K3 - Can't hear 40m sigs in sub rx

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K3 - Can't hear 40m sigs in sub rx

John E Bastin-2
For the last few weeks I’ve had a problem in the Sub RX of the K3, and I wonder if anyone has an idea what setting I may have messed up, or where to look for the problem.

The problem is that I cannot hear any signals in the Sub RX on 40 meters. I’ve tried headphones, internal speaker, external speakers, all the same problem. If I turn up the Sub RX gain a LOT, I hear a little noise, but I think it’s just receiver noise. The problem is only on 40 meters, in all modes. All other bands are working just fine.

The signals are there, because I can see them in the display of the P3. In fact, I’ve been working around the problem in split DX pileups, determining where the callers are by watching the traces on the display and positioning the transmitter accordingly.

K3 serial number 7299, FW version 5.50, DSP 1 and 2 v2.87. I’ve done the KSYN3A upgrade on both receivers, but everything has been working until this problem appeared, as I say, a few weeks ago. I really can’t remember anything I may have done that coincides with the appearance of this problem.

Does anyone have any ideas? Thanks in advance for your help.

73,

John K8AJS
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Re: K3 - Can't hear 40m sigs in sub rx

Don Wilhelm
John,

The most common cause of that problem is the SubRX antenna selection -
that is a per band setting.

Go to 40 meters and get into BSET - then tap the RX ANT button.

If that does not restore proper operation, contact Elecraft support.

73,
Don W3FPR

On 10/3/2016 10:04 AM, John E Bastin wrote:
> For the last few weeks I’ve had a problem in the Sub RX of the K3, and I wonder if anyone has an idea what setting I may have messed up, or where to look for the problem.
>
> The problem is that I cannot hear any signals in the Sub RX on 40 meters. I’ve tried headphones, internal speaker, external speakers, all the same problem. If I turn up the Sub RX gain a LOT, I hear a little noise, but I think it’s just receiver noise. The problem is only on 40 meters, in all modes. All other bands are working just fine.
>
> The signals are there, because I can see them in the display of the P3. In fact, I’ve been working around the problem in split DX pileups, determining where the callers are by watching the traces on the display and positioning the transmitter accordingly.
>

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Re: K3 - Can't hear 40m sigs in sub rx

John E Bastin-2
On Oct 3, 2016, at 10:19, Don Wilhelm <[hidden email]> wrote:
>
> John,
>
> The most common cause of that problem is the SubRX antenna selection - that is a per band setting.
>
> Go to 40 meters and get into BSET - then tap the RX ANT button.
>
> If that does not restore proper operation, contact Elecraft support.

I’ll check that, but it seems that if there was no antenna, there would be no signals in the sub rx on 40 meters, and I’m seeing the signals on the  P3, I just have no audio.

I’ll take a look and let you know.

73,


John K8AJS
[hidden email]



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Re: K3 - Can't hear 40m sigs in sub rx

John E Bastin-2
On Oct 3, 2016, at 10:55, John E Bastin <[hidden email]> wrote:

>
> On Oct 3, 2016, at 10:19, Don Wilhelm <[hidden email]> wrote:
>>
>> John,
>>
>> The most common cause of that problem is the SubRX antenna selection - that is a per band setting.
>>
>> Go to 40 meters and get into BSET - then tap the RX ANT button.
>>
>> If that does not restore proper operation, contact Elecraft support.
>
> I’ll check that, but it seems that if there was no antenna, there would be no signals in the sub rx on 40 meters, and I’m seeing the signals on the  P3, I just have no audio.
>
> I’ll take a look and let you know.

I did try that, and it made no difference, looked like everything was set OK.

I’ll contact Elecraft.

Thanks for the help,

73,



John K8AJS
[hidden email]



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Re: K3 - Can't hear 40m sigs in sub rx

Don Wilhelm
In reply to this post by John E Bastin-2
John,

Normally the P3 does not show signals from the subRX.  The IF out is
only from the main RX.
Unless you have added an IF buffer amplifier and IF output to your
SubRX, you will not see signals from the subRX on your P3.

73,
Don W3FPR

On 10/3/2016 10:55 AM, John E Bastin wrote:

> On Oct 3, 2016, at 10:19, Don Wilhelm <[hidden email]> wrote:
>> John,
>>
>> The most common cause of that problem is the SubRX antenna selection - that is a per band setting.
>>
>> Go to 40 meters and get into BSET - then tap the RX ANT button.
>>
>> If that does not restore proper operation, contact Elecraft support.
> I’ll check that, but it seems that if there was no antenna, there would be no signals in the sub rx on 40 meters, and I’m seeing the signals on the  P3, I just have no audio.
>
>

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Re: K3 - Can't hear 40m sigs in sub rx

John E Bastin-2
On Oct 3, 2016, at 11:14, Don Wilhelm <[hidden email]> wrote:

> John,
>
> Normally the P3 does not show signals from the subRX.  The IF out is only from the main RX.
> Unless you have added an IF buffer amplifier and IF output to your SubRX, you will not see signals from the subRX on your P3.

Ah, I understand. That puts a different slant on the subject.

Thank you!

73,

John K8AJS
[hidden email]



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Re: K3 - Can't hear 40m sigs in sub rx

Nr4c
In reply to this post by John E Bastin-2
Use BSET and check antenna selection on 40m. Bet it's on wrong antenna.

