Simple 4-Bander Five-Wire Shortwave Listener (SWL) Antenna
Rigged It : Horizontal -or- Sloper -or- Vertical
http://groups.yahoo.com/group/Shortw.../message/14060
.
Richards,
.
1 - I currently have a 4-Bander Horizontal Wire Antenna
using a TV type 300 Ohm to 75 Ohm Matching Transformer
and 75 Ohm RG6 Coax Cable feed-in-line.
.
2 - It can also be Rigged as a Sloper with a Couterpose
* Just 25 Foot Long
* Rig the Apex at 20 Feet with the Far-End at 8 Feet
* Use a 20 Foot Counterpose
* 22 Feet of Ground Space {Foot-Print} at 60 Degree Angle
* 18 Feet of Ground Space {Foot-Print} at 45 Degree Angle
.
3- For very "Limited' Space rig it as a Vertical
* Bottom Feed-Point at/near Ground Level
* Use a Ground Rod at the Base -if- possible
* Apex High-End-Point 25-26 Feet
.
Mutli-Element Shortwave Listening (SWL) Antenna :
.
Four Element "Flat" 5-Wire TV Rotor Cable 25 Foot Long
Rigged as a Horizontal Wire Antenna - a la John Doty
.
Laid-Out : South-West to North-East (Far End)
22 Foot Up about Two-Feet above the Back Roof
TV 'type' 300 Ohm to 75 Ohm Matching Transformer
RG6 Coax Cable Feed-in-Line about 25 Feet Long
.
- Feed-Point . . . . . . . . . . . Far-End -
.
o----------------------------------------------| 50 Feet Two
X----------------------------------------------| Wires Folded
.
X----------------------------------------------o 25 Feet Wire
.
X----------------------------------------------| 37.5 Feet 1 1/2
X----------------------o o---------------------| Wires Folded
12.5 Ft 1/2 Wire
.
= 50 Feet ~ 1/4 WL for 60M Shortwave Band ~ 5.0 MHz
= 37.5 Feet ~ 1/4 WL for 49M Shortwave Band ~ 6.1 MHz
= 25 Feet ~ 1/4 WL for 31M Shortwave Band ~ 9.6 MHz
= 12.5 Feet ~ 1/4 WL for 16M Shortwave Band ~ 17.8 MHz
.
"X" = Antenna Feed-Point Connection
"o" = End 'No' Connection
"|" = Wire-to-Wire Connection
.
.
build your own and give it a try - amaze yourself - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group = http://tinyurl.com/ogvcf
GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO = http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING = http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennen
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
|
|
|
/ \
........!.......

For One and All,
.
Some one on another Group pointed out that the old 5-Wire "Flat"
TV Rotor Cable is getting hard to find.
.
They noted that their RadioShack still had some of the more
common 3-Wire "Flat" TV Rotor Cable available.
.
RadioShack - 100-Ft. Rotator Control Cable (3-Wire)
http://www.radioshack.com/product/in...ductId=2049616
RadioShack Catalog # 15-1150
.
Plus they wanted a simple Multi-Band Horizontal Wire Antenna
to 'span' the 55 Foot distance across their backyard.
.
Simpler 3-Bander Horizontal Wire Antenna for
Shortwave Listening (SWL)
.
- Feed-Point . . . . . . . . . . . . . Far-End -
.
A X------------------------------------------------o 48 Feet ~ 60m
.
B X-----------------------------------o_o--------o 39 Feet ~ 49m
.
C X-----------------------------o_o--------------o 33 Feet ~ 41m
.
A = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
B = 39 Feet ~ 1/4 WL for 49 Metre Shortwave Band ~ 5.9 MHz
C = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 MHz
.
"X" = Antenna Feed-Point Connection
"-" = Wire Antenna Element
"o" = End 'No' Connection
"_" = One Inch Gap {Space between the Wire Ends}
.
Note # 1 - Do Not Separate The Wires - Maintaining the Integrity
of the Wire Bundle throughout it's length : Except at the
Feed-Point where the Wires may be separated for about 2-Inches
and Stripped and Soldered for about an Inch for Connection to
the Matching Transformer.
.
Note # 2 - Cut the One Inch Gap {Space between the Wire Ends}
very carefully using an Exacto Knife and remove the piece of
Wire while maintaining the integrity of the Wire Bundle.
.
Note # 3 - All of Wire "A' is used; the Far-End 9-Feet Remnant
of "B" is not used; and the Far-End 15-Feet Remnant of "C" is
not used. However they are maintained in the Wire Bundle to
give it uniform strength throughout it's length.
.
Note # 4 - Mounting Height 1/2 A (24 Ft) to 1/2 C (16 Ft)
.
Note # 5 - Use a Longwire {Random Wire} Matching Transformer
and Coax Cable feed-in-line with a good earthen Ground (Rod).
.
MAKE IT LONGER BY TWO SHORTWAVE BANDS :
A = 71 Feet ~ 1/4 WL for 90 Metre Shortwave Band ~ 3.2 Mhz
B = 60 Feet ~ 1/4 WL for 75 Metre Shortwave Band ~ 3.9 Mhz
C = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
.
MAKE IT SHORTER BY TWO SHORTWAVE BANDS :
A = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 Mhz
B = 24 Feet ~ 1/4 WL for 31 Metre Shortwave Band ~ 9.4 Mhz
C = 20 Feet ~ 1/4 WL for 25 Metre Shortwave Band ~ 11.6 MHz
.
.
build your own and give it a try - amaze yourself - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group = http://tinyurl.com/ogvcf
GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO = http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING = http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennen
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
|
|
|
/ \
........!.......

