Re: [digitalradio] OFF TOPIC

[Alan J. Wilson]

Ri ck, I`ve built both. I`ve compared them side by side and the slimjim 
wins. I could hear and get into repeaters with the slimjim that I could 
not with the jpole. Plus it matches much easier and is easier to build 
than the jpole. I always used the 450 ladderline to build the slim jim. 
The tv twinlead is a lot harder to work with. The one advantage of the 
jpole I found was that when you made it out of copper it was easier to 
mount. To mount the slimjim from the bottom. I put the ladderline in 1 
in pvc and really taped a fiberglass rod to the side of it. Then  I 
mounted the ant by clamping the fiberglass rod to a metal mast and it 
works good. Note, enclosing the ladderline will change the optimum feed 
point...hope this answers your question...73, Alan

Why do you prefer the SlimJim over the J-Pole?
LB Cebik did an in depth comparison of the two antennas and found the
J-Pole to be slightly better in performance.

Recently, our club had a J-Pole antenna building party and it was
difficult to get them tuned up where we wanted them using TV twinlead.

My best success with homebrew verticals has been when I used 450 ohm
slotted line, but I have never tried building the SlimJim's. Maybe they
are easier to match?

73,

Rick, KV9U

Alan Wilson wrote:
> You can build 2m slimjim out of 450 ladderline for less than 5
> bucks...Look on http://www.hamuniverse.com, 
<http://www.hamuniverse.com,> I've built several and
> they are very easy to construct, easier and better than the
> jpole...73, Alan