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K3 and 48,000 Hz Digital Issue

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James Bennett

K3 and 48,000 Hz Digital Issue

I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:

"I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….

The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.

Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"

Jim / W6JHB
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James Bennett

Re: K3 and 48,000 Hz Digital Issue

Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??

Jim Bennett / W6JHB
Folsom, CA

> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>
> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>
> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>
> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>
> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>
> Jim / W6JHB
> ______________________________________________________________
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Jim Brown-10

Re: K3 and 48,000 Hz Digital Issue

Hi Jim,

I'm only guessing, and I know nothing about the Apple world, but I'll do
my best. There are two communications speed settings at play. One is the
sample rate and bit depth for the USB sound card. That is set on the
Audio Tab of WSJT-X, and wants to be 16-bit 48 kHz. The other is
communications between WSJT-X and your radio for Rig Control via RS-232
(and perhaps a USB adapter). 38,400 is as fast as the K3 goes, so that's
what you must choose, and both the K3 and the radio must have the same
setting.

As for going into TX -- I use VOX for ALL modes except CW, and it works
great. The gotchas are VOX Gain (a menu setting) and Line In Gain (set
by the Mic Gain control when the K3 is set for Digital modes. Perhaps
all you need is more Line Gain and/or VOX Gain. That's happened to me
many times when I've changed setups. The Line In should be set for five
bars of ALC, then set VOX Gain to activate TX.

If this doesn't get you going, I suggest that you ask again on the WSJT
reflector. Some of the developers of WSJT-X monitor it, and may be able
to help. Who knows -- there may be a bug they need to squash. When I
reported rig control issues with the K3 with a WSJT-X Beta, they thanked
me, and several months later it seems to work.

73, Jim K9YC

On Sun,7/5/2015 9:18 PM, James Bennett wrote:

> Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??
>
> Jim Bennett / W6JHB
> Folsom, CA
>
>> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>>
>> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>>
>> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>>
>> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>>
>> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>>
>> Jim / W6JHB
>> ______________________________________________________________
>> 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]

James Bennett

Re: K3 and 48,000 Hz Digital Issue

This is looking more like a WSJT-X problem. I set my MIDI control to 48000 and fired up cocoaModem. Was able to easily send a 1kHz test tone and then send CQ. Going back to WSJT-X failed miserably. No amount of fiddling with the VOX gain or Mic drive control OR the controls on the front of the Tascam would make it work.

Also, the WSJT-X Audio tab has no place to set the sample rate or bit depth - on my version, anyway. I'll re-try the WSJT group.

Will post here if I get it resolved. I'm about ready to just blow it off and keep things at 41000. Arrghhh.....

> On Jul 5, 2015, at 11:17 PM, Jim Brown <[hidden email]> wrote:
>
> Hi Jim,
>
> I'm only guessing, and I know nothing about the Apple world, but I'll do my best. There are two communications speed settings at play. One is the sample rate and bit depth for the USB sound card. That is set on the Audio Tab of WSJT-X, and wants to be 16-bit 48 kHz. The other is communications between WSJT-X and your radio for Rig Control via RS-232 (and perhaps a USB adapter). 38,400 is as fast as the K3 goes, so that's what you must choose, and both the K3 and the radio must have the same setting.
>
> As for going into TX -- I use VOX for ALL modes except CW, and it works great. The gotchas are VOX Gain (a menu setting) and Line In Gain (set by the Mic Gain control when the K3 is set for Digital modes. Perhaps all you need is more Line Gain and/or VOX Gain. That's happened to me many times when I've changed setups. The Line In should be set for five bars of ALC, then set VOX Gain to activate TX.
>
> If this doesn't get you going, I suggest that you ask again on the WSJT reflector. Some of the developers of WSJT-X monitor it, and may be able to help. Who knows -- there may be a bug they need to squash. When I reported rig control issues with the K3 with a WSJT-X Beta, they thanked me, and several months later it seems to work.
>
> 73, Jim K9YC
>
>> On Sun,7/5/2015 9:18 PM, James Bennett wrote:
>> Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??
>>
>> Jim Bennett / W6JHB
>> Folsom, CA
>>
>>> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>>>
>>> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>>>
>>> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>>>
>>> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>>>
>>> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>>>
>>> Jim / W6JHB
>>> ______________________________________________________________
>>> 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
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> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

James Bennett

Re: K3 and 48,000 Hz Digital Issue

Nope, never did any hacks to the application. But I will look around at any config files I can view!