On Aug 1, 4:11 am, RHF wrote:
For One and All,
.
Some one on another Group pointed out that the old 5-Wire "Flat"
TV Rotor Cable is getting hard to find.
.
They noted that their RadioShack still had some of the more
common 3-Wire "Flat" TV Rotor Cable available.
.
RadioShack - 100-Ft. Rotator Control Cable (3-Wire)http://www.radioshack.com/product/in...ductId=2049616
RadioShack Catalog # 15-1150
.
Plus they wanted a simple Multi-Band Horizontal Wire Antenna
to 'span' the 55 Foot distance across their backyard.
.

- Simpler 3-Bander Horizontal Wire Antenna for Shortwave Listening
(SWL)

REF Message # 14069
http://groups.yahoo.com/group/Shortw.../message/14069

.
- Feed-Point . . . . . . . . . . . . . Far-End -
.
A X------------------------------------------------o 48 Feet ~ 60m
.
B X-----------------------------------o_o--------o 39 Feet ~ 49m
.
C X-----------------------------o_o--------------o 33 Feet ~ 41m
.
A = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
B = 39 Feet ~ 1/4 WL for 49 Metre Shortwave Band ~ 5.9 MHz
C = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 MHz
.
"X" = Antenna Feed-Point Connection
"-" = Wire Antenna Element
"o" = End 'No' Connection
"_" = One Inch Gap {Space between the Wire Ends}
.
Note # 1 - Do Not Separate The Wires - Maintaining the Integrity
of the Wire Bundle throughout it's length : Except at the
Feed-Point where the Wires may be separated for about 2-Inches
and Stripped and Soldered for about an Inch for Connection to
the Matching Transformer.
.
Note # 2 - Cut the One Inch Gap {Space between the Wire Ends}
very carefully using an Exacto Knife and remove the piece of
Wire while maintaining the integrity of the Wire Bundle.
.
Note # 3 - All of Wire "A' is used; the Far-End 9-Feet Remnant
of "B" is not used; and the Far-End 15-Feet Remnant of "C" is
not used. However they are maintained in the Wire Bundle to
give it uniform strength throughout it's length.
.
Note # 4 - Mounting Height 1/2 A (24 Ft) to 1/2 C (16 Ft)
.
Note # 5 - Use a Longwire {Random Wire} Matching Transformer
and Coax Cable feed-in-line with a good earthen Ground (Rod).
.
MAKE IT LONGER BY TWO SHORTWAVE BANDS :
A = 71 Feet ~ 1/4 WL for 90 Metre Shortwave Band ~ 3.2 Mhz
B = 60 Feet ~ 1/4 WL for 75 Metre Shortwave Band ~ 3.9 Mhz
C = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
.
MAKE IT SHORTER BY TWO SHORTWAVE BANDS :
A = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 Mhz
B = 24 Feet ~ 1/4 WL for 31 Metre Shortwave Band ~ 9.4 Mhz
C = 20 Feet ~ 1/4 WL for 25 Metre Shortwave Band ~ 11.6 MHz
.
.
build your own and give it a try - amaze yourself - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group =http://tinyurl.com/ogvcf
GoTo =http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO =http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING =http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennenhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
|
|
|
/ \
.......!.......

