On Apr 18, 12:22*pm, RHF wrote:
On Apr 18, 5:54*am, Dave wrote:


RHF wrote:

This is especially true for the Shortwave Listener using a
Ground Rod at Point 'A' with a 9:1 Matching Transformer
and Coax Cable feed-in-line.

What's Missing ? - Point 'B' for the Shortwave Radio Listener
(SWL) who does not have/make a Point 'B' in their backyard
-but- Does have both Points 'A' and 'C' the Sloper Antenna is a
very good 'choice' in Shortwave Radio Listener (SWL) Antennas.

While -IF- a Shortwave Radio Listener (SWL) has/can make all
three Points 'A', 'B' and 'C' in their backyard -then- AnInverted
"L" Antenna is a very good 'choice' in Shortwave Radio Listener
(SWL) Antennas.

Again - When the Shortwave Listener uses a Ground Rod at
Point 'A' with a 9:1 Matching Transformer and Coax Cable
feed-in-line with one or both of these SWL Antenna 'choices'.

- - ???
- -
- - You still have to keep the unshielded part away
- - from dirty mains electricity or you will pick up noise.

- Dave - TGWOS ~ RHF
-*.

David - That Goes With Out Saying ~ RHF

SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !

Wellbrook "Low Noise Antenna" 'design concept' using two
components they manufactu the Universal Magnetic Balun
(UMB) and the Antenna Feed Isolator (Feed-Line-Isolator).
http://www.wellbrook.uk.com/longwire.html

FWIW - This webpage has two Drawings / Diagrams :
"The Wrong Way" -and- "The Correct Way"
plus a brief description of the 'Whys' and 'Hows'
of this "Low Noise Antenna" design concept.

NOTE - These are labled as "Longwire" Antenna Baluns,
but in reality they are mostly used on the more common
"Random Wire" Antennas that the majority of SWLers
are able to build and use in their backyards or outside /
inside the house.

AGAIN - The Right-Way {and Wrong-Way} to Install
a LongWire {Random Wire} Antenna.
http://www.wellbrook.uk.com/longwire.html

Low Noise Longwire Antenna using the UMB -by- Wellbrook.
http://groups.google.com/group/rec.r...5cc467b35a70d5

The "Correct Way" to Install a Longwire Antenna and Balun
by Wellbrook - Using the Far-End Feed-Point Concept
http://groups.yahoo.com/group/Shortw.../message/11773

The "Correct Way" to Install a Longwire Antenna and Balun
by Wellbrook = http://www.wellbrook.uk.com/longwire.html
We have all most likely done it the wrong way more than once . . .

A 'key-point' that Wellbrook makes is the Five Metre (5m)
"Noise Zone" that exists around a House and getting the
Wire Antenna Element away {out} from this area.
http://www.wellbrook.uk.com/longwire.html

NOTE - The above "Correct Way" installation will ensure
that the Wire Antenna Element is 'outside' the local
Noise Zone which extends up to Five Metres (16 Feet)
around the House. Also the noise pickup is lower with
the feeder close to the ground -or- buried under the
ground a few inches.
-Why- The Antenna and the Balun are within the Local
Noise Zone RFI & EMF {Interference Area} that surrounds
most buildings up to distance of Five Metres (16 Feet).

Read - WHY - The Far-End-Fed Shortwave Listener's
(SWLs) Inverted "L" Antenna
http://groups.google.com/group/rec.r...cfc6b9cb2447c0


all i ask for is five metres beyond the noise - iane ~ RHF {pomkia}