[RVRC] Additional hamfest Club Construction Project

[Bryan D. Boyle]

On 11/26/2011 7:59 PM, Martin Friedman wrote:
> Hi all, I was thinking 2 and /or 3 feet. If we make the SO239 ground plane
> antennas it would be good to have a 15 or 20 foot "jumper" for that. Coax
> type shouldn't matter much  for short lengths.  Combinations of BNC and UHF
> would be a good idea. I don't think we should make too many the first year
> and see how they sell. Material costs are still not known but K2VHWsays he
> has lots of BNC crimp ons. 

I get Mil-grade RG-58a/u for $.23 per foot.  Not the Radio Shack crap.
This is traceable cable, 98% coverage tinned copper shield, 19 strand
tinned center conductor, poly dialectric.

You want cadillac cable...RG-142 teflon jacketed, dual braid, silver
plated cable is 1.75 per foot.  Super low loss.

Silver plated UHF for RG 58/142, teflon insulator, crimp on for 1.75 per.

SO-239 silver/teflon female connectors 2.00 each, panel mount.

BNC-M silver, gold pin for 58/142, crimp 1.75 each last I checked,
depending on price of gold.  Females are the same price.

Crimp tool and die for these sizes (both the bnc and uhf take the same
die size...) runs in the 75. range for both the handle and the die.  I
have to tool, by the by. Bought it when I worked in the avionics shop
part time at princeton airport back in the early 90s.

Shrink tubing is 2.50 for a 4' length of the 3/8" for the Alpha FIT
brand to cover the ferrule.  Use 1" per connector.  1 4' length will
give you 24 ends, or 12 cable assemblies or thereabouts.

This enough to go on?

BB