[Collins] Re: 30L-1 Tuned Input

[Dr. Gerald N. Johnson, electrical engineer]

I'm not saying the cathode choke is necessarily faulty, just that its
design is imperfect. And that imperfection may be adding to the
difficulty of match. If the factory accepts 11% reflected power, you may
never do better over the whole band no matter how much you fiddle. You'd
be happier with the match if the Bird had 10' of RG-58 between it and
the 30L1. Not that the match would be better at the input of the
amplifier, just the Bird (and the driver) would see a better match just
due to the loss of the coax.

73, Jerry, K0CQ, Technical Advisor to the CRA.
-- 
Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.