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OT? K3s - WSJTX - MMTTY conundrum

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Gary Smith-2

OT? K3s - WSJTX - MMTTY conundrum

Hard to enter a short subject that is
complete...

Have a K3s using USB to the computer & the
internal card for digital modes.

I wanted to work a few Q's in the RTTY
contest and have been using WSJT-X for FT8
contacts.

In the K3s WSJTX requires Data A for FT8
and in MMTTY it requires AFSK A (45BPS is
normal).

I went to use MMTTY after using WSJTX and
with an excellent scope copy of the RTTY
signals, gibberish is on the screen. I
tried Reverse; REV in MMTTY and tried ALT
in the K3 and no benefit. I tried so many
things to decode in MMTTY but nothing
worked until some random change in a K3s
setting worked and then perfect copy as
usual.

I later clicked on WSJT to make a Q, the
radio complied and switched to the
settings for WSJT and when I went back to
MMTTY, the copy was again gibberish. I
don't recall what it was I did to set the
K3s back so MMTTY can decode RTTY I did
return it to AFSK A 45 but nothing
decodes.

It was a K3 setting that made the
difference but I have no idea what it was
I chanced on. anyone work out this issue
yet when switching from WSJTX to MMTTY &
the change in settings then required in
the K3s?

Thanks & 73,

Gary
KA1J
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Don Wilhelm

Re: OT? K3s - WSJTX - MMTTY conundrum

Gary,

What bandwidth are you using in AFSK A. Normally it defaults to 400 to
500 Hz, but your switch from DATA A to AFSK A may be confusing it.
I cannot speak to interaction between WSJTX and MMTTY, but you may find
something there in the switchover.

Normally in MMTTY, you tune to a specific signal where in WSJTX you are
setting to a wide bandwidth to view the waterfall of all signals in the
passband.

This is only a guess. Some control programs send commands to the K3 in
the wrong order - changing modes before making a band change is one
instance - that does not work with the K3/K3S.

73,
Don W3FPR

On 9/17/2017 3:37 PM, Gary Smith wrote:

> Hard to enter a short subject that is
> complete...
>
> Have a K3s using USB to the computer & the
> internal card for digital modes.
>
> I wanted to work a few Q's in the RTTY
> contest and have been using WSJT-X for FT8
> contacts.
>
> In the K3s WSJTX requires Data A for FT8
> and in MMTTY it requires AFSK A (45BPS is
> normal).
>
> I went to use MMTTY after using WSJTX and
> with an excellent scope copy of the RTTY
> signals, gibberish is on the screen. I
> tried Reverse; REV in MMTTY and tried ALT
> in the K3 and no benefit. I tried so many
> things to decode in MMTTY but nothing
> worked until some random change in a K3s
> setting worked and then perfect copy as
> usual.
>
> I later clicked on WSJT to make a Q, the
> radio complied and switched to the
> settings for WSJT and when I went back to
> MMTTY, the copy was again gibberish. I
> don't recall what it was I did to set the
> K3s back so MMTTY can decode RTTY I did
> return it to AFSK A 45 but nothing
> decodes.
>
> It was a K3 setting that made the
> difference but I have no idea what it was
> I chanced on. anyone work out this issue
> yet when switching from WSJTX to MMTTY &
> the change in settings then required in
> the K3s?
>

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Don Wilhelm

Re: OT? K3s - WSJTX - MMTTY conundrum

In reply to this post by Gary Smith-2

Gary,

One thing to check is when you change from WSJTX to MMTTY, does the K3
data mode change to AFSK A in LSB mode? If not, the software is to
blame. The sequence of commands (or lack of commands) sent to the K3
may be part of the problem.

You certainly can use DATA A for RTTY if you shift to the ALT sideband,
but the bandwidth will likely be set wide.

Where are you trying o decode? on the K3 or on MMTTY?

73,
Don W3FPR

On 9/17/2017 3:37 PM, Gary Smith wrote:

Wes Stewart-2

Re: OT? K3s - WSJTX - MMTTY conundrum

In reply to this post by Gary Smith-2

Make sure the pitch in the K3 matches MMTTY.

On 9/17/2017 12:37 PM, Gary Smith wrote:
> Hard to enter a short subject that is
> complete...
>

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Gary Smith-2

Re: OT? K3s - WSJTX - MMTTY conundrum

Don & Wes,

I'm stymied by what caused the problem.
Sometimes using N1MM with MMTTY there is a
bit of software change and PTT-KEY change
but never just running MMTTY alone with
the K3s. When I went to N1MM it was with
AFSK A and it was already in the data mode
as my last 20M Q was with WSJTX.
Everything seemed normal in every way
except garbage was what was being sent to
the screen.

Finally I tried to have the K3s decipher
by changing the DATA MD to FSK D. Now the
K3 was not deciphering either. Based on a
suggestion that mentioned on-off... I shut
down WSJT and MMTTY and retried and it
worked for decode on MMTTY. Why that would
have an effect on the K3s decoding I have
no idea.

