KL7JR DUAL G5RV (360)
Here's a double G5RV dipole design fashioned
from a double G5RV design by VO1TX who swears by it! The concept is
about the same as a G5RV design but not critical on vertical
radiator or leg lengths. Maybe, "The more the better" applies?
I haven't tried it, but as I
said, VO1TX swears by his design. I think this design is ideal if
you can only get one antenna up and want pretty much 360 degree
coverage on 10-80m, and who knows, if it's made longer (?) it could
also work on 160m!
It's just 2 dipoles at right angles connected
together then to the vertical radiator then to the coax to shack. In
other words, the plus wire from each dipole connects together and to
one leg of the twinlead and same for negative (shield) leg then
bottom to coax cable. Anyway, Bill VO1TX claims almost 360 degree
coverage plus being multi-banded. The tiny circles in the drawing
below represent the feed point connections and the separation
of the 2 wires of each dipole (one runs N&S and other
10-80 Meter Double G5RV Dipole
1. Make each leg at least 40 feet
2. Use 300 ohm twinlead for vertical
radiator (minimum 25 ft long) and attach to coax feedline to
3. Use as flattop (horizontal) or
Note: Only one coax cable needed. Attach both "center
coax" conductors to one side of 300 ohm twinlead and both shields to
the other side of twinlead. At end of twinlead, simply attach coax
(min 50 feet long) and run to rig! Seal all
connections well. Experiment with it and have fun!
A close relative of this design is the
Skeleton Cone antenna.
See more on it here.
73 John, KL7JR - kl7jr at