Skipp said:
I don't have time to debate or argue the point... but I will write
that I don't agree with the above statement. We can go back and
forth about that later on if you like...
cruising7388 said:
Yes, indeed it is a critical length if if is your desire to
superimpose the bandpass curve properly on the
pass curve of the duplexer. It should be an electrical 1/4 wave that
accounts for the velocity propagation
of the cable plus the electrical length of the coupling element in
the Celwave cavity
<---I suspect Skipp is referring to the same issue BUT....Nate
specifically said he had an extra Celwave BANDPASS cavity.
Yes I know that if we were dealing with a Bp/Br cavity, coax length
between it and other Bp/Br cavities IS a factor. But I stand by my
comments that all things being equal - coax length absolutely does
NOT matter if the impedances at each end match the coax's
characteristic impedance (ie 50 ohms is maintained). 1/4 wave, odd
multiples thereof, 1/2, etc would make absolutely no difference
whatsoever is impedance's matched throughout
Now if one wants to argue that coax is really 52 ohms as opposed to
50 ohms, that's another story...
Ken
