[R-1051] Frequency Standard Modules

[Dennis McLaughlin]

Geoff Fors wrote:
> Dennis, thanks for your most detailed answer to my question!
> 
> It looks like I may need an extender cable to reach C33 if the module is
> installed, I haven't taken a look yet and my memory is fuzzy regarding what
> the space situation was like in that area.
> 
> For some reason quantities of frequency standard modules have been appearing
> on the surplus market for about a year, but no evidence of any 6 Pack, RF or
> IF modules...  The modules I have are tagged with naval overhaul decals
> dated in 1995 and 1996.
> 
> Geoff
> WB6NVH
> 
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Geoff
You can remove the cover from the frequency standard and put it back 
into the radio.  Adjust C33 with a small screwdriver.  You can't get to 
the screw straight on.  Put screwdriver onto screw at a 90 deg angle.  A 
small adjustment is all thats required to obtain a peak.  I guess the 
adjustment is sensitive to the cable capacitance.  The other adjustments 
can be done with the module powered up on the bench.

Yea, I wish the other modules would show up on ebay for a reasonable 
price.  I found that the RF module RF Transformers on the strips require 
adjustment.  Some have 20dB loss after adjustment.  The IF transformer 
on the 6 pack translator is cracked and wont peak. Etc., etc.

The radio is fun to work on.  What a piece of engineering.


Dennis