K3: AF Gain delay?

[Ken Kopp-3]

I also had a cracked knob w/same symptoms. (:-))  Aptos sent
replacement same day.

73! Ken Kopp - K0PP
      [hidden email]

------------------------------------------------------------------------------------------------------------------

----- Original Message -----
From: Tom Childers, N5GE
To: [hidden email]
Sent: Saturday, 05 July, 2008 19:52
Subject: Re: [Elecraft] K3: AF Gain delay?


On Sat, 05 Jul 2008 14:48:37 -0400, "Joel R. Hallas"
<[hidden email]>
wrote:

>Folks,
>
>I notice a significant delay in response to the AF Gain control while
>in
>receive so far just one receiver here!). I'm not sure if it has always
>been
>this way and I hadn't observed it b4, but certainly for the last few
>F/W
>upgrades. I haven't done the most recent beta version since my radio PC
>is
>currently "casters up."
>

I had the same problem several weeks ago.  Check the AF knob and see if
it's
cracked and slipping on the shaft.  My unit was a factory built unit.


[snip]

Tom, N5GE - SWOT 3537 - Grid EM12jq

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[Joel R. Hallas]

Thanks to all for the suggestion of a cracked knob. I was hoping, but mine
didn't seem cracked, and there was no play at the ends of travel. I swapped
the AF and RF gain knobs to be sure, and it made no difference. Any other
ideas?

Regards, Joel
Joel R. Hallas, W1ZR


On Sat, 05 Jul 2008 14:48:37 -0400, "Joel R. Hallas"
<[hidden email]>
wrote:

>Folks,
>
>I notice a significant delay in response to the AF Gain control while
>in
>receive (so far just one receiver here!). I'm not sure if it has always
>been
>this way and I hadn't observed it b4, but certainly for the last few
>F/W
>upgrades. I haven't done the most recent beta version since my radio PC
>is
>currently "casters up."
>

I had the same problem several weeks ago.  Check the AF knob and see if
it's
cracked and slipping on the shaft.  My unit was a factory built unit.


[snip]

Tom, N5GE - SWOT 3537 - Grid EM12jq



------------------------------

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End of Elecraft Digest, Vol 51, Issue 11
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[Don Wilhelm-4]

Joel,

Remove both knobs from the concentric shafts and see if the nut holding
the control to the front panel has loosened.  Yes, the pots are fastened
to the board so you might not notice it at end of rotation, but a loose
mounting nut can impart a 'squishy' feel when the knob is rotated
because of the slight flexing.

73,
Don W3FPR

Joel R. Hallas wrote:
> Thanks to all for the suggestion of a cracked knob. I was hoping, but mine
> didn't seem cracked, and there was no play at the ends of travel. I swapped
> the AF and RF gain knobs to be sure, and it made no difference. Any other
> ideas?
>  
>
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