Followup to my email sent to Cathy: I checked the aluminum pile(s) and
didn't see any 1/8 aluminum rod. However, thinking back on various
antenna projects here, I'd say 1/8 inch is a bit small for anything
below 70cm band. Cushcraft, Directive Systems and K1FO all used 3/16"
rod.... even on 70cm. And so did I for past antenna construction. For
that reason I DO have several 6ft lengths of 3/16" here. Additionally,
I have a very large quantity of 3/8" tubing which is what Swan and
later KLM used for their antenna elements. Those pieces are all 36"
which is too short for a 2M reflector or DE, but with a Quagi would be
fine for directors. But it's thin wall and not 6061T-6, so perhaps a
bit light for 2M elements, and would need a dowel or reinforcement mid
way if it would be bolted to a boom.
If there's a chance any of these antennas might be used on the weak
signal part of the band I could perhaps make a donation of either 3/16
or 3/8... Would really like to work someone in addition to W1GHZ for
that FN34 multiplier! And Terry, At Directive Systems, could probably
sell you some 3/16 rod. Not sure about cost or shipping however.
73,
Chip
W1AIM
FN34uj and elsewhere
On Wed, 26 Apr 2017 01:53:25 +0000 (UTC)
Catherine James <catherine.james@xxxxxxx> wrote:
We need to purchase some 36" rods, 1/8" diamater, for antenna construction. Ideally these would be aluminum, though steel or copper would work. They will become director elements in an 8-element quagi.
I haven't been able to find a place that will sell 36" aluminum rods in 1/8" diameter. I can find them in stainless steel from Grainger or other sources, but they'll be heavier and conduct less well.
Cost is important so that everyone in the club can afford to build one of these antennas.
Any suggestions for sources?
73,
Cathy
N5WVR