do these at the same time, I work with one
or the other, just have not found a good happy medium yet for tuning in the
different ones.
Now I am thinking that I might want to reset all back to square one with
the radio again and see what happens with the RIT and XIT if they track
together or not if I do a full reset of the radio.
The rig is the TS2000X, it took sometime getting it to work with Satpc32
and now I know where I made the mistake on the basic setup so that I can
get things to a working point with the software for tracking again.  Just
seeing that the RIT control and the XIT track together even thou they are
not on together that I know of when I try to work things.
This I only found this week.  So any thoughts on this?

Thank you.

Jim

On Wed, Feb 6, 2019 at 11:36 PM Mike Sprenger <mikesprenger at gmail.com>
wrote:

> Great job
>
> Im going to contradict myself.  Don’t use the RIT...(then maybe use the
> RIT)
>
> Hopefully your RIT is off when you adjust your uplink in Satpc32 to line
> up and match the pitch of your voice.
>
> If I find that I have tuned to someone calling CQ or in QSO - when i call
> them ——> if they move, yet I can understand, I will accept the pitch
> difference and NOT touch the main tuning dial for that round of the QSO so
> things stay constant for the other station
>
> If we go another QSO round and things are still about the same amount of
> frequency offset, I’ll just compensate slightly with my RIT.
>
> If you’re within 300hz I’d say you’re doing well, and touching up with RIT
> is well within reason.
>
> Like drew suggests- carry on.
>
> Thanks,
> Mike
>
> Sent from my iPhone
>
> > On Feb 6, 2019, at 2:01 PM, Andrew Glasbrenner <
> glasbrenner at mindspring.com> wrote:
> >
> > So just diddle the RIT a little and carry on?
> >
> > 73, Drew KO4MA
> >
> > -----Original Message-----
> > From: AMSAT-BB <amsat-bb-bounces at amsat.org> On Behalf Of Stephen E.
> Belter
> > Sent: Wednesday, February 06, 2019 1:43 PM
> > To: k6vug at sbcglobal.net
> > Cc: AMSAT BB <amsat-bb at amsat.org>; Paul Stoetzer <n8hm at arrl.net>
> > Subject: Re: [amsat-bb] Operating SSB sats
> >
> > Just my guess:  If you’re tuning so that you sound good to yourself, you
> may sound a little high (or low) to someone else.  Also, since most people
> you’re operating don’t know what you sound like in person (James Earle
> Jones or Pee Wee Hermon).
> >
> > You can check your tuning by sending a tone and zero-bearing with the
> received tone.
> >
> > Or experiment with adjusting your received signal so that you’re a
> little low (or high) with what sounds best to you.  Then see if you’re
> still chasing each other up (or down) the band.
> >
> > 73, Steve N9IP
> > --
> > Steve Belter, seb at wintek.com
> >
> >
> >> On Feb 6, 2019, at 1:31 PM, "k6vug at sbcglobal.net" <k6vug at sbcglobal.net>
> wrote:
> >>
> >> That is exactly right, with the fully computer controlled setup I can
> move the downlink (RX) up and down the pass band looking for callers and
> not have to touch the TX frequency as it is managed by the software and can
> hear my own voice with a steady tone quite well.
> >> - Umesh
> >>
> >>
> >>
> >>   On Wednesday, February 6, 2019, 9:44:56 AM PST, Paul Stoetzer <
> n8hm at arrl.net> wrote:
> >>
> >> Umesh,
> >> If you can tune around and always hear your own downlink on the correct
> frequency, then you are doing everything right.
> >> 73,
> >> Paul, N8HM
> >> On Wed, Feb 6, 2019 at 12:42 PM k6vug at sbcglobal.net <
> k6vug at sbcglobal.net> wrote:
> >>
> >> Good Morning All,
> >> I'd like to understand something that seems to be happening with SSB
> birds.
> >>
> >> I realize that they are two kinds of operators - one that has a
> >> computer controlled station and one that tunes manually, and I respect
> >> both types.  The following observation is about two computer
> >> controlled stations working via a SSB satellite -
> >>
> >> (a) My station is computer controlled (SatPC32 or HRD) and can hear
> myself on the downlink throughout the pass.  I can also go up or down the
> pass band and still hear myself without needing to retune the uplink.   It
> is pretty rock solid, almost like HF operation.
> >>
> >> (b) Sometimes I hear a station calling CQ and it remains on the same
> frequency during successive CQs, so I'm guessing their station is also
> computer controlled.  I can tune in and stay on their calling frequency.
> >>
> >> (c) However, when I can respond, it seems they have to tune their
> downlink a bit to hear me well.  So when they come back to my response,
> they are a bit off-frequency (about 300Hz) and sound like Mickey Mouse,
> until I retune the downlink to hear them well again.  This keeps happening
> throughout the QSO.
> >>
> >> (d) This "drifting" happens only with some stations calling CQ and not
> everyone.
> >>
> >> Considering both stations are computer controlled at each end, I'm
> trying to understand if I'm doing anything wrong/incorrect.  Learning to
> operate SSB sats has been humbling as well as exciting, I'd appreciate any
> pointers for this situation. Thanks in advance.
> >>
> >>
> >> 73!
> >> Umesh
> >> k6vug
> >>
> >>
> >> _______________________________________________
> >> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> >> to all interested persons worldwide without requiring membership.
> >> Opinions expressed are solely those of the author, and do not reflect
> the official views of AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >>
> >>
> >> _______________________________________________
> >> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> >> to all interested persons worldwide without requiring membership.
> >> Opinions expressed are solely those of the author, and do not reflect
> the official views of AMSAT-NA.
> >> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> > _______________________________________________
> > Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
> > _______________________________________________
> > Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> > to all interested persons worldwide without requiring membership.
> Opinions expressed
> > are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> > Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>