[R-390] Red Dot - Second try a charm (Maybe)

[Bill Abate]

  I was faced with the same problem on my 390A.  No marks.  A friend 
told me that it is something that hardly anyone messes with.  There just 
is no reason to.  So the knob set screw detent on the shaft is all I 
needed to align the knob.

I felt I needed to check this so I used my capacitance meter to find the 
minimum.  He was right.  The detent indicated the correct alignment.  I 
won't doubt him next time!

73,

Bill, K3PGB

Steve Hobensack wrote:

 > This is the way I find half-mesh if the red dots are missing and the 
knob mounting is questionable. There shoudl be two peaks in signal on 
the antenna trimmer. Find the mid position between the two peaks. This 
will be either full mesh or zero mesh. Move the knob 90 degrees from 
this position.
 > ....Steve...N8YE
 >
 >
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