I spent some time today getting the whip antenna
prepped for use on the GRC-142 shelter at the Weare NH rally.
Often these antenna base assemblies get left out in the weather,
they are not built to be left out and last very long, the rubber
and steel components degrade with sun and water exposure.
If you are lucky the top and bottom should unscrew by hand,
inside the bottom cup is a plastic nut and washer, be careful
to over tighten when you reassemble. A bore brush, drill and
a 3/8 tap make the work much easier. Use your favorite grease
and assemble. The mast sections are copper plated steel and
the copper plating is very thin, be careful when buffing them
clean not to overdo it, these mast sections are very expensive
now, very light coat of grease on the threads here too. I
cover them with a plastic bag to keep the dirt off/out on both
ends.
I am also attaching an article on how to improve the
GRC-106 whip in the field. I know a wire antenna is ideal,
but oftentimes in a cramped static location such as a show the
whip is necessary.
Mark
K1HF
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