- - - In ,
- - - "F C" march181959@... wrote:
http://groups.yahoo.com/group/Shortw.../message/14085
-
- That looks simple enough and a good workable solution.
-
- I was confused about the A,B,C feed points.
-
- Are these all spliced together to the feed in line.
- or are they separated by a switch so that they are
- used separately on each respective band?
-
- Thanks
-
- FC
-

FC,

Simpler 3-Bander Horizontal Wire Antenna for Shortwave Listening
(SWL) - Message # 14039
http://groups.yahoo.com/group/Shortw.../message/14069
.
"A" and "B" and "C" are simply Designators for the 'individual'
Antenna Wires in the Three Wire Rotor Cable
.
At the Feed-Point "X" are three Wires are Connected together.
.
- Feed-Point . . . . . . . . . . . . . Far-End -
.
A X----------------------------------------------o 48 Feet ~ 60m
.
B X-----------------------------------o_o--------o 39 Feet ~ 49m
.
C X-----------------------------o_o--------------o 33 Feet ~ 41m
.
A = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
B = 39 Feet ~ 1/4 WL for 49 Metre Shortwave Band ~ 5.9 MHz
C = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 MHz
.
"X" = Antenna Feed-Point Connection-Point for All Three Wires
"-" = Wire Antenna Element
"o" = End 'No' Connection
"_" = One Inch Gap {Space between the Wire Ends}
.
.
* * * REVISION * * *
.
Re-Order the Three Wires with the {Un-Cut} "A" in the Center
and the "Cut" "B" and "C" Wires on the Out-Side.
.
B X-----------------------------------o_o--------'b' 39 Feet ~ 49m
.
A X----------------------------------------------'a' 48 Feet ~ 60m
.
C X-----------------------------o_o--------------'c' 33 Feet ~ 41m
.
WHY - This 'places' the Two Wires that have to be "Cut" with
a One-Inch piece {Gap} remove on the Out-Side to make the build
process a little easier.
.
* * * ALTERATION * * *
.
The 'b' Far-End 9-Feet Remnant of "B" can be joined to the
'c' Far-End 15-Feet Remnant of "C" to form a bent 24 Foot
passively-coupled Antenna Element for the 31m Band. Can't
hurt and may help.
.
* * * THE FEED=POINT CONNECTION * * *
.
This is a Multi-Element Antenna that is "Cut' for Three
Shortwave Bands. The Feed-in-Line can be a Coax Cable
with the Inner Conductor 'connected' to the Wire Antenna
Elements -and- having the Outer-Shield of the Coax Cable
Grounded at/in the Radio Shack.
.
NOTE - The use of a 9:1 Matching Transformer between the
Antenna Elements and the Coax Cable feed-in-line is "Optional"
-but- May provide better performance. In this instance
the Matching Transformer* would be Wired :
.
Nine-Side : Antenna Element Wires and the Outer-Shield of
the Coax Cable.
.
One-Side : Inner Conductor of the Coax Cable and the Outer
Shield of the Coax Cable.
.
* This configuation of the Matching Transformer is a
'so-called' Magnetic Longwire Balun (MLB)
.
.
hope this helps - iane ~ RHF
.
Question About - The 3-Bander Rotor Cable SWL Antenna
http://groups.yahoo.com/group/Shortw.../message/14086
.
.
.. .

= = = On Aug 1, 4:15 am, RHF wrote:
On Aug 1, 4:11 am, RHF wrote:

For One and All,
.
Some one on another Group pointed out that the old 5-Wire "Flat"
TV Rotor Cable is getting hard to find.
.
They noted that their RadioShack still had some of the more
common 3-Wire "Flat" TV Rotor Cable available.
.
RadioShack - 100-Ft. Rotator Control Cable (3-Wire)http://www.radioshack.com/product/in...ductId=2049616
RadioShack Catalog # 15-1150
.
Plus they wanted a simple Multi-Band Horizontal Wire Antenna
to 'span' the 55 Foot distance across their backyard.
.

