The G5RV is a 100 foot center fed wire antenna.
Think of it as a long wire for each band and look up the patterns
for each length in the ARRL Antenna Book or other source.
80M .35 WL "short" dipole figure 8 pattern broadside to wire
40M .70 WL "long" dipole figure 8 pattern broadside to wire
30M 2X .5 WL Two Half waves in phase - figure 8 pattern 50 degrees
wide
broadside to wire
20M 3/2 WL current fed LW - 6 lobes - 4main lobes approx 35* to wire
2 minor lobes broadside to wire
17M 2X 1 WL voltage fed LW's - 4 lobes approx 40* to wire
15M 2X 1.1 WL voltage fed LW's - 4 major lobes, possible minor
(this is my "intuitive analysis...check w/modeling program)
12M 5/2 WL current fed LW - 10 lobes - 4 main lobes approx 30* from
wire
10M 2X 3/2 WL voltage fed LW - 6 lobes - 4 main lobes approx 35* to
wire
2 minor lobes broadside to wire
de Tom N4KG
............................
On Tue, 25 Nov 1997 22:59:26 -0800 ftbrady@le.klever.net (Frank T. Brady)
writes:
>Fellow Towertalkians:
>
>Until I get my tower up, I want to try to find a place for a full size
>G5RV.
>
>Eventually, I want to play it against a vertical so that I can make
>improvements in each until I have the best 'permanent' reference
>antenna.
>
>Q: Are the major lobes of the G5RV documented for each band so that I
>can
>position it in the best direction - or is it somewhat
>omni-directional? The
>easiest run would be between a 50ft mast and the only tall tree
>available,
>but this would be running North and South - the orientation I've
>always
>tried to avoid with other wire antennas.
>
>Tx & 73s
> Frank T. Brady - W0ECS
> Wildomar CA (65 mi N of San Diego)
>
>
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