[Elecraft] New KPA100 no receive on SO239

Don Wilhelm w3fpr at embarqmail.com
Sat Jan 2 22:39:10 EST 2016


Cathy,

There should not be that much of a difference.  The speaker should fill 
a normal room with the AF gain at about 10 o'clock.
Check the polarity of the speaker wires.  If you interchanged the two 
speaker leads, the speaker audio will be shorted out.
Pull the speaker housing out of the P5 header and measure the resistance 
to the KPA100 ground of the cable.  You should measure zero ohms on the 
side that is furthest away from the K2 side panel. The lead that will be 
closest to the right side panel should measure the resistance of the 
speaker voice coil, which should be 3 to 4 ohms.
In other words, if you swapped the silver and copper wires anywhere 
along the paths, you would produce the results that you are hearing.

73,
Don W3FPR

On 1/2/2016 9:08 PM, Catherine James wrote:
>
> Possible, but the audio level of the KPA100 speaker was also so low 
> that I had to turn the audio up to full and put my ear next to the 
> speaker to hear anything. I think there's still an issue here, but 
> I'll play with it more and see what develops.
>
>
>



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