WSJT FT8 TX not decoded using K3S TX - Rx ok

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WSJT FT8 TX not decoded using K3S TX - Rx ok

HP
Afire calling folks on ten who were running as much as +12 on Fri and Sat - and no answer
I called a friend across town - He sees the signal and it will not decode. While he was listening
he worked two stations on10 so his setup is working (K3S and Signalink)

I hooked up my K3 - Signalink - and it will not decode the K3S tones -decodes band signals just fine .
Makes no difference by band 80 or 10 the same and friend same on10 and 15 .
BTW the K3S decodes on air signals just fine.

This apparently happened in past week or so I do more listening than txing . Last FT8 qsos
in log were 5 /10 .

I uninstalled and re-installed WSJT -latest versions on both the K3 and K3S . No difference.

I went to earlier K3S config file - no difference.

Did an EEINT and still no difference-two different config files.

Makes no difference 5 watts,20 watts ,50 watts out of K3S. ,or 450 watts out of KPA . (all into dummy load on both xcvrs.)

Levels out of the computer are essentially same as always both rx and tx . Easy to get 4 bars ALC
with 5th flickering . Tones in monitor sound clean and looking at the monitor audio on scope they
are clean sine waves . The monitor signals look essentially the same on both the K3 and K3S.

Tried looking at recovered audio tones both ways - they look pretty much the same but hard to tell
dummy load to dummy load because of residual rx noise on the tones. Guess I could see if I could arrange to get
more signal.

Rig works on CW as always - dd not mess with SSB - Maybe I should look at two tone tomorrow --
or at least listen to it on SSB.

I restored computer W10Pro 64 bit to several updates ago and no change.
Rebooted computer - restarted programs . Clocks are within a tenth of a second.

I am out of ideas -other than to change the K3S over to using the Signalink instead of the USB/internal codec.
Guess I will do that later today since its 4 m.
Nuts.


Hank K7HP
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Re: WSJT FT8 TX not decoded using K3S TX - Rx ok

David Herring
Can you confirm that the K3S is actually in Data mode?

I seem to recall once in my distant past when I was new to digital modes that I had my K3 in lsb rather than usb or Data mode. No one decoded anything of mine in that instance.

73,
David - N5DCH

> On May 17, 2020, at 5:16 AM, HP <[hidden email]> wrote:
>
> Afire calling folks on ten who were running as much as +12 on Fri and Sat - and no answer
> I called a friend across town - He sees the signal and it will not decode. While he was listening
> he worked two stations on10 so his setup is working (K3S and Signalink)
>
> I hooked up my K3 - Signalink - and it will not decode the K3S tones -decodes band signals just fine .
> Makes no difference by band 80 or 10 the same and friend same on10 and 15 .
> BTW the K3S decodes on air signals just fine.
>
> This apparently happened in past week or so I do more listening than txing . Last FT8 qsos
> in log were 5 /10 .
>
> I uninstalled and re-installed WSJT -latest versions on both the K3 and K3S . No difference.
>
> I went to earlier K3S config file - no difference.
>
> Did an EEINT and still no difference-two different config files.
>
> Makes no difference 5 watts,20 watts ,50 watts out of K3S. ,or 450 watts out of KPA . (all into dummy load on both xcvrs.)
>
> Levels out of the computer are essentially same as always both rx and tx . Easy to get 4 bars ALC
> with 5th flickering . Tones in monitor sound clean and looking at the monitor audio on scope they
> are clean sine waves . The monitor signals look essentially the same on both the K3 and K3S.
>
> Tried looking at recovered audio tones both ways - they look pretty much the same but hard to tell
> dummy load to dummy load because of residual rx noise on the tones. Guess I could see if I could arrange to get
> more signal.
>
> Rig works on CW as always - dd not mess with SSB - Maybe I should look at two tone tomorrow --
> or at least listen to it on SSB.
>
> I restored computer W10Pro 64 bit to several updates ago and no change.
> Rebooted computer - restarted programs . Clocks are within a tenth of a second.
>
> I am out of ideas -other than to change the K3S over to using the Signalink instead of the USB/internal codec.
> Guess I will do that later today since its 4 m.
> Nuts.
>
>
> Hank K7HP
> ______________________________________________________________
> Elecraft mailing list
> 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
> Message delivered to [hidden email]

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Re: WSJT FT8 TX not decoded using K3S TX - Rx ok

Rick Bates, NK7I
Specifically Data A mode...