Sent from my iPhone
...nr4c. bill


> On Oct 3, 2016, at 10:04 AM, John E Bastin <[hidden email]> wrote:
>
> For the last few weeks I’ve had a problem in the Sub RX of the K3, and I wonder if anyone has an idea what setting I may have messed up, or where to look for the problem.
>
> The problem is that I cannot hear any signals in the Sub RX on 40 meters. I’ve tried headphones, internal speaker, external speakers, all the same problem. If I turn up the Sub RX gain a LOT, I hear a little noise, but I think it’s just receiver noise. The problem is only on 40 meters, in all modes. All other bands are working just fine.
>
> The signals are there, because I can see them in the display of the P3. In fact, I’ve been working around the problem in split DX pileups, determining where the callers are by watching the traces on the display and positioning the transmitter accordingly.
>
> K3 serial number 7299, FW version 5.50, DSP 1 and 2 v2.87. I’ve done the KSYN3A upgrade on both receivers, but everything has been working until this problem appeared, as I say, a few weeks ago. I really can’t remember anything I may have done that coincides with the appearance of this problem.
>
> Does anyone have any ideas? Thanks in advance for your help.
>
> 73,
>
> John K8AJS
> [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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New to the K3; ssb/cw question

Ron Manfredi
In reply to this post by Don Wilhelm


I have been getting acclimated to my (new to me)  K3 and marveling over
its many ways to customize its operation.   Made some SSB contacts, and
decided to try CW.

I connected my paddle, and did some quick tests on CW.   I have found
that even when I am in USB or LSB modes, keying the paddle causes the
rig to transmit cw.  This happens even  with the rig in the PTT mode on
sideband.  It this correct, or have I missed a setting somewhere?

Ron  WA2EIO
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Re: New to the K3; ssb/cw question

k6dgw
It depends ... there's a menu setting [I'd tell you where except I'm not
at my K3 right now] to turn it on and off.  There are some times when
it's advantageous to be able to send CW while in SSB modes ... VHF
contest comes to mind.

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org

On 10/3/2016 11:41 AM, Ron Manfredi wrote:

> I have been getting acclimated to my (new to me)  K3 and marveling over
> its many ways to customize its operation.   Made some SSB contacts, and
> decided to try CW.
>
> I connected my paddle, and did some quick tests on CW.   I have found
> that even when I am in USB or LSB modes, keying the paddle causes the
> rig to transmit cw.  This happens even  with the rig in the PTT mode on
> sideband.  It this correct, or have I missed a setting somewhere?
>
> Ron  WA2EIO

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Re: New to the K3; ssb/cw question

Don Wilhelm
In reply to this post by Ron Manfredi
Ron,

You likely have CW+SSB turned on.  It is one of the sub-functions of the
CW WGHT menu.  Look at page 55 of the manual.  Tap [1] to toggle it on/off.
If you have an older manual, you will not see it - download a new manual
from Elecraft.

73,
Don W3FPR


On 10/3/2016 2:41 PM, Ron Manfredi wrote:
> I have been getting acclimated to my (new to me)  K3 and marveling
> over its many ways to customize its operation.   Made some SSB
> contacts, and decided to try CW.
>
> I connected my paddle, and did some quick tests on CW.   I have found
> that even when I am in USB or LSB modes, keying the paddle causes the
> rig to transmit cw.  This happens even  with the rig in the PTT mode
> on sideband.  It this correct, or have I missed a setting somewhere?

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Re: New to the K3; ssb/cw question

Ron Manfredi
In reply to this post by k6dgw
Thanks, Fred.   After reading your reply, I checked and finally did find
this setting  in the Main menu; an awful lot of things to check!

73,

Ron  WA2EIIO


On 10/3/2016 2:48 PM, Fred Jensen wrote:

> It depends ... there's a menu setting [I'd tell you where except I'm
> not at my K3 right now] to turn it on and off. There are some times
> when it's advantageous to be able to send CW while in SSB modes ...
> VHF contest comes to mind.
>
> 73,
>
> Fred K6DGW
> - Sparks NV DM09dn
>
> - Northern California Contest Club
> - CU in the Cal QSO Party 7-8 Oct 2017
> - www.cqp.org
>
> On 10/3/2016 11:41 AM, Ron Manfredi wrote:
>
>> I have been getting acclimated to my (new to me)  K3 and marveling over
>> its many ways to customize its operation.   Made some SSB contacts, and
>> decided to try CW.
>>
>> I connected my paddle, and did some quick tests on CW.   I have found
>> that even when I am in USB or LSB modes, keying the paddle causes the
>> rig to transmit cw.  This happens even  with the rig in the PTT mode on
>> sideband.  It this correct, or have I missed a setting somewhere?
>>
>> Ron  WA2EIO
>
> ______________________________________________________________
> 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: New to the K3; ssb/cw question

k6dgw
Yep, as has been pointed out before, the K3 is a highly configurable
radio.  Some settings, such as AGC and equalizer, can take awhile to get
what you want, their effects can be very subtle.  Fortunately, the
factory defaults right out of the box will provide you with a highly
usable radio.  I rarely tap or hold the MENU button anymore.

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org

On 10/3/2016 11:58 AM, Ron Manfredi wrote:
> Thanks, Fred.   After reading your reply, I checked and finally did find
> this setting  in the Main menu; an awful lot of things to check!
>
> 73,
>
> Ron  WA2EIIO

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