[NLRS] Club Cheap Yagi Build Day Advice Needed

W. S. Mitchell wsmitchell3 at gmail.com
Tue Nov 15 20:14:39 EST 2016


Greetings,
  I am organizing a WA5VJB Cheap Yagi build day for the Bloomington
(MN) Amateur Radio Association, which will happen at some point in the
next few months.  However, having never built these antennas before, I
could use some advice.

Assume for a moment that there are 8 participants, each of whom is
interested in building a 3-element 2 m yagi.  Each antenna requires
roughly 12' of conductor, with lengths of 37" (director), 41"
(reflector), and 60" (driven).

Am I correct to think that the best way to approach this is to use #10
solid copper wire for the whole thing?  I've looked for welding rod,
and it seems like it's more suited for 222 MHz and above (hard to find
>36" pieces).  From my searching, 1/8" or 3/16" copper tubing are a
bit tricky to find as well, and is generally more expensive (and less
robust in the field) than the (admittedly thinner) solid stuff.

My hardware store has 1/2"x3/4" pine in 8' sections, which should be
good for a few antennas.  I already have coax that can be used, and
tracking down crimp-type connectors (BNC, PL-259, probably not N
because the club members are unlikely to have any N gear) shouldn't be
too difficult.

Any advice or suggestions on sourcing materials would be greatly appreciated.

Thanks,
  Bill
AE0EE


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