Rick NK7I


On 5/17/2020 6:15 AM, David Herring wrote:

> Can you confirm that the K3S is actually in Data mode?
>
> I seem to recall once in my distant past when I was new to digital modes that I had my K3 in lsb rather than usb or Data mode. No one decoded anything of mine in that instance.
>
> 73,
> David - N5DCH
>
>> On May 17, 2020, at 5:16 AM, HP <[hidden email]> wrote:
>>
>> Afire calling folks on ten who were running as much as +12 on Fri and Sat - and no answer
>> I called a friend across town - He sees the signal and it will not decode. While he was listening
>> he worked two stations on10 so his setup is working (K3S and Signalink)
>>
>> I hooked up my K3 - Signalink - and it will not decode the K3S tones -decodes band signals just fine .
>> Makes no difference by band 80 or 10 the same and friend same on10 and 15 .
>> BTW the K3S decodes on air signals just fine.
>>
>> This apparently happened in past week or so I do more listening than txing . Last FT8 qsos
>> in log were 5 /10 .
>>
>> I uninstalled and re-installed WSJT -latest versions on both the K3 and K3S . No difference.
>>
>> I went to earlier K3S config file - no difference.
>>
>> Did an EEINT and still no difference-two different config files.
>>
>> Makes no difference 5 watts,20 watts ,50 watts out of K3S. ,or 450 watts out of KPA . (all into dummy load on both xcvrs.)
>>
>> Levels out of the computer are essentially same as always both rx and tx . Easy to get 4 bars ALC
>> with 5th flickering . Tones in monitor sound clean and looking at the monitor audio on scope they
>> are clean sine waves . The monitor signals look essentially the same on both the K3 and K3S.
>>
>> Tried looking at recovered audio tones both ways - they look pretty much the same but hard to tell
>> dummy load to dummy load because of residual rx noise on the tones. Guess I could see if I could arrange to get
>> more signal.
>>
>> Rig works on CW as always - dd not mess with SSB - Maybe I should look at two tone tomorrow --
>> or at least listen to it on SSB.
>>
>> I restored computer W10Pro 64 bit to several updates ago and no change.
>> Rebooted computer - restarted programs . Clocks are within a tenth of a second.
>>
>> I am out of ideas -other than to change the K3S over to using the Signalink instead of the USB/internal codec.
>> Guess I will do that later today since its 4 m.
>> Nuts.
>>
>>
>> Hank K7HP
>> ______________________________________________________________
>> Elecraft mailing list
>> 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
>> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
> 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
> Message delivered to [hidden email]
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Re: WSJT FT8 TX not decoded using K3S TX - Rx ok

Barry LaZar
In reply to this post by HP
     Here's something that might help. FT8 only decodes in a certain time
slot. Make sure your computer is accessing an NTP server and get the
correct time. Win10 can be set to automatically to access time.nist.gov.
I spent a long time trying to get a ham buddy going the other day and
couldn't figure it out. Another buddy picked up on the fact that time
was not set correctly and he fixed it after which decodes started. I
missed that one. So, just get the correct time and I infer that should
fix your problem. You only need tro be seconds off to not work.

73,
Barry
K3NDM

------ Original Message ------
From: "HP" <[hidden email]>
To: [hidden email]
Sent: 5/17/2020 7:16:09 AM
Subject: [Elecraft] WSJT FT8 TX not decoded using K3S TX - Rx ok

>Afire calling folks on ten who were running as much as +12 on Fri and Sat - and no answer
>I called a friend across town - He sees the signal and it will not decode. While he was listening
>he worked two stations on10 so his setup is working (K3S and Signalink)
>
>I hooked up my K3 - Signalink - and it will not decode the K3S tones -decodes band signals just fine .
>Makes no difference by band 80 or 10 the same and friend same on10 and 15 .
>BTW the K3S decodes on air signals just fine.
>
>This apparently happened in past week or so I do more listening than txing . Last FT8 qsos
>in log were 5 /10 .
>
>I uninstalled and re-installed WSJT -latest versions on both the K3 and K3S . No difference.
>
>I went to earlier K3S config file - no difference.
>
>Did an EEINT and still no difference-two different config files.
>
>Makes no difference 5 watts,20 watts ,50 watts out of K3S. ,or 450 watts out of KPA . (all into dummy load on both xcvrs.)
>
>Levels out of the computer are essentially same as always both rx and tx . Easy to get 4 bars ALC
>with 5th flickering . Tones in monitor sound clean and looking at the monitor audio on scope they
>are clean sine waves . The monitor signals look essentially the same on both the K3 and K3S.
>
>Tried looking at recovered audio tones both ways - they look pretty much the same but hard to tell
>dummy load to dummy load because of residual rx noise on the tones. Guess I could see if I could arrange to get
>more signal.
>
>Rig works on CW as always - dd not mess with SSB - Maybe I should look at two tone tomorrow --
>or at least listen to it on SSB.
>
>I restored computer W10Pro 64 bit to several updates ago and no change.
>Rebooted computer - restarted programs . Clocks are within a tenth of a second.
>
>I am out of ideas -other than to change the K3S over to using the Signalink instead of the USB/internal codec.
>Guess I will do that later today since its 4 m.
>Nuts.
>
>
>Hank K7HP
>______________________________________________________________
>Elecraft mailing list
>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
>Message delivered to [hidden email]

