XV144 - another lesson
Posted by
David Giles on
Aug 03, 2006; 8:50am
URL: http://elecraft.85.s1.nabble.com/XV144-another-lesson-tp392662.html
Hello All,
My XV144 is up and running with my K2 as the driver. Using the wide 10m mod
and a few hours with spectrogram I have peaked the bandpass response at the
ends of the 144-146 segment: for satellites (my main interest) and weak
signal.
The biggest problem I had during construction was mounting the PA module. The
heat spreader was fairly flat but the module had a curve that gave a 1.6mm
gap in the centre. No thermal insulator was going to fill that gap. In the
end I spent a few quiet hours carefully rubbing the module on a "flat smooth"
file (with everything I could get earthed for static protection). The module
backplate is just plated copper. Got the gap down so I couldn't see any
light between the module and the heat spreader.
The module survived and warms up the bottom of the case quite well.
73 de David VK5DG
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