In article ,
David wrote:

On 8 Sep 2005 08:17:00 -0700, "bpnjensen" wrote:

I agree in general, except for the fact that a dipole has a
characteristic directionality, whereas a random wire significantly
shorter than the wavelength will be omnidirectional. I suspect that
there will be occasional times when this factor matters.

When it doesn't matter, a random wire is still a more versatile antenna
than a single-lambda dipole, even when untuned.

I have an Alpha-Delta DXUltra, which is basically a multi-lambda
dipole, and a 60-foot random wire through a transformer at 20 feet
elevation above ground. Noise levels aside, there is little I can hear
on the DXUltra that doesn't appear on the wire, and quite a bit on the
wire, especially at freqs 6 MHz, that is inaudible on the DXUltra
(even though the DXUltra supposedly is good down to 120 meters - this
loss of signal may be a function of inadequate height, since the
antenna center is only 27 feet sloping to 7 feet at either end).

Bruce Jensen

I find a random wire superior overall to just about any ''tailor
made'' SWL antenna I've tried.

An antenna "tailored" for a frequency will pick up more signal energy on
that frequency than an antenna of the same type that is not resonant at
that frequency.

--
Telamon
Ventura, California

Telamon - I 'theory' you are correct.

In article . com,
"RHF" wrote:

Telamon - " The assertion that RHF made was that resonance on an
antenna is not important on receive and only important on transmit. "
.
Telamon - Did I in-fact say that ? ? ?
[ Please re-read my original posting again. ]

Snip

Your original post contained the reply below that you re-posted without
comment, which I can only assume means that you are in agreement with it.

Your posts are kind of long and rambling so maybe I'm mistaken.

= = = In ,
= = = "Jack Painter" 223bthp@c... wrote:

C.E.,

I didn't mean to imply that an HF antenna would normally
transmit farther than it can receive, only that a random
wire can sometimes outperform it on the receive-end.

This can happen even when listening on the transmitting
antenna's resonant frequency.

Under average circumstances, a dipole at proper elevation
and orientation will outperform a random wire (tx or rx).

- - S N I P - - -

Jack

--
Telamon
Ventura, California

Telamon,

For One and All,

Telamon,