> Your test equipment is unquestionably more sophisticated than
> my tracker but I wonder about the figure you recorded for the
> BP BR pass attenuation at .0953. That seems awfully low. I
> would expect to see something in the whereabouts of .5 db.
I noticed that too, and verified it twice. It really is that low. The
cavities I used were originally part of a 900 MHz combiner, designed for
relatively close spacings between transmitters. With the notch tuned much
further away (10 MHz) from the pass as compared to the original
configuration, the passband insertion loss came down quite a bit.
> Because of the division scale you used you aren't displaying
> any changes that take place w-a-y out of band and Murphy's
> law being what it is, this might be significant in certain
> situations.
Yeah, I know, but I was mostly just interested in looking at what happens to
the "desired" notch at 910 MHz, and using its depth to gauge the performance
degradation of the system when cable lengths were changed.
--- Jeff
