In article 910of.17564$hB6.7325@trnddc05,
"Dale Parfitt" wrote:

"Telamon" wrote in message
...
In article ExZnf.16498$OK6.110@trnddc03,
"Dale Parfitt" wrote:

"Telamon" wrote in
message

.com...
In article TkAnf.6139$Jz6.1420@trnddc06, "Dale Parfitt"
wrote:


.................................................. .................
........ ... ..

I fully agree...Note the post I just made, before I read this
one.. And a loop is most certainly *not* a quieter antenna than
a dipole, *except* in cases of corona problems. If there is no
corona, or static buildup, there is no advantage at all. And
you would need to be

in the mountains like HCJB to really see the advantage. It was
the corona problems at HCJB which led to the use of the loops at
that station. Had nothing to do with the antenna performance in
itself. Like I've said, RHF is an enthuthiastic sort, but he
comes up with some hokey ideas about antenna theory at times.
RHF, you need to invest in some good antenna books. IE: ARRL
antenna handbook, etc.. Your "intuition" is leading you
astray... MK

I agree totally. The W8JI link is very revealing of what I see
daily here. I continually compare my 7' shielded loop w/ BB preamp
to my 140' dipole. Even on 160M where the dipole is highly
reactive (thus incurring some additional feedline loss) the dipole
beats the shielded loop almost 100% of the time. To its credit,
the dipole is close to 150' above the lake, thus ensuring fairly
low takeoff angles down to perhaps 3 MHz or so.

Where the loop comes into its own is below 500KHz- the deep nulls
can be placed on a noisy transformer (?) across the lake and used
to reduce that noise source. With that said, the 140' dipole would
not be expected to perform well at LF.

If the loop is significantly closer to the ground than the dipole
then it is an unfair comparison. Antenna height is a large
parameter to beat with another antenna.


The loop is vertically polarized- so takeoff angle is not effected by
height above ground. In addition, I'm on a mountain top some 100'
above a large lake.

How close to the ground is the loop?

--
Telamon
Ventura, California
The loop is on a short tower at 20'- vertically polarized. At far field
distances, it's effectively 100' or so.

I have no explanation why the loop is doing worse for you.

--
Telamon
Ventura, California