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Re: KX1 Receiver Alignment

Posted by Don Wilhelm-4 on Apr 10, 2009; 9:17pm
URL: http://elecraft.85.s1.nabble.com/KX1-Receiver-Alignment-tp2618208p2618360.html

Ed,

The trimmers are normal one turn trimmer capacitors.  I any one full
rotation, you should find 2 places where the signal peaks.

The order of things is important - peak 20 meters first - if you cannot
find a peak on 20 meters, you have something wrong and will have to look
for the problem source (most likely is a bad solder connection).
After peaking both trimmers for 20 meters, switch to 40 and peak that
band's trimmer.
If you have found a peak on both bands, all should be OK.

I would initially run with the Bandwidth control at 1/3 to 1/2 clockwise
rotation rather than full CCW.  The RF Gain at full CW and the AF gain
sufficiently advanced to hear something.

EMD wrote:

> All,
>
> I have completed Phase II of construction and have a couple of questions.  But first,  I have the RF Gain set to full clockwise, Filter full CCW and AF Gain at about the 12 O'clock position.  I have a 28' piece wireman 541 wire connected to the red side and a 16' piece of the same wire to the black side of a double BNC antenna connection.  I'm using a SONY MDR NC60 Noise canceling headset.  All the tests are good except I am not able to peak the trimming capacitors.  I do hear some static in the back ground but I don't think I'm doing it right since I cannot find Peak.  Do the trimmers have a max number of turns in one direction before the reach a stop or will they just keep turning?  Can they be broken by over turning in one direction?
>
> I need some help understanding this process.
>
> Thanks and 73
>
> Ed KE7HGA  
>  
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