Originally Posted by BocaIII
I really appreciate your comments...they are reaffirming my thinking.
My High Sierra screwdriver performance is compared to my 102' G5RV base station.
Thanks again, 73's
W4GRJ / AFA4DG
Most welcome, Jack.
It's really hard to compare those two antennas, since the G5RV is almost certainly in some sort of a horizontal setup.
One thing I've found over the years in experimenting with many types of antennas on boats as well as on land is that vertical takeoff angle
is extremely important, especially for DX. A simple single-band vertical dipole for, say, 20m....rigged low down to the deck
and hoisted with a spare halyard
....will outperform almost any antenna you can think of on a sailboat.
Vertical dipoles work extremely well over land as well. When I moved to this house some 14 years ago, I used some of the tall trees to hoist vertical dipoles on 20 meters and 15 meters. I also had a 120' long commercial
folded dipole, rigged horizontally about 30' off the ground.
With an antenna switch, I could switch antennas easily. What I found over the years was that about 90-95% of the time the vertical dipoles WAY WAY outperformed the big horizontal antenna. You could hear the difference, and it was even more pronounced on transmit.
About 5-10% of the time, however, the horizontal dipole was close to...or even sometimes a tiny bit better than....the vertical dipoles. I judged this to be those relatively rare instances where incoming signals were at a relatively high angle.
The real DX-ers -- those who do extravagant DX-peditions to tiny islands around the world -- discovered vertical dipoles a few years back, and were astounded by their results. Some claimed as much as 18 or 20db "gain" as the result of the extremely low takeoff angle which reduced the number of ionospheric "hops" to the receiving station.
That sure parallels my experience, both afloat and ashore. I can work into Eastern Europe
easily with 5 watts QRP, and get in on first call!
Sorry to wander off topic, but antennas -- especially on boats -- are my passion. At least one of them :-)