- Simpler 3-Bander Horizontal Wire Antenna for Shortwave Listening
(SWL)

REF Message # 14069http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/14069



.
- Feed-Point . . . . . . . . . . . . . Far-End -
.
A X------------------------------------------------o 48 Feet ~ 60m
.
B X-----------------------------------o_o--------o 39 Feet ~ 49m
.
C X-----------------------------o_o--------------o 33 Feet ~ 41m
.
A = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
B = 39 Feet ~ 1/4 WL for 49 Metre Shortwave Band ~ 5.9 MHz
C = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 MHz
.
"X" = Antenna Feed-Point Connection
"-" = Wire Antenna Element
"o" = End 'No' Connection
"_" = One Inch Gap {Space between the Wire Ends}
.
Note # 1 - Do Not Separate The Wires - Maintaining the Integrity
of the Wire Bundle throughout it's length : Except at the
Feed-Point where the Wires may be separated for about 2-Inches
and Stripped and Soldered for about an Inch for Connection to
the Matching Transformer.
.
Note # 2 - Cut the One Inch Gap {Space between the Wire Ends}
very carefully using an Exacto Knife and remove the piece of
Wire while maintaining the integrity of the Wire Bundle.
.
Note # 3 - All of Wire "A' is used; the Far-End 9-Feet Remnant
of "B" is not used; and the Far-End 15-Feet Remnant of "C" is
not used. However they are maintained in the Wire Bundle to
give it uniform strength throughout it's length.
.
Note # 4 - Mounting Height 1/2 A (24 Ft) to 1/2 C (16 Ft)
.
Note # 5 - Use a Longwire {Random Wire} Matching Transformer
and Coax Cable feed-in-line with a good earthen Ground (Rod).
.
MAKE IT LONGER BY TWO SHORTWAVE BANDS :
A = 71 Feet ~ 1/4 WL for 90 Metre Shortwave Band ~ 3.2 Mhz
B = 60 Feet ~ 1/4 WL for 75 Metre Shortwave Band ~ 3.9 Mhz
C = 48 Feet ~ 1/4 WL for 60 Metre Shortwave Band ~ 4.7 MHz
.
MAKE IT SHORTER BY TWO SHORTWAVE BANDS :
A = 33 Feet ~ 1/4 WL for 41 Metre Shortwave Band ~ 7.1 Mhz
B = 24 Feet ~ 1/4 WL for 31 Metre Shortwave Band ~ 9.4 Mhz
C = 20 Feet ~ 1/4 WL for 25 Metre Shortwave Band ~ 11.6 MHz
.
.
build your own and give it a try - amaze yourself - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group =http://tinyurl.com/ogvcf
GoTo =http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS =http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO =http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING =http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennenhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWLhttp://groups.yahoo..com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
|
|
|
/ \
.......!.......- Hide quoted text -

- Show quoted text -

FO&A,

This Week's 'new' Shortwave Listening (SWL) Antenna :

Linear Twin (2) Element Horizontal Wire Antenna - End-Fed Windom
Antenna
http://groups.yahoo.com/group/Shortw.../message/14164
63 Feet Long - - - a la John Doty

Laid-Out : South-East to North-West (Far End) from
the Back of he Roof of the House to the Backyard

TV 'type' 300 Ohm to 75 Ohm Matching Transformer

-Note- These are the Larger 3/4" Round Barrel ones that
are usually provided with TV and FM Antennas and can be
bougth in Stores. They seem to work better as a Low Cost
Shortwave Antenna Matching Transformer; than the smaller
1/2" Round Barreled ones that are much cheaper.

RG6 Quad Coax Cable Feed-in-Line about 25 Feet Long

? WHY ? Two End-to-End "Linner" Horizontal Wires ?
MT:==================-------------------------------o
24 Feet Twin Lead and 39 Feet Litz Wire
..
* The 24 Feet of 300 Ohm Twin Lead is connected across
the 300 Ohm Side of the Matching Transformer.

* The 39 Feet of Litz Wire [ 50-Strands of # 41 AWG ] is
connected to one side of the Twin Lead. - Note the other
side of the Twin Lead is not connected at the Far-End it
Floats in Parallel.

