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Filter Design

Message text written by Matt Donohoe
Looking for a program/design procedure for designing Bandpass and Lowpass
for 140-150MHz, 0-100MHz, 430-450MHz......

        Dig out a few bucks (~$30) and call the ARRL for W7ZOI's
"Introduction to Radio Frequency Design". It includes software that, I have
found through experience, allows you to synthesize and analyze any HP, LP,
BP or whatever filter, all the way to 9 poles, and be just right on the
money when you build it. Also teaches you what it's all about. Practical
plus enough math to keep it interesting. Highly recommended and worth lots
more than it costs.

Ed Krome K9EK
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