>>> The inverted L will out perform and inverted vee, hands down, 90% of the
>>> time. The few exceptions will probably be near your local SR (and other
times) when horizontal polarization can work better Dave, W0FLS<<<
This conclusion regarding probability is supported through numerous
observations over the years in various texts and documented in John Delvodere's
"Low Band DXing" 5th Edition Chapter 14 Section 7.
But each installation is unique. These are probabilistic forecasts (like the
weather).
The important thing is to go into the experiment with realistic expectations
and a priori knowledge of most-likely outcomes. But by all means, experiment!
Share your results! We are all learning new things every day, especially about
Top Band.
I will share my experience when I phased two dipoles on 80 meters, 20 feet high
above average soil, as an experiment: I presumed, based upon standard
literature I had reviewed up until that point and 45 years of personal
experience, that the installation would be a "ground warmer."
Imagine my surprise when I was able to easily hear and work into EU running
QRP! I learned a lot from that experiment and VA2GU's assistance (although
John Delvodere does discuss this type of antenna at the beginning of Chapter 12
in the 5th Edition). VA2GU has evaluated phased wires extensively and has
collected data to confirm his conclusions (you can see his analysis on his
QRZ.com web page.) Alas, a storm brought the dipoles down and the tree
supports with them.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4elg@arrl.net
http://wd4elg.blogspot.com
SKCC #16439 FISTS #17972 QRP ARCI #16497
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|