[Elecraft] [PX3] Does not respond to the knob being rotated

[Dale Boresz]

Steve,

Just another data point ...

My PX3 exhibits the same behavior in a system that includes the KXPA100. I
see it happen when I twist the KX3's OFS knob to quickly QSY. However, if
I turn OFF the the KXPA100 via the KX3 "PA MODE" menu option, the PX3
responds immediately to a twist of the KX3 OFS knob. If I turn the KXPA100
"ON" again, a quick turn of OFS results in the original sluggish PX3
response. Perhaps communications between the KX3 and the KXPA100 is at a
higher priority than between the KX3 and the PX3.

73,

Dale - WA8SRA



> I have seen a similar issue with my PX3 but it may not be the same or it
> may be related to the root of the problem.
>
> What I notice is what "in the old days" would be switch bounce. What I
> notice (like you) is when I turn the knob fast the value bounces around
> but doesn't go anywhere.  I find that if I turn the knob real slow it
> will work.  The knob is an encoder and must be seeing  CW/CCW pulses out
> of sync or something like that?
>
> Does slow work?
>
> steve WB3LGC
>
>
> On 10/16/2016 12:34 PM, James Austin wrote:
>> My PX3 no longer responds to the knob being turned. The only indication
>> I
>> see when turning it is when the marker frequency is being displayed.
>> When
>> turning the knob, the displayed marker frequency bounces back and forth
>> between something like 14.050.80 and 14.050.85.
>>
>> The PX3 is otherwise functional.
>>
>> Any suggestions? I opened it up and all the solder connections for the
>> encoder are solid.
>>
>> 73,
>>
>> Jim/KA2RVO
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