>
> Does anyone have a good way of measuring the frequency of
PC board micro
> strips (M/S)?
I'm not exactly sure what you're asking. Microstrips are basically just
sections of transmission line. A transmission line doesn't have a
"frequency" - it has a length and a characteristic impedance.
You didn't say if you're trying to use the original devices or if you've
replaced them with something designed for 220. In either case, you're going
to need to come up with impedance data for the device and then do the math
to design the matching and go from there. Often the transformation ratio is
fairly high for matching bipolar VHF/UHF devices to 50 ohms, so the
microstrip geometry becomes rather critical.
--- Jeff
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