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Data troubles

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Martin Sole-3

Data troubles

Can anyone help with a quick DATA mode problem.

I've always used AFSK but it seems to have stopped working on transmit.
I can set DATA A and then send audio from the PC into the radio. It
transmits fine, no problem. Just switching to data mode AFSK and then
sending audio. the vox operates as before but no modulation, no output.

In summary, RX works fine both modes
TX works fine in DATA A
TX does not work other than trigering VOX in AFSK A.

Nothing else changes other than the mode on the front panel. Line in,
level all set the same.

Figure I must be doing something dumb.

Any help?

Thanks
Martin, HS0ZED

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Nr4c

Re: Data troubles

Check the DATA Sub-mode. You may be thinking AFSK but the software may reset to FSK D and that doesn’t require audio into the sound system.

In the TX monitor, Do you hear diddles or just a single tone?

Sent from my iPhone
...nr4c. bill

> On Nov 19, 2018, at 10:26 PM, Martin Sole <[hidden email]> wrote:
>
> Can anyone help with a quick DATA mode problem.
>
> I've always used AFSK but it seems to have stopped working on transmit. I can set DATA A and then send audio from the PC into the radio. It transmits fine, no problem. Just switching to data mode AFSK and then sending audio. the vox operates as before but no modulation, no output.
>
> In summary, RX works fine both modes
> TX works fine in DATA A
> TX does not work other than trigering VOX in AFSK A.
>
> Nothing else changes other than the mode on the front panel. Line in, level all set the same.
>
> Figure I must be doing something dumb.
>
> Any help?
>
> Thanks
> Martin, HS0ZED
>
> ______________________________________________________________
> 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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Bob McGraw - K4TAX

Re: Data troubles

In reply to this post by Martin Sole-3

You should be operating in DATA A mode for AFSK as it is an audio data
mode.

73

Bob, K4TAX

On 11/19/2018 9:26 PM, Martin Sole wrote:

> Can anyone help with a quick DATA mode problem.
>
> I've always used AFSK but it seems to have stopped working on
> transmit. I can set DATA A and then send audio from the PC into the
> radio. It transmits fine, no problem. Just switching to data mode AFSK
> and then sending audio. the vox operates as before but no modulation,
> no output.
>
> In summary, RX works fine both modes
> TX works fine in DATA A
> TX does not work other than trigering VOX in AFSK A.
>
> Nothing else changes other than the mode on the front panel. Line in,
> level all set the same.
>
> Figure I must be doing something dumb.
>
> Any help?
>
> Thanks
> Martin, HS0ZED
>
> ______________________________________________________________
> 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]
>

Martin Sole-3

Re: Data troubles

Okay, but the K3 book states AFSK A mode can also be used for
Audio-shift transmit, but is optimized for RTTY. Also the RTTY text
decoder does not work in DATA A mode.

Martin, HS0ZED

On 20/11/2018 10:38, Bob McGraw K4TAX wrote:

> You should be operating in DATA A mode for AFSK as it is an audio data
> mode.
>
> 73
>
> Bob, K4TAX
>
>
> On 11/19/2018 9:26 PM, Martin Sole wrote:
>> Can anyone help with a quick DATA mode problem.
>>
>> I've always used AFSK but it seems to have stopped working on
>> transmit. I can set DATA A and then send audio from the PC into the
>> radio. It transmits fine, no problem. Just switching to data mode
>> AFSK and then sending audio. the vox operates as before but no
>> modulation, no output.
>>
>> In summary, RX works fine both modes
>> TX works fine in DATA A
>> TX does not work other than trigering VOX in AFSK A.
>>
>> Nothing else changes other than the mode on the front panel. Line in,
>> level all set the same.
>>
>> Figure I must be doing something dumb.
>>
>> Any help?
>>
>> Thanks
>> Martin, HS0ZED
>>
>> ______________________________________________________________
>> 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
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Richard Ferch-2

Re: Data troubles

In reply to this post by Martin Sole-3

There is a narrow transmit AF filter configurable in AFSK A. If this filter
is turned on, you must keep your transmit audio frequency within the filter
bandpass, otherwise there will be nothing transmitted. Set your RTTY
software's audio frequency to match the K3's PITCH setting in AFSK A and
don't let it move around. You may need to disable AFC in the RTTY software,
and avoid the temptation to tune by clicking in the waterfall - use the
radio's tuning knob, the same as you would in FSK D.

