[Elecraft] K3 RF Feedback Problem

[Monty Shultes]

Lyle -

Thanks for the correction.  I saw the description on the schematic and 
thought I was doing the right thing.  Back in L7 goes, and I will look for 
L7 on the KIO3 board.

Monty

>> I bit the bullet and removed L4 and L7 this morning.  It is not 
>> difficult; they are both on the back of the front panel board.
>
> L4 on the front panel board is related to the issues some folks are having 
> when using the front panel mic connector with various audio routers.  It 
> can be shorted with a jumper from pin 8 of the mic jack to ground.
>
> L7 on the KIO3 audio I/O board can also be bypassed for the same reasons 
> when using the rear panel mic jack in similar installations.
>
> L7 on the front panel board is for reduction of noise from the RS232 
> serial port lines and should definitely not be bypassed!
>
> 73,
>
> Lyle KK7P
>
>
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