J. McLaughlin wrote:
After investigating a large set of traveling wave antennas (not
Beverage) I think that the smallest amount of power dissipated in the
terminating resistance was about 2 db. Mind, these were antennas with
useful lengths and angles. It is likely that a rhombic with very long
leg lengths would dissipate even less in its termination resistance.

Well, remember the posting that kicked off this discussion was about
the following very short traveling-wave antenna:

"It is a military inverted-V, 110 ft. long total, with each end
terminated in a 150 ohm resistor driven into the ground, center fed
through a 9:1 balun."

A 110 ft. center-fed inverted-V is certainly going to have extensive
losses in the resistors on most HF bands. After all, it is less than
1/2WL long on 75m and only 3 wavelengths long on 10m.
--
73, Cecil, W5DXP



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Dear Cecil: Your point is well taken.
I was talking about multiple wavelength structures. I should have
noted additional restrictions.

73 Mac N8TT

--
J. Mc Laughlin - Michigan USA
Home:

"Cecil Moore" wrote in message
...
J. McLaughlin wrote:
After investigating a large set of traveling wave antennas (not
Beverage) I think that the smallest amount of power dissipated in
the
terminating resistance was about 2 db. Mind, these were antennas
with
useful lengths and angles. It is likely that a rhombic with very
long
leg lengths would dissipate even less in its termination resistance.

Well, remember the posting that kicked off this discussion was about
the following very short traveling-wave antenna:

"It is a military inverted-V, 110 ft. long total, with each end
terminated in a 150 ohm resistor driven into the ground, center fed
through a 9:1 balun."

A 110 ft. center-fed inverted-V is certainly going to have extensive
losses in the resistors on most HF bands. After all, it is less than
1/2WL long on 75m and only 3 wavelengths long on 10m.
--
73, Cecil, W5DXP