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Re: WSJT FT8 TX not decoded using K3S TX - Rx ok

Lynn W. Taylor, WB6UUT-3
A strong suggestion from a network engineer.

Major NTP servers like time.nist.gov are the most accurate clocks, but
they aren't meant for everyone to use -- that's just too much traffic
and latency hurts their accuracy if they're abused.

A huge number of highly dedicated time-geeks run over four thousand time
servers around the world.  You can read about this at http://ntppool.org.

Using pool.ntp.org instead of time.nist.gov (or a few dozen other
awkward choices) will point you to a nearby, highly accurate source of time.

73 -- Lynn

On 5/17/20 11:44 AM, Barry wrote:

>      Here's something that might help. FT8 only decodes in a certain
> time slot. Make sure your computer is accessing an NTP server and get
> the correct time. Win10 can be set to automatically to access
> time.nist.gov. I spent a long time trying to get a ham buddy going the
> other day and couldn't figure it out. Another buddy picked up on the
> fact that time was not set correctly and he fixed it after which decodes
> started. I missed that one. So, just get the correct time and I infer
> that should fix your problem. You only need tro be seconds off to not work.
>
> 73,
> Barry
> K3NDM
>
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Re: WSJT FT8 TX not decoded using K3S TX - Rx ok

Nr4c
In reply to this post by HP
The first thing I look at if no decoding is my clock. FT8 requires time be plus/minus 1 second.

You need an app to keep the time.

Sent from my iPhone
...nr4c. bill


> On May 17, 2020, at 7:18 AM, HP <[hidden email]> wrote:
>
> Afire calling folks on ten who were running as much as +12 on Fri and Sat - and no answer
> I called a friend across town - He sees the signal and it will not decode. While he was listening
> he worked two stations on10 so his setup is working (K3S and Signalink)
>
> I hooked up my K3 - Signalink - and it will not decode the K3S tones -decodes band signals just fine .
> Makes no difference by band 80 or 10 the same and friend same on10 and 15 .
> BTW the K3S decodes on air signals just fine.
>
> This apparently happened in past week or so I do more listening than txing . Last FT8 qsos
> in log were 5 /10 .
>
> I uninstalled and re-installed WSJT -latest versions on both the K3 and K3S . No difference.
>
> I went to earlier K3S config file - no difference.
>
> Did an EEINT and still no difference-two different config files.
>
> Makes no difference 5 watts,20 watts ,50 watts out of K3S. ,or 450 watts out of KPA . (all into dummy load on both xcvrs.)
>
> Levels out of the computer are essentially same as always both rx and tx . Easy to get 4 bars ALC
> with 5th flickering . Tones in monitor sound clean and looking at the monitor audio on scope they
> are clean sine waves . The monitor signals look essentially the same on both the K3 and K3S.
>
> Tried looking at recovered audio tones both ways - they look pretty much the same but hard to tell
> dummy load to dummy load because of residual rx noise on the tones. Guess I could see if I could arrange to get
> more signal.
>
> Rig works on CW as always - dd not mess with SSB - Maybe I should look at two tone tomorrow --
> or at least listen to it on SSB.
>
> I restored computer W10Pro 64 bit to several updates ago and no change.
> Rebooted computer - restarted programs . Clocks are within a tenth of a second.
>
> I am out of ideas -other than to change the K3S over to using the Signalink instead of the USB/internal codec.
> Guess I will do that later today since its 4 m.
> Nuts.
>
>
> Hank K7HP
> ______________________________________________________________
> Elecraft mailing list
> 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
> Message delivered to [hidden email]
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