True, at least from my experience. If you're on a pointy part of the
Earth [aka summit such as in SOTA], the far field effects can and often
do lower the max elevation angle to or below the apparent horizon. Most
antennas on summits exhibit a host of other inefficiencies as well, but
the effect is there. I used a vertical GP with my Buddipole on summits
only because the horizontal OCF loaded dipole configuration was worse.
One thing that hasn't been mentioned is noise on RX. It seems like the
preponderance of man-made noise is vertically [more or less] polarized.
Until last Sunday, I had a Gap Titan on the roof. Good antenna, very
low SWR on all its bands. Nearly all the time, noise was 1-3 S-units
higher than on my tribander or dipoles. I did keep checking because
occasionally, mainly on 12 and 10, it was lower than the TB. Man-made
noise may not be a problem in a remote, back-packing environment of course.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 50th Running of the Cal QSO Party 3-4 Oct 2015
- www.cqp.org
On 7/23/2015 4:30 PM, Don Wilhelm wrote:
For the lower frequency bands, the height of a dipole
with those characteristics is not practical for most hams and the
vertical wins "hands down" for DX - provided a good radial field or
elevated radials are used.
73,
Don W3FPR
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
