On Fri, 26 Sep 2003 01:45:14 GMT, budgie
wrote:

(snip)

More specifically, there is a very specialised report from the
Communications Research Centre in Ottawa titled "Beverage Antennas for
HF Communications, Direction Finding and Over-the horizon Radars" (CRC
Report #1282 - August 1976). This gives in vol2 all sorts of
parameters for HF beverage-type antennae. Gain, takeoff angle,
beamwidth, impedance etc as a function of ground type/condition, wire
length, wire height above ground etc. One VERY good read.

First report cited at:
http://shekel.dgcp.crc.ca/web2/tramp...m/A15glkni.000

"Richard Hosking" wrote in message .au...
If you are working at low frequencies, I have seen an idea using a very long
wire (say 4-5 wavelengths) at a low height above ground (say about 6 feet).
The antenna can be directive in it's long axis. It can help to reduce QRM
from a particular direction. Of course you need a fair bit of room...

Richard

Hi all,
the wire should be resistor loaded at the far end. It is so-called
"Beverage antenna". If you have several acres of pastures, it is a
perfect solution for DXing.

BR from Ivan

"Richard Hosking" wrote in message .au...
If you are working at low frequencies, I have seen an idea using a very long
wire (say 4-5 wavelengths) at a low height above ground (say about 6 feet).
The antenna can be directive in it's long axis. It can help to reduce QRM
from a particular direction. Of course you need a fair bit of room...

Richard

Hi all,
the wire should be resistor loaded at the far end. It is so-called
"Beverage antenna". If you have several acres of pastures, it is a
perfect solution for DXing.

BR from Ivan