73,
Rich VE3KI

HS0ZED wrote:

In summary, RX works fine both modes
TX works fine in DATA A
TX does not work other than trigering VOX in AFSK A.
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Bob McGraw - K4TAX

Re: Data troubles

In reply to this post by Martin Sole-3

Correct, correct and correct.

73

Bob, K4TAX

On 11/19/2018 9:45 PM, Martin Sole wrote:

> Okay, but the K3 book states AFSK A mode can also be used for
> Audio-shift transmit, but is optimized for RTTY. Also the RTTY text
> decoder does not work in DATA A mode.
>
> Martin, HS0ZED
>
> On 20/11/2018 10:38, Bob McGraw K4TAX wrote:
>> You should be operating in DATA A mode for AFSK as it is an audio
>> data mode.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>> On 11/19/2018 9:26 PM, Martin Sole wrote:
>>> Can anyone help with a quick DATA mode problem.
>>>
>>> I've always used AFSK but it seems to have stopped working on
>>> transmit. I can set DATA A and then send audio from the PC into the
>>> radio. It transmits fine, no problem. Just switching to data mode
>>> AFSK and then sending audio. the vox operates as before but no
>>> modulation, no output.
>>>
>>> In summary, RX works fine both modes
>>> TX works fine in DATA A
>>> TX does not work other than trigering VOX in AFSK A.
>>>
>>> Nothing else changes other than the mode on the front panel. Line
>>> in, level all set the same.
>>>
>>> Figure I must be doing something dumb.
>>>
>>> Any help?
>>>
>>> Thanks
>>> Martin, HS0ZED
>>>
>>> ______________________________________________________________
>>> 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]
>
> ______________________________________________________________
> 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]
>

Martin Sole-3

Re: Data troubles

In reply to this post by Nr4c

So far as I am aware software shouldn't be changing. No CAT connection
from rig to PC, just changing mode on the front panel of the K3 and
sending tone in the LINE IN connector.

On 20/11/2018 10:36, Nr4c wrote:

> Check the DATA Sub-mode. You may be thinking AFSK but the software may reset to FSK D and that doesn’t require audio into the sound system.
>
> In the TX monitor, Do you hear diddles or just a single tone?
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Nov 19, 2018, at 10:26 PM, Martin Sole <[hidden email]> wrote:
>>
>> Can anyone help with a quick DATA mode problem.
>>
>> I've always used AFSK but it seems to have stopped working on transmit. I can set DATA A and then send audio from the PC into the radio. It transmits fine, no problem. Just switching to data mode AFSK and then sending audio. the vox operates as before but no modulation, no output.
>>
>> In summary, RX works fine both modes
>> TX works fine in DATA A
>> TX does not work other than trigering VOX in AFSK A.
>>
>> Nothing else changes other than the mode on the front panel. Line in, level all set the same.
>>
>> Figure I must be doing something dumb.
>>
>> Any help?
>>
>> Thanks
>> Martin, HS0ZED
>>
>> ______________________________________________________________
>> 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]

Martin Sole-3

Re: Data troubles

In reply to this post by Richard Ferch-2

Well done Richard. Gold star!

SYNC DT.

Don't ask, I have no idea. MMTTY demod was set correct, I use 915Hz but
the TX audio was different, like 2125Hz.

Panic over hihi!

