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!
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Telamon
Ventura, California