[Elecraft] K60XV Alignment Question

Don Wilhelm w3fpr at isp.com
Sat May 22 22:11:16 EDT 2004


Brian,

I didn't notice (I just went ahead and aligned it), but I do think the XV60
instructions are incorrect in that part of the alignment procedure.

Here is how I have done the alignment - First set the K2 to 40 meters and
re-peak the inductors (they should not be far off, but since the 4.7 pf
bandpass filter coupling capacitor was moved to the XV60 board there MAY be
a small difference).

Next, switch to 60 meters and peak the varaible capacitors on the XV60
board, and you are done.

Go through this sequence twice - first time on receive, listening for
maximum noise or signal (this is a close but approximate alignment) and then
repeat in transmit mode with the power level set for 2 watts adjusting for
maximum output.

This procedure is consistent with the bandpass filter alignment for the
other bands.  Where a set of inductors is used for 2 bands, align the higher
band first by adjusting the inductors and then align the lower band by
adjusting the capacitors.  The band pairs are 40/60, 20/30, 15/17, 10/12
meters.  80 meters and 160 meters are the exception - the bandpass filter is
first adjusted on 80 and then a check is made at 160 for power output vs.
current consumption - the adjustment may have to be set at a compromise
point between the two bands because there is no adjustable capacitors used
for 160 meters (the bandpass filter is broad enough to handle it with very
little compromise).

73,
Don W3FPR


----- Original Message ----- 
>
> I just completed the K60XV 60 meter module for my K-2.  The alignment
> requires adjusting trieters C1 and C2 on the module to peak received
signals
> and then xmit power.  You do this first on 60 meters, then again on 40
> meters.  When I tried the 40m part, the position of C1 and C2 had
absolutely
> no effect on either received signal strength or on xmit power.
>
> What should I be expecting here?  Tnx de Brian W3BW
>




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