I have it on good advice from Lloyd Alcorn at Wacom Products (RIP Wacom)
that Black Magic is involved.
Steve
In a nutshell, the cavities are either 1/4 or 3/4 wavelength with
coupling loops oriented for a particular degree of coupling, and also
the length affects coupling. Some cavities use 2 loops in band pass
configuration, and some use one loop for band pass / band reject
configuration. Cable lengths plus coupling loop length are set for 1/4
wavelength taking into account velocity factor of the cables and
connector length. Interstage cable length has large impact on loss.
Get everything just right and it might work.
73,
Steve
NU5D
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