Elecraft

Digital Modes and K3S

Classic

List

Threaded

5 messages Options

KE1B

Digital Modes and K3S

I had this working, but now can’t figure out how I did it, cuz it’s not working again.

Running Windows 7, N1MM+, K3S connected via USB.

CW and SSB work fine, including macros.

On RTTY (MMTTY), if I hit any macro key, the radio keys up (PTT), but there is no diddling. At that time, I see the characters being sent in the Digital Window, and the XY scope is apparently showing my transmitted signal. I just get a pure carrier.

On PSK (MMVARI), if I hit a macro key, the radio keys up (PTT), and the characters show up in the Digital Window, but again there is apparently no audio getting from the computer to the radio.

In the Configurer, I have selected the K3S Codec as the output device for the radio.

I have tried lots of variations in ports and AFSK/FSK and such, to no avail. What should I be checking?

Rich KE1B
______________________________________________________________
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]

Bob McGraw - K4TAX

Re: Digital Modes and K3S

Are you in USB mode or TX Data mode on the radio?

I use TX Data very successfully. And when I work AFSK I do switch to
ALT mode which would be LSB mode in TX Data. Otherwise, TX Data us a
USB mode. The nice thing about using TX Data mode is that it negates
the COMP and EQ values. When going back to SSB then the COMP and EQ
values are retained.

73
Bob, K4TAX
K3S s/n 10,163

On 9/16/2015 2:18 PM, KE1B wrote:

> I had this working, but now can’t figure out how I did it, cuz it’s not working again.
>
> Running Windows 7, N1MM+, K3S connected via USB.
>
> CW and SSB work fine, including macros.
>
> On RTTY (MMTTY), if I hit any macro key, the radio keys up (PTT), but there is no diddling. At that time, I see the characters being sent in the Digital Window, and the XY scope is apparently showing my transmitted signal. I just get a pure carrier.
>
> On PSK (MMVARI), if I hit a macro key, the radio keys up (PTT), and the characters show up in the Digital Window, but again there is apparently no audio getting from the computer to the radio.
>
> In the Configurer, I have selected the K3S Codec as the output device for the radio.
>
> I have tried lots of variations in ports and AFSK/FSK and such, to no avail. What should I be checking?
>
> Rich KE1B
> ______________________________________________________________
> 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]

Jim Brown-10

Re: Digital Modes and K3S

On Wed,9/16/2015 2:20 PM, Bob McGraw - K4TAX wrote:
> Are you in USB mode or TX Data mode on the radio?

Rich is talking about RTTY, which the K3 transmits LSB. On Elecraft
radios, use AFSK-A or FSK-D for RTTY, which, I believe, also bypasses
the COMP, and sets EQ to a fixed high pass filter with a cutoff in the
range of 300 Hz.

For all other data modes, use DATA-A, which puts you in USB mode, with
COMP off and EQ bypassed or in HPF mode.

Also, the K3 runs ALL digital modes including RTTY just fine with VOX.
I've never used FSK or PTT. Simplifies things a lot.

Rich -- have you turned on the MON so you can hear the audio fed to the
TX? Do you hear anything? Are you using VOX or PTT? If VOX, play with
VOX GAIN (single push menu) and audio gain (in all digital modes, the
Mic Gain becomes Line In gain).

Do you see any indication of ALC? You should, and 4-5 bars is where you
want to be. Crank VOX and Line In gain. I've got K3s, not K3S, so can't
help with USB issues. BUT -- is it possible Windoze is messing with your
USB port assignments and/or audio switching?

OH -- one other thought. RTTY Baud rate must match in the radio and the
computer. Long Push the AFX knob (Data Mode) to see and cycle through
the RTTY rates.

These are all things I've had happen to me. :)

73, Jim K9YC

______________________________________________________________
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]

Steve Lund

Re: Digital Modes and K3S

I had a few similar problems when starting up my new Win7Pro PC today.

Check to make sure that the Mark frequency is the same on the K3 and MMTTY.
The defaults are not the same. And make sure that the TX Mark frequency is
the same as the RX frequency.

If you are using VOX make sure that it is on - got caught by that one.

Make sure that the PC line out is not muted.

Steve, K6UM

On Thu, Sep 17, 2015 at 2:05 AM, Jim Brown <[hidden email]>
wrote:

> On Wed,9/16/2015 2:20 PM, Bob McGraw - K4TAX wrote:
>
>> Are you in USB mode or TX Data mode on the radio?
>>
>
> Rich is talking about RTTY, which the K3 transmits LSB. On Elecraft
> radios, use AFSK-A or FSK-D for RTTY, which, I believe, also bypasses the
> COMP, and sets EQ to a fixed high pass filter with a cutoff in the range of
> 300 Hz.
>
> For all other data modes, use DATA-A, which puts you in USB mode, with
> COMP off and EQ bypassed or in HPF mode.
>
> Also, the K3 runs ALL digital modes including RTTY just fine with VOX.
> I've never used FSK or PTT. Simplifies things a lot.
>
> Rich -- have you turned on the MON so you can hear the audio fed to the
> TX? Do you hear anything? Are you using VOX or PTT? If VOX, play with VOX
> GAIN (single push menu) and audio gain (in all digital modes, the Mic Gain
> becomes Line In gain).
>
> Do you see any indication of ALC? You should, and 4-5 bars is where you
> want to be. Crank VOX and Line In gain. I've got K3s, not K3S, so can't
> help with USB issues. BUT -- is it possible Windoze is messing with your
> USB port assignments and/or audio switching?
>
> OH -- one other thought. RTTY Baud rate must match in the radio and the
> computer. Long Push the AFX knob (Data Mode) to see and cycle through the
> RTTY rates.
>
> These are all things I've had happen to me. :)
>
> 73, Jim K9YC
>
>
>
> ______________________________________________________________
> 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: Digital Modes and K3S

On Wed,9/16/2015 8:45 PM, Steve Lund wrote:
> Check to make sure that the Mark frequency is the same on the K3 and MMTTY.
> The defaults are not the same. And make sure that the TX Mark frequency is
> the same as the RX frequency.

YES! That's a BIG one. If the K3 tones are not the same as the MMTTY
tones, it will not TX.

I don't use MMVARI, but MMTTY has two .ini files that try very hard to
set your tones to the 2125 pair. I like low tones. To beat that, you
need to go into the directories where MMTTY is running, find those .ini
files (plain text) and change all the default tones to what you want to
use. The two files are mmtty.ini and userpara.ini The statements
you're looking for are DefMarkFreq=2.125000e+03 It occurs about 10
times in userpara.ini, only once in mmtty.ini userpara.ini is the file
that defines the many decoding options; when you cycle through them, all
of those parameters, including the tone frequencies, gets reset.

If you have multiple instances of MMTTY, you need to edit these files in
each directory.

73, Jim K9YC

______________________________________________________________
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]