[Fwd: LF: G3LDO LF Antenna]
Tue, 13 Jan 1998 05:50:24 -0500
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attached is the description of _one_ VLF antenna that
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Date: Tue, 13 Jan 1998 08:24:02 GMT
From: Peter Dodd <email@example.com>
X-Mailer: ZIMACS Version 1.20c 10000836
Subject: LF: G3LDO LF Antenna
Attached File: LFANT.PCX
Some interest has been shown in my 73kHz antenna so I will describe it.
The LF shack is located at the bottom of the garden some 44m away
from the house. The main support is a 16m high home made fold-over
mast (the one described in the Antenna Experimenters Guide) located
39m from the house.
At the top of the mast is a 3m metal spreader. The antenna comprises
two wires only, which are joined together at the ends and spread 3m
apart at the highest point. The antenna is connected at the loading
(secondary) coil at the shack end and supported by a short pole on
the house at the other.
This antenna has a much larger horizontal component than traditional
Marconi antennas and its configuration was dictated by existing
positions of the mast, garden shed and house rather than LF design
considerations. It will be interesting to see how this antenna
performs on 136kHz.
Because of planning condiderations it has to be folded over during
hours of daylight! (theoretically). This is why I only transmit in
the mornings and evenings.
I have attached a PCX file to this message, to show the general
configuration of the antenna.
Peter Dodd, firstname.lastname@example.org