And Bob Brown used a monograph by J.A. Ratcliffe--"The Magneto-Ionic
Theory and its Application to the Ionosphere" which says the same thing.
It has to do with the angle between the E vector and the Earth's
Geomagnetic Field, which is horizontal at the geomagnetic equator. Bob
borrowed my copy of the book when he was writing the Big Gun's Guide.
Garry, NI6T
On 8/7/2015 6:24 PM, Greg - ZL3IX wrote:
Careful Mike! Jakarta is close to the equator, and power coupling is
likely to be better from a horizontally polarised antenna, especially
in an E-W direction. Ref The Big Gun's Guide to Low-Band Propagation
by Bob Brown, NM7M (SK)
On 2015-08-08 12:40 p.m., Mike Waters wrote:
For 160 DX, a vertically-polarized antenna (fed against a proper
ground) is
best.
http://www.w0btu.com/160_meters.html
73, Mike
www.w0btu.com
On 8/7/2015 16:52 PM, Nuradi wrote:
I plan to install wire antenna on a roof top of a 33rd story building
(about 110 metres above the ground) for operating on the 160M, 80M
and 40M
band. ... Preferable wire antenna is lazy 'laying'H or quad,
dipole, slope..
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