[Elecraft] Antenna Question

[Stuart Rohre]

Ron has summarized quite well, what I think Les Moxon was trying to get
across in his write up on the Zepp.
Not yet mentioned for the newbies, is the end fed Zepp is more commonly seen
today as the VHF J pole.  The same antenna with a 90 degree angle removed
from its feeder/matching stub.  Of course, the J poles generally have been
one band antennas, but the cactus J pole often adds 440 to 2M,and I think
someone even tacked on a 222 antenna.

In a recent ARES group meeting in Williamson County, TX, we built some J
poles of 1/2 inch copper pipe.  For convenience, we mounted antenna jack on
the short side pipe, and drilled a thru hole to carry a right angle
insulated wire from the center post of the connector inside the short stub,
and back out to tap onto the longer pipe element.  Much to my delight, I
discovered we had both 2M fundamental good match, and a good one at 440
without adding any "cactus" elements!  Apparently, placement of the type UHF
connector facilitated a multi band match.  I think the spacing from short
stub to main pipe was 3 inches, for those wanting to try this.  But, before
you do, I will check on the right spacing.

For K2 use, a J pole for 10M is feasible, but 3/4 pipe would make a sturdier
radiator and stub.
72,
Stuart K5KVH