Hard of hearing, almost deaf K3

[John Unger-3]

 A few days ago one of my K3's appeared to have suddenly gone almost deaf.
Here are some of the symptoms and observations:

- Rig's S meter shows very low or no background noise (strong stations can
still be heard weakly).
- P3 shows <S0 signal strength.
- I can hear strongest stations, they just make it to ~S1.
- Overall effect appears to be similar to having big attenuator in line.
- Problem is antenna independent.
- Rig transmits fine, low SWR, etc.
- Both main and sub receivers have the symptoms.

I've check most "obvious" things: RF gain, etc.,
(but there are a lot of buttons and MENU/CONFIG settings to inadvertently
push on the radio...)

I would appreciate any suggestions of what else to look for or reports of
similar problems from others before I ship it off to Elekraft.

73 and thanks - John, W4AU
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[Kidder, George]

Reload config file from when it was working OK.

George, W3HBM

On 1/21/2020 11:43 AM, John Unger wrote:

> [This message came from an external source. If suspicious, report to [hidden email]<mailto:[hidden email]>]
>
>   A few days ago one of my K3's appeared to have suddenly gone almost deaf.
> Here are some of the symptoms and observations:
>
> - Rig's S meter shows very low or no background noise (strong stations can
> still be heard weakly).
> - P3 shows <S0 signal strength.
> - I can hear strongest stations, they just make it to ~S1.
> - Overall effect appears to be similar to having big attenuator in line.
> - Problem is antenna independent.
> - Rig transmits fine, low SWR, etc.
> - Both main and sub receivers have the symptoms.
>
> I've check most "obvious" things: RF gain, etc.,
> (but there are a lot of buttons and MENU/CONFIG settings to inadvertently
> push on the radio...)
>
> I would appreciate any suggestions of what else to look for or reports of
> similar problems from others before I ship it off to Elekraft.
>
> 73 and thanks - John, W4AU
> ______________________________________________________________
> 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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[Martin Sole-3]

Ant 1/2, RX Ant settings would be first, tuner bypass next maybe.

If still not good does rf gain fully counterclockwise raise S meter to full scale?

Ant okay on another rx?



Sent from my iPhone

> On 21 Jan 2020, at 19:44, John Unger <[hidden email]> wrote:
>
>  A few days ago one of my K3's appeared to have suddenly gone almost deaf.
> Here are some of the symptoms and observations:
>
> - Rig's S meter shows very low or no background noise (strong stations can
> still be heard weakly).
> - P3 shows <S0 signal strength.
> - I can hear strongest stations, they just make it to ~S1.
> - Overall effect appears to be similar to having big attenuator in line.
> - Problem is antenna independent.
> - Rig transmits fine, low SWR, etc.
> - Both main and sub receivers have the symptoms.
>
> I've check most "obvious" things: RF gain, etc.,
> (but there are a lot of buttons and MENU/CONFIG settings to inadvertently
> push on the radio...)
>
> I would appreciate any suggestions of what else to look for or reports of
> similar problems from others before I ship it off to Elekraft.
>
> 73 and thanks - John, W4AU
> ______________________________________________________________
> 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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[Don Wilhelm]

John,

Have you checked the antenna feedline and connectors.
Those can often create a "big attenuator".
Try the antenna on another receiver if possible.

73,
Don W3FPR

On 1/21/2020 11:43 AM, John Unger wrote:

>   A few days ago one of my K3's appeared to have suddenly gone almost deaf.
> Here are some of the symptoms and observations:
>
> - Rig's S meter shows very low or no background noise (strong stations can
> still be heard weakly).
> - P3 shows <S0 signal strength.
> - I can hear strongest stations, they just make it to ~S1.
> - Overall effect appears to be similar to having big attenuator in line.
> - Problem is antenna independent.
> - Rig transmits fine, low SWR, etc.
> - Both main and sub receivers have the symptoms.
>

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Do you have another transceiver that could have blown its front end?  
You did not say that it is band independent, are you sure that you're  
not listening on the RX antenna jack with no antenna connected?

John KK9A



John Unger w4au wrote:
Tue Jan 21 11:43:09 EST 2020
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  A few days ago one of my K3's appeared to have suddenly gone almost deaf.
Here are some of the symptoms and observations:

- Rig's S meter shows very low or no background noise (strong stations can
still be heard weakly).
- P3 shows <S0 signal strength.
- I can hear strongest stations, they just make it to ~S1.
- Overall effect appears to be similar to having big attenuator in line.
- Problem is antenna independent.
- Rig transmits fine, low SWR, etc.
- Both main and sub receivers have the symptoms.

I've check most "obvious" things: RF gain, etc.,
(but there are a lot of buttons and MENU/CONFIG settings to inadvertently
push on the radio...)

I would appreciate any suggestions of what else to look for or reports of
similar problems from others before I ship it off to Elekraft.

73 and thanks - John, W4AU

______________________________________________________________
Elecraft mailing list
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Help: http://mailman.qth.net/mmfaq.htm
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