* The Total Length is 63 Feet for the Longer

* Note the Shorter Wire is 24 Feet and it's Far-End is not
'connected; and this "other' Side of the Twin Lead Floats
in Parallel to the Longer Side.
..
Sort of : Acts like One Wire -and- Acts like Three Wires :

* 63 Feet ~ 1/4 WL for 75m Shortwave Band
~ 3.9 ~ 7.8 ~ 11.7 ~ 15.6 ~ 19.5 ~ 23.4 ~ 27.3

* 39 Feet ~ 1/4 WL for 49m Shortwave Band
~ 5.9 ~ 11.8 ~ 17.7 ~ 23.6 ~ 29.5

* 24 Feet ~ 1/4 WL for 31m Shortwave Band
~ 9,4 ~ 18.8 ~ 28.2

Currently Rigged "Flat" at about 17~18 Feet above ground level.

Might call it an End-Fed Windom Antenna . . . . .
..
..
Remember 55.5% of Shortwave Radio Listening (SWL)
is the Shortwave Antenna = http://tinyurl.com/ogvcf
.
.
it's time to get linear linear with an end-fed windom - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group = http://tinyurl.com/ogvcf
GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO = http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING = http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennen
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
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FO&A,

This Week's 'new' Shortwave Listening (SWL) Antenna :

Linear Twin (2) Element Horizontal Wire Antenna - End-Fed Windom
Antenna
http://groups.yahoo.com/group/Shortw.../message/14164
63 Feet Long - - - a la John Doty

Laid-Out : South-East to North-West (Far End) from
the Back of he Roof of the House to the Backyard

TV 'type' 300 Ohm to 75 Ohm Matching Transformer

-Note- These are the Larger 3/4" Round Barrel ones that
are usually provided with TV and FM Antennas and can be
bougth in Stores. They seem to work better as a Low Cost
Shortwave Antenna Matching Transformer; than the smaller
1/2" Round Barreled ones that are much cheaper.

RG6 Quad Coax Cable Feed-in-Line about 25 Feet Long

? WHY ? Two End-to-End "Linner" Horizontal Wires ?
MT:==================-------------------------------o
24 Feet Twin Lead and 39 Feet Litz Wire
..
* The 24 Feet of 300 Ohm Twin Lead is connected across
the 300 Ohm Side of the Matching Transformer.

* The 39 Feet of Litz Wire [ 50-Strands of # 41 AWG ] is
connected to one side of the Twin Lead. - Note the other
side of the Twin Lead is not connected at the Far-End it
Floats in Parallel.

* The Total Length is 63 Feet for the Longer

* Note the Shorter Wire is 24 Feet and it's Far-End is not
'connected; and this "other' Side of the Twin Lead Floats
in Parallel to the Longer Side.
..
Sort of : Acts like One Wire -and- Acts like Three Wires :

* 63 Feet ~ 1/4 WL for 75m Shortwave Band
~ 3.9 ~ 7.8 ~ 11.7 ~ 15.6 ~ 19.5 ~ 23.4 ~ 27.3

* 39 Feet ~ 1/4 WL for 49m Shortwave Band
~ 5.9 ~ 11.8 ~ 17.7 ~ 23.6 ~ 29.5

* 24 Feet ~ 1/4 WL for 31m Shortwave Band
~ 9,4 ~ 18.8 ~ 28.2

Currently Rigged "Flat" at about 17~18 Feet above ground level.

Might call it an End-Fed Windom Antenna . . . . .
..
..
Remember 55.5% of Shortwave Radio Listening (SWL)
is the Shortwave Antenna = http://tinyurl.com/ogvcf
.
.
it's time to get linear linear with an end-fed windom - iane ~ RHF
{pomkia}
.
Shortwave Listener (SWL) Antennas Group = http://tinyurl.com/ogvcf
GoTo = http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
The SWL Antenna Discussion Group = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna HELP = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna NEWS = http://tinyurl.com/ogvcf
Shortwave Listener (SWL) Antenna INFO = http://tinyurl.com/ogvcf
* * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers'
plus plain old "Mister-Know-It-Alls"; and even those Newbees with
"I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ "
.
The Shortwave Listener's Blessing :
SWL BLESSING = http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennen
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
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