[R-390] Two questions

[n4buq at knology.net]

> 1/ Sensitivity drops noticably going from the wider mechanical  filters 
to the narrower ones. The level meters are out of it but its probably more 
than 10-15db from 16 to 2 kc. This is actual signal loss not just noise 
loss of a narrower filter.  Anything to look for?
> 

If your IF unit is equipped with trimmers on the input and output of the 
filters, they may need to be adjusted.  I had the same problem with mine 
and tweaking the trimmers helped greatly.

Barry - N4BUQ