The fiberglass insulator at the bottom of the antenna needs to be replaced.
Does anyone have experience with a substitute. I was wondering about a PVC
pipe section. Any help would be greatly appreciated.

73,
NS8R

Check with Cushcraft, they just might have parts for it.

Ron


Warren wrote in message
...
The fiberglass insulator at the bottom of the antenna needs to be
replaced.
Does anyone have experience with a substitute. I was wondering about a
PVC
pipe section. Any help would be greatly appreciated.

73,
NS8R

"Warren" wrote in message
...
The fiberglass insulator at the bottom of the antenna needs to be
replaced. Does anyone have experience with a substitute. I was wondering
about a PVC pipe section. Any help would be greatly appreciated.

73,
NS8R
Warren -

IF you are referring to the base section with insulator, a replacement base
section (for current model) for Cushcraft -- price was over $100 - last time
I checked.

The fiberglass base insulator is an epoxy-coated tube. The epoxy surface has
the tendency to "evaporate" and the bare glass fibers then are like a sponge
attracting absorbing dirt and moisture. CONSULT PA0FRI web site link below
for easy repair of this situation.

IF the fiberglass tube has cracked .. you will need facilities / equipment
to "press fit" the replacement insulator tube

I would recommend either fiberglass tube from a supplier (e.g. MaxGain) that
carries fiberglass tube
http://www.mgs4u.com/fiberglass-tube-rod.htm

OR the usage of Delrin.
Rick - WA6JKH uses solid Delrin rod for his GeoTool antenna product
http://www.geotool.com/morepix.htm

Cushcraft R5 and R7 repair web sites:
http://www.xs4all.nl/~pa0fri/Ant/R5/onhr5eng.htm

http://www.iol.ie/~bravo/r7_vertical.htm

http://www.qsl.net/ei7ba/r7_vertical.htm

w9gb