[R-390] R-392 VFO End Point?

[Flowertime01 at wmconnect.com]

John,

R392 were considered tactical radios and got treated different from the R390 
receivers.

If your R392 did not work, it was sent away from you for repair. Your repair 
guy was likely a module swapper. If your PTO was out of spec, it was just 
swapper. For a long time PTOs just piled up out back of the Depot. Then someone 
invented a "portable" frequency counter and it was discovered that the PTO could 
be easily "refurbished". It is not amazing there is nothing in the TM about 
making what is a simple adjustment. We know there are several good things 
missing from the R390 TMs.

Back when there items were new, you could get 10 plus years on a PTO and 
never need to adjust it. Once you get yours set, it may never need adjustment 
again. It likely has never been adjusted in its life or maybe once or twice.

Roger KC6TRU