Would somebody tell me why would a "Inverted" "L" be better then a "Sloping"
"L"

Burr's Radio Shack - http://tinyurl.com/3wuscn

Red Mountain, California / Bulacan, Philippines

On Apr 17, 2:44*am, "Burr" wrote:
Would somebody tell me why would a "Inverted" "L" be better then a "Sloping"
"L"

Burr's Radio Shack -http://tinyurl.com/3wuscn

Red Mountain, California / Bulacan, Philippines

Burr - The "L" If I Know ! ;-} ~ RHF

"Burr" wrote in message
...
Would somebody tell me why would a "Inverted" "L" be better then a
"Sloping" "L"

Burr's Radio Shack - http://tinyurl.com/3wuscn

Red Mountain, California / Bulacan, Philippines

If the antenna were for a single narrow band of frequencies and it was
desired to receive in a particular direction you might make a (small) case
for one over the other. But for general listening, it would be impossible to
make a case for one over the other.

The real advantage for either one is that they allow for the UNUN to be
close to the ground, thus making an effective RF ground possible.

Dale W4OP

RHF wrote:
On Apr 17, 5:33 am, RHF wrote:
On Apr 17, 2:44 am, "Burr" wrote:

- - Would somebody tell me why would a
- - "Inverted" "L" be better then a "Sloping" "L"
- -
- - Burr's Radio Shack -http://tinyurl.com/3wuscn
- -
- - Red Mountain, California / Bulacan, Philippines

- Burr - The "L" If I Know ! ;-} ~ RHF
- .
- -ps- tdmmdi

Burr,

READ - The Shortwave Radio Listener (SWL) :
Sloper Antenna -versus- Inverted "L" Antenna : The 3:4:5 of It !
http://groups.google.com/group/rec.r...7f982be7601f51

Basically your Sloping "L" Antenna -if- You start with an
Inverted "L" Antenna using a Ground Rod at the base of
the "L" with a 9:1 Matching Transformer and Coax Cable
feed-in-line.

Then Drop the Far-End of the Horizontal-Out-Arm so that
it is at or near the surface of the Ground.
-or- At Least a 30 Degree Angle of Slope from the Apex.
[ Angle between the Vertical and Sloping Wires is 60
Degrees or less. ]

You then have created your Sloping "L" Antenna.

For some frequencies related to the Length of the
Vertical-Up-Leg : 1/8WL, 1/4WL, 1/2WL 1WL . . .
You have an Omni-Directional Antenna Element.

For some frequencies related to the Length of the
Sloping Section : 1/8WL, 1/4WL, 1/2WL 1WL . . .
You have a Directional Antenna Element favoring
the direction of the Far-Down-End.

For most frequencies NOT related to the Length of the
Vertical-Up-Leg and Sloping Section : You will have a
Directional Antenna with a Heart Shaped {Cardioid}
Antenna Pattern that favors the direction of the
Far-Down-End of the Sloping "L" Antenna.

Know this about your Sloping "L" Antenna : You Should
Point It's Far-Down-End Toward the Direction of Interest.

IIRC - Somewhere It's In There* . . .
Antenna Models - 2nd Edition -by- L.B. Cebik [W4RNL]
http://www.antennex.com/Sshack/collect.htm
-ps- take it easy -or- you will nec yourself ;-}
EZNEC NEC - http://www.eznec.com/
-by- Roy Lewallen [W7EL]
--pps-- go ahead and nec yourself :-))
* -or- More Antenna Analysis Software . . .
http://www.dxzone.com/catalog/Softwa...enna_analysis/


it don't take a rocket scientist - iane ~ RHF {pomkia}
.
Are You Interested in building a better Shortwave Listening*
(SWL) Antenna ? {SWL Group} = http://tinyurl.com/ogvcf
GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
RHF's Standard "Shortwave Radio Listener (SWL) Antennas Group"
Reference Message Signature-Line = http://tinyurl.com/25zbrg
http://groups.google.com/group/rec.r...1dac3b4a1798e0
.
* Remember 55.5% of Shortwave Radio Listening (SWL)
is the Shortwave Antenna =http://tinyurl.com/ogvcf
.
RHF's Radio Shack in Twain Harte, California -USA-
SHACK INFO =http://tinyurl.com/2skmxm
Shortwave Radio / Receiver and SWL Antenna Info
.
-=2SKMXM=-
-=25ZBRG=-
SWR3:SWL:INFO
.
Learn ****ing punctuation, please.

Your prose is an insult.

Dave wrote:

Your prose is an insult.


You fill me with inertia


http://www.youtube.com/watch?v=Au9_vfx6t6c





bedazzled mike