I'll revisit the issue later this week,
there's a RTTY contest coming up but for
now while things are working, I'll enjoy
the air a bit & make a few more Qs. If I
find out anything helpful, I'll post that
here for anyone with the same issues,
later.

73 and thanks,

Gary
KA1J

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Joe DeVincentis

Re: OT? K3s - WSJTX - MMTTY conundrum

In reply to this post by Gary Smith-2

I was doing the exact same thing. I was done with my FT8 and wanted to check things out for this weekend’s contest. I could see lots of RTTY on the P3. So I tuned some of the stations with MTTY and no decode. I did eventually find one station that was decoding. It was a W7 station.

That meant something was working. Then, I changed baud rate - set it to 75 and now I could decode most of the RTTY traffic I was seeing (some of the weak ones or the 45 stations - not so much). The source of most of the RTTY I was seeing at the time was the BARTG Sprint 75 contest.

Maybe you ran into the same issue.

73.
Joe, KO8V

> On Sep 17, 2017, at 2:37 PM, Gary Smith <[hidden email]> wrote:
>
> Hard to enter a short subject that is
> complete...
>
> Have a K3s using USB to the computer & the
> internal card for digital modes.
>
> I wanted to work a few Q's in the RTTY
> contest and have been using WSJT-X for FT8
> contacts.
>
> In the K3s WSJTX requires Data A for FT8
> and in MMTTY it requires AFSK A (45BPS is
> normal).
>
> I went to use MMTTY after using WSJTX and
> with an excellent scope copy of the RTTY
> signals, gibberish is on the screen. I
> tried Reverse; REV in MMTTY and tried ALT
> in the K3 and no benefit. I tried so many
> things to decode in MMTTY but nothing
> worked until some random change in a K3s
> setting worked and then perfect copy as
> usual.
>
> I later clicked on WSJT to make a Q, the
> radio complied and switched to the
> settings for WSJT and when I went back to
> MMTTY, the copy was again gibberish. I
> don't recall what it was I did to set the
> K3s back so MMTTY can decode RTTY I did
> return it to AFSK A 45 but nothing
> decodes.
>
> It was a K3 setting that made the
> difference but I have no idea what it was
> I chanced on. anyone work out this issue
> yet when switching from WSJTX to MMTTY &
> the change in settings then required in
> the K3s?
>
> Thanks & 73,
>
> Gary
> KA1J

Gary Smith-2

Re: OT? K3s - WSJTX - MMTTY conundrum

Joe,

I bet that was it. Bob, W9BF emailed me
earlier with the same info. I too was able
to decode a W7, think it was W7DX, he was
in there till the end. Maybe he was
working a different contest, he was making
Q's I could copy.

I'm getting to the age where Senior
moments happen but I thought I did
everything right and it wasn't working.
Now I feel better. A celebratory beer is
in order!

Thanks & 73,

Gary
KA1J

> I was doing the exact same thing. I was done with my FT8 and wanted
> to check things out for this weekend´s contest. I could see lots of
> RTTY on the P3. So I tuned some of the stations with MTTY and no
> decode. I did eventually find one station that was decoding. It was
> a W7 station.
>
> That meant something was working. Then, I changed baud rate - set it
> to 75 and now I could decode most of the RTTY traffic I was seeing
> (some of the weak ones or the 45 stations - not so much). The source
> of most of the RTTY I was seeing at the time was the BARTG Sprint 75
> contest.
>
> Maybe you ran into the same issue.
>
> 73.
> Joe, KO8V
>
> > On Sep 17, 2017, at 2:37 PM, Gary Smith <[hidden email]> wrote:
> >
> > Hard to enter a short subject that is
> > complete...
> >
> > Have a K3s using USB to the computer & the
> > internal card for digital modes.
> >
> > I wanted to work a few Q's in the RTTY
> > contest and have been using WSJT-X for FT8
> > contacts.
> >
> > In the K3s WSJTX requires Data A for FT8
> > and in MMTTY it requires AFSK A (45BPS is
> > normal).
> >
> > I went to use MMTTY after using WSJTX and
> > with an excellent scope copy of the RTTY
> > signals, gibberish is on the screen. I
> > tried Reverse; REV in MMTTY and tried ALT
> > in the K3 and no benefit. I tried so many
> > things to decode in MMTTY but nothing
> > worked until some random change in a K3s
> > setting worked and then perfect copy as
> > usual.
> >
> > I later clicked on WSJT to make a Q, the
> > radio complied and switched to the
> > settings for WSJT and when I went back to
> > MMTTY, the copy was again gibberish. I
> > don't recall what it was I did to set the
> > K3s back so MMTTY can decode RTTY I did
> > return it to AFSK A 45 but nothing
> > decodes.
> >
> > It was a K3 setting that made the
> > difference but I have no idea what it was
> > I chanced on. anyone work out this issue
> > yet when switching from WSJTX to MMTTY &
> > the change in settings then required in
> > the K3s?
> >
> > Thanks & 73,
> >
> > Gary
> > KA1J
> ______________________________________________________________
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> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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