Topband: Beverages inside a hedgerow?

[John G3PQA]

> i can run one of the beverages at about 290 deg that is over 1150' long 
> but
> the feed point will be about 600' from the shack. Is this too long for a
> beverage and is the feed point a little too far away? I know coax losses
> are less important with RX ariels but is there a sensible limit when it
> come to the distance to the feed point?
> I hope I'm not going over old ground and i apologise if i am.
> 73,
> Colin, gm0vhr


290 deg is an excellent direction from UK for most USA. However a bit off 
beam for W7s, KL7s, KH6s etc which come in 330deg/360deg.
1150ft  is very long, and will make the beverage very directive (only 51 
degrees beamwidth and low angle 22 degrees elevation lobe, -6dBi gain, 
approx), a real killer rx ant if the DX is close to that direction.

If I was in happy position of having that antenna, and didnt have space for 
other directions, I would try putting a relay in the middle as could hear a 
wider azimuth range when half or third the length. A 600ft beverage 4ft high 
has approx 73deg beamwidth and 30 degree elevation main lobe, -10dBi gain. A 
400ft beverage has approx 97deg beamwidth and 40 degree elevation main lobe. 
Has anyone else tried this with one wire?

600ft feeder is no problem.  Satellite TV duofoil-type coax is relatively 
cheap and has relatively low loss on 160/80m.
Beverages 4 ft high are between approx -5dBi to -15dBi gain, so another few 
dB even from lossy coax should not be a problem with modern sensitive rxs, 
or if necessary with external extra preamp in shack. I use up to 1200ft 
without problem. Take normal precautions for common mode and critter attack!
73's
John G3PQA
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