[Elecraft] NG0R - K2+K60XV+XV144/222/432 - Setup Issue #2

[Don Wilhelm]

John,

On the XV432, can you vary the DC voltage measured at TP6 when you 
adjust the Input Attenuator?  TP6 is a built-in RF probe which measures 
the RF voltage at the output of U6.  If you can see that voltage change 
when adjusting the input attenuator, you can use it for peaking the 
bandpass filters.
On the XV222, there is no TP6, but you can use an external RF Probe to 
do the same thing.
If there is no output from U6, try the input.  The first step to your 
troubleshooting is to determine what works, and secondly to discover 
where in the chain of events the failure occurs.

73,
Don W3FPR

John Hoaglun wrote:
> Hi Don & group
>
> I tried using a low pass filter between the K60XV and the 432
> transverter and went thru the tune-up from scratch with similar results.
> I removed the LP filter.
>
> I measured the K60XV out at -3dBM or about 50mW which what I say last
> night as well. I put it on my counter & analyzer and notice that it
> there is something at 18MHz that is about +8-10 dB louder than the 28MHz
> IF.  --Interesting note.
>
> I then tried your second suggestion:  I reconfigured the transverter for
> a high power IF input,  JP3/JP4 2-3, and JP5/JP6 1-2, and the associated
> menu settings.  Using port A on the radio I tried rerunning the
> transverter setup and got similar results.
>
> Common theme: TP5 has almost no reading on it while adjusting R22.
> Adjusting the inductors does not cause a significant change in TP5.  (I
> can see it on the analyzer with a directional coupler on the output but
> it is a TINY signal.)
>
>
>