Quote:
Originally Posted by unitelex
I have not adjusted the main LO frequency setting trimmers. There is a possibility that these have been upset before I received the set.
I am loathed to adjust these until other causes have been eliminated.
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I think that's a wise decision for the time being.
The problem is with a lot of these sets is that people will twiddle them to try to get them to go beyond the 100MHz top frequency, so you could well be right in that those trimmers have been fiddled with. You may have to throw caution to the wind and twiddle them yourself once all other possibilities have been exhausted.