Topband: EWE 160m

[Terry Conboy]

At 06:09 AM 2008-10-13, Andree Schanko wrote:
>I erected today a new EWE  for 160m NE direction.
>This year  I have another place for the EWE .
>My dimensions are:   height  5 m (16ft)     length  30m  (98 ft)
>In ON4UNs handbook are  max. 15m length   and  5 m height  recommended.
>Whats the problem with more horizontal length???
>vy 73 Andy DL8LAS  (DR5X)
>  <http://www.dl8las.de> www.dl8las.de
>  <http://www.darc.de/distrikte/m/11/> www.darc.de/distrikte/m/11/

Andree,

It appears that using the 30 meter length increases the gain by about 
4 dB, but decreases the F/B from about 22 dB to about 15 dB on 160m 
(at a 10 degree takeoff angle).   This is with #14 wire, a 900 ohm 
load, and average MININEC ground.

However, if you also want to use it on 80m, the forward gain 
decreases by 2 dB and the pattern gets bad, with nearly zero F/B and 
about 5 dB more gain broadside than endfire.

73, Terry N6RY