73
Martin, HS0ZED

On 20/11/2018 10:48, Richard Ferch wrote:

> There is a narrow transmit AF filter configurable in AFSK A. If this filter
> is turned on, you must keep your transmit audio frequency within the filter
> bandpass, otherwise there will be nothing transmitted. Set your RTTY
> software's audio frequency to match the K3's PITCH setting in AFSK A and
> don't let it move around. You may need to disable AFC in the RTTY software,
> and avoid the temptation to tune by clicking in the waterfall - use the
> radio's tuning knob, the same as you would in FSK D.
>
> 73,
> Rich VE3KI
>
> HS0ZED wrote:
>
> In summary, RX works fine both modes
> TX works fine in DATA A
> TX does not work other than trigering VOX in AFSK A.
> ______________________________________________________________
> 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]

Jim Brown-10

Re: Data troubles

In reply to this post by Bob McGraw - K4TAX

On 11/19/2018 7:38 PM, Bob McGraw K4TAX wrote:
> You should be operating in DATA A mode for AFSK as it is an audio data
> mode.

NO! RTTY is LSB, and requires AFSK A. DATA A is USB, and is used for all
other computer-generated digital modes.

73, Jim K9YC

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Nr4c

Re: Data troubles

In reply to this post by Martin Sole-3

Sorry. But DATA A is for USB modes like FT8, PSK, etc. RTTY (FSK) is a LSB mode and should use the Sub-Band AFSK A on a K3.

Sent from my iPhone
...nr4c. bill

> On Nov 19, 2018, at 10:45 PM, Martin Sole <[hidden email]> wrote:
>
> Okay, but the K3 book states AFSK A mode can also be used for Audio-shift transmit, but is optimized for RTTY. Also the RTTY text decoder does not work in DATA A mode.
>
> Martin, HS0ZED
>
>> On 20/11/2018 10:38, Bob McGraw K4TAX wrote:
>> You should be operating in DATA A mode for AFSK as it is an audio data mode.
>>
>> 73
>>
>> Bob, K4TAX
>>
>>
>>> On 11/19/2018 9:26 PM, Martin Sole wrote:
>>> Can anyone help with a quick DATA mode problem.
>>>
>>> I've always used AFSK but it seems to have stopped working on transmit. I can set DATA A and then send audio from the PC into the radio. It transmits fine, no problem. Just switching to data mode AFSK and then sending audio. the vox operates as before but no modulation, no output.
>>>
>>> In summary, RX works fine both modes
>>> TX works fine in DATA A
>>> TX does not work other than trigering VOX in AFSK A.
>>>
>>> Nothing else changes other than the mode on the front panel. Line in, level all set the same.
>>>
>>> Figure I must be doing something dumb.
>>>
>>> Any help?
>>>
>>> Thanks
>>> Martin, HS0ZED
>>>
>>> ______________________________________________________________
>>> 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]
>
> ______________________________________________________________
> 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]

Joe Subich, W4TV-4

Re: Data troubles

In reply to this post by Martin Sole-3

Martin,

Please check the "PITCH" setting vs. the mark tone generated by
your AFSK software. The K3/K3S contains a very narrow audio
filter on the input audio (CONFIG:AFSK TX). If the AFSK TX
filter is ON and your software does not match the K3 PITCH you
will see the behavior you describe.

73,

... Joe, W4TV

On 2018-11-19 10:26 PM, Martin Sole wrote:

> Can anyone help with a quick DATA mode problem.
>
> I've always used AFSK but it seems to have stopped working on transmit.
> I can set DATA A and then send audio from the PC into the radio. It
> transmits fine, no problem. Just switching to data mode AFSK and then
> sending audio. the vox operates as before but no modulation, no output.
>
> In summary, RX works fine both modes
> TX works fine in DATA A
> TX does not work other than trigering VOX in AFSK A.
>
> Nothing else changes other than the mode on the front panel. Line in,
> level all set the same.
>
> Figure I must be doing something dumb.
>
> Any help?
>
> Thanks
> Martin, HS0ZED
>