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Measuring filter shape factor
I'm not sure why the XY display, but seeing 40db is about the limit.
You really need test equipment to get any meaningful results. Network analysers that cover a few MHz aren't that expensive. You can also just use a RF generator and power meter, which is a cheaper solution since you don't need phase measurements to see attenuation. Telamon wrote: In article , "Brian Denley" wrote: wrote: How exactly does one see 60db down? Very carefully! Things start getting pretty dark after 40dB down so be very careful! -- Telamon Ventura, California |
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