wrote in message
...
On 22 Apr 2006 11:46:13 -0700, "RHF"
wrote:

The Slim Jim Antenna
http://www.hamuniverse.com/slimjim.html
[snip]
So could I make one of these Slim Jim Antennas
for the Shortwave 49 Meter Band ? ? ?
and just how Thin-and-Tall would it be ? ? ?

~ RHF
.
.

The Slim Jim is another name for a J-Pole from everything I read about
it. This is a 1/2 wave antenna over a 1/4 wave matching section so
your 49 meter band antenna would be rather tall (about 37 meters).
Sure, you could make it ......... would be interested to see your
plans for installing it 8-}

Howard

With the base another 1/4 wave above ground, lo and behold the top of the
Slim Jim for the 49 m band would be ==== 49 metres above ground!

How slim? Probably transmission line theory here so the dimension is
independent of the wavelength. You could probably use 300 ohm twin lead if
it wouldn't break under its own weight.

Tom