[Antennaware] K9AY Terminated RxLoop wire length

OZ1AXG Flam oz1axg.nospam at dxmail.dk
Mon Oct 13 15:21:09 EDT 2008


I put together a Terminated half loop, and it is working very well. Its a 
simple construction with only one loop (east/west) and a home made control 
box (no pre-amp, but working on putting one together). Especially the F/B is 
very impressive!

Receive signal level is good on 80 meters. However on 160 meter the signal 
is very low.

Dimentions of the antenna is 7.80 meters highest point; 0.40 meter lowest 
point. Sides are 8 meter (upper) plus 5 meter (lowerl) = total 26 meter.

I have read on the internet, several people adding wire to increase signal 
levels on 160 meter. Adding wire to the current construction can only be 
done by making the antenna wider.

Question: If I where to add 3 meter to each side of the antenna, i.e.10 
meter (upper) puls 6 meter (lower) side, getting a total length of wire of 
32 meters how would this effect the vertical and horisontal radiation 
patterns ? (Im a aware that this would compromise 80 meter opertation with a 
looplength > 0.3wl)


More information about the Antennaware mailing list