K3: Shift/Width encoder pulse noise?

[K2QI]

Greetings reflector fans,

I noticed something odd tonight with my K3; something I've never noticed
before.  I decided to do some SWL'ing around 40m and test out the relatively
new Sync-AM feature.  All works well but whenever I turn the filter shift or
width knobs now, I get a fairly loud encoder pulse noise.  This is similar
to the VFO encoder hash on 5 MHz that I used to get prior to the
hardware/software mod implementation.  This enoder pulse/hash sounds loudest
when the received signal is strongest, or when using an antenna jack that
has an antenna connected.  I can't seem to replicate the problem on 20m.
Also, when switching over to the sub receiver, rotating the width/shift
knobs don't have an effect unless I enter the B-set menu.

The noise seems to be present in all modes (AM, CW, Data, USB, and LSB).

This is with the latest beta firmware; 3.63.  I've just reverted back to
3.42 to see if there's a change, and there isn't (perhaps the hash isn't as
loud, but it's still there).

I recently replaced my FP due to my original FP's encoders going bad.  I
have a new FP that I replaced myself.  The encoders used in the new FP
have a stiffer resistance to turning and don't have the detent feel any
more.  I'm not sure if something could have happened when I replaced the
panel, but I doubt it as everything else seems to work FB.

Anyway, just thought I'd toss this out there.  Anyone have any suggestions?
Anyone notice anything similar?

--
73 de James K2QI
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[K2QI]

Odd... a few days have passed and not a single response to my query.  I did
some searching and noticed people have mentioned "ticks" or "ticking" when
rotating the width knob, but I'm not sure if what I've described can be
considered the same thing.

Anyway, does anyone care to comment or should I forget about it? Obviously
my question doesn't seem to be as important as others.

73 de James K2QI

On Sat, Dec 5, 2009 at 11:18 PM, James Sarte <[hidden email]> wrote:

> Greetings reflector fans,
>
> I noticed something odd tonight with my K3; something I've never noticed
> before.  I decided to do some SWL'ing around 40m and test out the relatively
> new Sync-AM feature.  All works well but whenever I turn the filter shift or
> width knobs now, I get a fairly loud encoder pulse noise.  This is similar
> to the VFO encoder hash on 5 MHz that I used to get prior to the
> hardware/software mod implementation.  This enoder pulse/hash sounds loudest
> when the received signal is strongest, or when using an antenna jack that
> has an antenna connected.  I can't seem to replicate the problem on 20m.
> Also, when switching over to the sub receiver, rotating the width/shift
> knobs don't have an effect unless I enter the B-set menu.
>
> The noise seems to be present in all modes (AM, CW, Data, USB, and LSB).
>
> This is with the latest beta firmware; 3.63.  I've just reverted back to
> 3.42 to see if there's a change, and there isn't (perhaps the hash isn't as
> loud, but it's still there).
>
> I recently replaced my FP due to my original FP's encoders going bad.  I
> have a new FP that I replaced myself.  The encoders used in the new FP
> have a stiffer resistance to turning and don't have the detent feel any
> more.  I'm not sure if something could have happened when I replaced the
> panel, but I doubt it as everything else seems to work FB.
>
> Anyway, just thought I'd toss this out there.  Anyone have any
> suggestions?  Anyone notice anything similar?
>
> --
> 73 de James K2QI
>

--
73 de James K2QI
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[Joe Planisky]

Hi James,

As far as the noise when you turn shift/width, yes, I hear it too.  I  
assume it's the result of changing the DSP filter parameters.  If done  
while it's processing a strong signal it seems there's bound to be  
some artifacts.  I don't know if anything can be done to quiet them.  
I personally don't consider it a problem, but others might object to it.

As for the shift/width not altering the sub-RX settings unless you're  
in B-set, I think that's normal unless you're in diversity mode.

As for the different feel of the encoders, I can't comment.  Haven't  
had to replace mine.

73
--
Joe KB8AP


On Dec 7, 2009, at 4:54 PM, James Sarte wrote:

>
> On Sat, Dec 5, 2009 at 11:18 PM, James Sarte <[hidden email]>  
> wrote:
>
>> whenever I turn the filter shift or
>> width knobs now, I get a fairly loud encoder pulse noise.

[snip]

>> Also, when switching over to the sub receiver, rotating the width/
>> shift
>> knobs don't have an effect unless I enter the B-set menu.
>>

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[K2QI]

Hi Joe,

Thanks for the reply.  I don't think it's much of an issue either.  Only
reason I asked is I recently replaced front panels.  I didn't know if I
screwed something up during the transplant.  I do not recall hearing the
same ticking/pulse noise with the previous hardware.  Good to know I'm in
the clear.

73 de James K2QI


-----Original Message-----
From: Joe Planisky [mailto:[hidden email]]
Sent: Monday, December 07, 2009 8:26 PM
To: James Sarte
Cc: Elecraft
Subject: Re: [Elecraft] K3: Shift/Width encoder pulse noise?

Hi James,

As far as the noise when you turn shift/width, yes, I hear it too.  I  
assume it's the result of changing the DSP filter parameters.  If done  
while it's processing a strong signal it seems there's bound to be  
some artifacts.  I don't know if anything can be done to quiet them.  
I personally don't consider it a problem, but others might object to it.

As for the shift/width not altering the sub-RX settings unless you're  
in B-set, I think that's normal unless you're in diversity mode.

As for the different feel of the encoders, I can't comment.  Haven't  
had to replace mine.

73
--
Joe KB8AP



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