--- In Repe
> As I recall, the low-split Sinclair harness had jumpers that were
about 2"
> longer than the high-split jumpers. Even though theory may dictate
> otherwise, this particular incident with this duplexer proved to me
that
> incorrect jumper lengths between cans may have a profound effect upon
pass
> attenuation, and almost no effect upon notch depth. YMMV.
Could be that the notch depth was obscured by the noise floor of the
analyzer, coax leakage, or other factors, and you just couldn't see the
change.
When tuning a set for the local club, I had the rejects down to where I
couldn't see the bottoms with my tracking generator at 11dBm and noise
floor at -70 IIRC, and I had to use an HT for signal source and tune
the notches that way. Scary thought when a bit too much input would
permanently smoke my analyzer.
But, if you're getting enough notch, then it's enough :)
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