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Re: LF: Antennas on low bands : the Siegel and Labus books.

from [DK1IS] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: Antennas on low bands : the Siegel and Labus books.
From: DK1IS <[email protected]>
Date: Fri, 29 May 2015 23:45:44 +0200
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Am 29.05.2015 um 21:59 schrieb Rik Strobbe:

Hi Bob,

 

small is a relative thing on LF.

A DDRR with a perimeter of 0.25 lambda and a height of 0.025 lamdba is indeed small on 144MHz, but on 137kHz the perimeter becomes 550m and the height a respectable 55m.

Not a backyard antenna ...

 

73, Rik  ON7YD - OR7T


Hi Rik and Bob,

acoording to Rothammel et alt. in my former 10 meter version I used a height of 0,007 lambda, so you should need rods of only 15,4 meters - but anyway ...  ;-)

73,
Tom, DK1IS
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