23 dBm means 23 dBm LO power. 200 milliwatts. at least the 17 dBm mixer
only needs 50 milliwatts. That would be the biggest problem with using
the higher power mixer. The next problem probably is that the RF and
first IF stage is very close to being the limitation with the 17 dBm
mixer. Then the crystal filters run into problems handling more than
that much signal.
It may be that the 17 dBm mixer could handle 20 or 21 dBm local
oscillator power with improved signal handling characteristics. That's
often true of lower power MCL mixers.
73, Jerry, K0CQ
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Entire content copyright Dr. Gerald N. Johnson, electrical engineer.
Reproduction by permission only.
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