Follow-up regarding the Cushcraft R3:

Product review on eham.net
http://www.eham.net/reviews/detail/1690

BAMA has the manual
http://bama.edebris.com/manuals/cushcraft/r3

Photo of R3 capacitor, motor (used for a loop design)
http://www.geocities.com/n0hc/loop



"N4VBH" wrote in message
ps.com...
Does anyone know what is exactly inside the "matching network
assembly" part for the R3 vertical antenna? I'm sure it's a couple of
capacitors, but I need to know the values in order to build one for my
R3.

Thanks,
Prentice
N4VBH

Thanks, w9gb

I have the manual for the R3, and I think the variable capacitor/motor
is OK. The part that needs replacing is a small coupling block
between the actual SO-239 feedpoint and the stubs that go to the
ring. The parts list calls it a matching network assy., so it must
contain some series capacitors, or something. I contacted Cushcraft
with no success...too old of an antenna.

Anyway, I will probably be moving to a GAP antenna. This one has
served an OK life.

Thanks,
N4VBH

On May 31, 11:49 pm, "w9gb" wrote:
Follow-up regarding the Cushcraft R3:

Product review on eham.nethttp://www.eham.net/reviews/detail/1690

BAMA has the manualhttp://bama.edebris.com/manuals/cushcraft/r3

Photo of R3 capacitor, motor (used for a loop design)http://www.geocities.com/n0hc/loop

OK, likely a couple of 47 pF doorknobs (or about 86 ) could be used for
replacement.

gb

"N4VBH" wrote in message
ups.com...
Thanks, w9gb

I have the manual for the R3, and I think the variable capacitor/motor
is OK. The part that needs replacing is a small coupling block
between the actual SO-239 feedpoint and the stubs that go to the
ring. The parts list calls it a matching network assy., so it must
contain some series capacitors, or something. I contacted Cushcraft
with no success...too old of an antenna.

Anyway, I will probably be moving to a GAP antenna. This one has
served an OK life.

Thanks,
N4VBH

On May 31, 11:49 pm, "w9gb" wrote:
Follow-up regarding the Cushcraft R3:

Product review on eham.nethttp://www.eham.net/reviews/detail/1690

BAMA has the manualhttp://bama.edebris.com/manuals/cushcraft/r3

Photo of R3 capacitor, motor (used for a loop
design)http://www.geocities.com/n0hc/loop