I've reclaimed an XV144 that I bought used in 2005 and have never used
from a friend to whom I loaned it. I'll be using it with a K3, that will
be dedicated to 2M. I'm told that frequency stability is a concern, and
that it's important to drive it at the "right" level so that fixed
attenuation is not switched in to protect the TX input. The question is,
what is the "right" level to minimize dissipation inside the XV144? So
far, I haven't found that in the manual or the specs.
Another observation. The latest manual for the XV-series converters
contains another massive goof in the wiring of the AUX cable. It shows
only two conductors with no return, depending on the coax to carry a
return signal. That's fine for DC, but our stations produce RF, so the
large loop formed by the coax and the control lines is a big antenna. TILT!
Time for another manual re-writing. And to fire the guy who conceived
the drawing.
73, Jim K9YC
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