Jim Bennett / W6JHB
Folsom, CA

> On Jul 6, 2015, at 2:54 PM, Joe Subich, W4TV <[hidden email]> wrote:
>
>
> > Also, the WSJT-X Audio tab has no place to set the sample rate or bit
> > depth - on my version, anyway. I'll re-try the WSJT group.
>
> IIRC, in an early version of WSJT-X there was a configuration file hack
> to force the sound card to operate at 44,100 Hz. Did you set that by
> chance? If so, there may be a conflict between the file and what you
> have configured in your OS.
>
> 73,
>
> ... Joe, W4TV
>
>
>> On 2015-07-06 5:30 PM, James Bennett wrote:
>> This is looking more like a WSJT-X problem. I set my MIDI control to 48000 and fired up cocoaModem. Was able to easily send a 1kHz test tone and then send CQ. Going back to WSJT-X failed miserably. No amount of fiddling with the VOX gain or Mic drive control OR the controls on the front of the Tascam would make it work.
>>
>> Also, the WSJT-X Audio tab has no place to set the sample rate or bit depth - on my version, anyway. I'll re-try the WSJT group.
>>
>> Will post here if I get it resolved. I'm about ready to just blow it off and keep things at 41000. Arrghhh.....
>>
>>
>>
>>> On Jul 5, 2015, at 11:17 PM, Jim Brown <[hidden email]> wrote:
>>>
>>> Hi Jim,
>>>
>>> I'm only guessing, and I know nothing about the Apple world, but I'll do my best. There are two communications speed settings at play. One is the sample rate and bit depth for the USB sound card. That is set on the Audio Tab of WSJT-X, and wants to be 16-bit 48 kHz. The other is communications between WSJT-X and your radio for Rig Control via RS-232 (and perhaps a USB adapter). 38,400 is as fast as the K3 goes, so that's what you must choose, and both the K3 and the radio must have the same setting.
>>>
>>> As for going into TX -- I use VOX for ALL modes except CW, and it works great. The gotchas are VOX Gain (a menu setting) and Line In Gain (set by the Mic Gain control when the K3 is set for Digital modes. Perhaps all you need is more Line Gain and/or VOX Gain. That's happened to me many times when I've changed setups. The Line In should be set for five bars of ALC, then set VOX Gain to activate TX.
>>>
>>> If this doesn't get you going, I suggest that you ask again on the WSJT reflector. Some of the developers of WSJT-X monitor it, and may be able to help. Who knows -- there may be a bug they need to squash. When I reported rig control issues with the K3 with a WSJT-X Beta, they thanked me, and several months later it seems to work.
>>>
>>> 73, Jim K9YC
>>>
>>>> On Sun,7/5/2015 9:18 PM, James Bennett wrote:
>>>> Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??
>>>>
>>>> Jim Bennett / W6JHB
>>>> Folsom, CA
>>>>
>>>>> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>>>>>
>>>>> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>>>>>
>>>>> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>>>>>
>>>>> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>>>>>
>>>>> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>>>>>
>>>>> Jim / W6JHB
>>>>> ______________________________________________________________
>>>>> 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
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>>> 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]
>>

Robert Nobis - N7RJN

Re: K3 and 48,000 Hz Digital Issue

In reply to this post by James Bennett

Hi James,

I use a TASCAM US-366 with my Mac and have the sample are set to 48,000 Hz with no issues running WSJT-X versions 1.4 and 1.5. I use VOX control. You might have to go in and week the K3 VOX Gain and Line In Gain menu settings, however.

73,

Bob Nobis - N7RJN
[hidden email]

> On Jul 6, 2015, at 13:18, James Bennett <[hidden email]> wrote:
>
> Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??
>
> Jim Bennett / W6JHB
> Folsom, CA
>
>> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>>
>> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>>
>> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>>
>> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>>
>> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>>
>> Jim / W6JHB
>> ______________________________________________________________
>> 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]
>
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James Bennett

Re: K3 and 48,000 Hz Digital Issue

All - just wanted to send an update to this group - already did it on the WSJT-X Yahoo group.

I’ve exhausted all efforts on my end trying to get this “fixed”. Nothing I’m able to do seems to make digital communication between my iMac, Tascam US-125M, and my K3 work at 48000 Hz. It works great at 44100 Hz, so that’s where I will keep things. It turns out that in addition to WSJT-X not working at that setting, neither does FLDIGI. They both function properly at 44100. So…. if it ain’t broke, I’m not gonna try “fixing” it any longer. Stupid computers….. :-)

Thanks for everyone’s suggestions.

73, Jim / W6JHB

> On Monday, Jul 6, 2015, at Monday, 3:43 PM, Robert Nobis <[hidden email]> wrote:
>
> Hi James,
>
> I use a TASCAM US-366 with my Mac and have the sample are set to 48,000 Hz with no issues running WSJT-X versions 1.4 and 1.5. I use VOX control. You might have to go in and week the K3 VOX Gain and Line In Gain menu settings, however.
>
> 73,
>
>
> Bob Nobis - N7RJN
> [hidden email] <mailto:[hidden email]>
>
>
>> On Jul 6, 2015, at 13:18, James Bennett <[hidden email] <mailto:[hidden email]>> wrote:
>>
>> Nobody??? Am I the only K3 owner using a Tascam sound card and a Mac to run WSJT-X??
>>
>> Jim Bennett / W6JHB
>> Folsom, CA
>>
>>> On Jul 4, 2015, at 12:30 PM, James Bennett <[hidden email]> wrote:
>>>
>>> I posted this on the WSJT-X Yahoo group and still no resolution. Hoping that perhaps someone on this reflector might have some thoughts on the problem. It isn’t a real “problem” per se, as I can certainly use my system as it is, but just wondering about this “quirk”. Here is my post:
>>>
>>> "I just recently upgraded from WSJT-X 1.4.0 to 1.5.0 and have a question about something in the User Guide. I'm running on an iMac, OS X 10.10.4, an Elecraft K3, and my sound card is a Tascam US-125M. I am able to use the K3 and the new version of the software but have an issue with the documentation procedure….
>>>
>>> The WSJT-X user manual says to use the Apple Audio MIDI Setup utility to configure the sound card to 48000 Hz, two channel, 16 bit. I have been using the above configuration at 41000Hz with no problems. When I try running at 48000 Hz, the radio does not go into transmit mode. If I switch it back to 44100 Hz, it works OK. The specs for the US-125M indicate that it should work up to 48000 Hz. When set to 48000 Hz, I’m able to get the usual decodes, but can’t transmit. I’ve got it set for the K3/KX3, and CAT control.
>>>
>>> Any idea why I'm limited to 44100 with this configuration and why 48000 fails to work?"
>>>
>>> Jim / W6JHB
>>> ______________________________________________________________
>>> 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] <mailto:[hidden email]>