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Build-Your-Own - Radio Shack Inverted "V" Multi-Band Shortwave Antenna



 
 
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  #1  
Old February 18th 07, 11:28 AM posted to rec.radio.shortwave
RHF
external usenet poster
 
Posts: 8,677
Default Build-Your-Own - Radio Shack Inverted "V" Multi-Band Shortwave Antenna

OK so there was this eBay Auction for a old {Discontinued}
Radio Shack Inverted "V" Multi-Band Shortwave Antenna
formerly RadioShack Catalog # 20-181
* 65 Feet overall length (32.5 ft each leg)
* Multi-Band trap covers 60,49,41,31,25,21,19,16 and 11 Meters.
* Installation instructions included in package

Please Note - That this eBay Auction is CLOSED [OVER-ENDED]
http://cgi.ebay.com/ws/eBayISAPI.dll...m=160079232598

But it got me to thinking about Building-My-Own
Inverted "V" Multi-Band Shortwave Antenna

Build-Your-Own - Radio Shack Inverted "V" Multi-Band Shortwave
Antenna
http://groups.yahoo.com/group/Shortw.../message/12289

PARTS

1 - The center piece of this Antenna was a PL-259 T-Adapter
RadioShack Catalog #: 278-198
http://www.radioshack.com/product/in...ductId=2103320
This UHF M-358 T-Adapter connects Two SO-239 Jacks to One PL-259
Plug.

2 - Standard PL-259 UHF-Type Coaxial Connector (2-Pack)
RadioShack Catalog #: 278-205
http://www.radioshack.com/product/in...ductId=2103402
The Twin Five-Wire Multi-Elements-Antenna-Arms ended in
PL-259 Plugs with all Five Wires Soldered to the Center
Connector of the Plug for one-side and the other-side had
all Five Wires Soldered to the Outer Housing of the Plug.
Effectively wiring them through the T-Adapter as a Dipole.

3 - 100' Five Conductor [Flat] Antenna Rotor Cable
Belden Part # 8463 = http://cgi.ebay.com/_W0QQitemZ330020555066

4 - 50-Ft. RG-58 Coax Cable Assembly for the Feed-in-Line
RadioShack Catalog #: 278-971
http://www.radioshack.com/product/in...ductId=2103483

CONSTRUCTION - Wire Antenna Element Construction :

* First Cut the Rotor Cable in Two Halves 50-Feet Each

* Strip and Tin the Wires at one end of each of the Halves
and Solder them all to one each of the Two PL-259 Plugs
as outlined above.

At the Measured Lengths from the Plugs 'Cut' and Inch of the Wire
from that one Element of the Five Wires in the Rotor Cable.

NOTE - These Wire "Cut" Lengths are for an Inverted "V" set at
30 Degrees off the Horizontal [Flat] -or- 60 Degrees off the Vertical
and are 5% Shorter that a Standard [Flat] Dipole Antenna's Numbers.

* Starting with the Longest Pair of Antenna Elements cut to 45.3
Feet
which would give a Tip-to-Tip Length of 90.6 Feet.
{ Cut for the 60-Meter Band ~ 4400–5100 kHz }

* Next the Second Pair of Antenna Elements cut to 36.6 Feet
which would give a Tip-to-Tip Length of 73.2 Feet.
{ Cut for the 49-Meter Band ~ 5800–6300 kHz }

* Then the Third Pair of Antenna Elements cut to 30.2 Feet
which would give a Tip-to-Tip Length of 60.5 Feet.
{ Cut for the 41-Meter Band ~ 7100–7600 kHz }

* Followed-by the Fourth Pair of Antenna Elements cut to 23.3 Feet
which would give a Tip-to-Tip Length of 46.6 Feet.
{ Cut for the 31-Meter Band ~ 9250–9995 kHz }

* Ending with the Fifth Pair of Antenna Elements cut to 18.7 Feet
which would give a Tip-to-Tip Length of 37.4 Feet.
{ Cut for the 25-Meter Band ~ 11.50–12.16 MHz }

* Coverage 60, 49, 41, 31 and 25 Meter International Shortwave Bands
SW BANDS = http://en.wikipedia.org/wiki/Shortwave_bands
http://en.wikipedia.org/wiki/Shortwa...dcasting_bands

* Take the Un-Soldered-End of each of the Rotor Cables and
Fold-it-Over 4"-6"and secure a Nylon-Poly Rigging Rope to it.

* Assemble the Two PL-259 Plugs to the T-Adapter.

* Attach {Secure} a Nylon-Poly Rigging Rope to the T-Adapter.

* Connect the RG-58 Coax Cable to the T-Adapter.

* Rig the Center at about 45 Feet above the ground and the
Tips at about 20 Feet above the ground.

* Connect the Coax Cable to the Radio/Receiver.


ok so -if- 'v' is for victory . . . then surely the multi-band
inverted 'v' antenna is for good shortwave listening - 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/
.
Все *адушны ! - - - Группа оператора
на приеме коротковолнового диапазона
Radio для Aнтенн 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/
.
|
|
|
/ \
........!.......

  #2  
Old February 21st 07, 12:38 AM posted to rec.radio.shortwave
RHF
external usenet poster
 
Posts: 8,677
Default Build-Your-Own - Radio Shack Inverted "V" Multi-Band Shortwave Antenna

= = = In ,
= = = "wa7zyq" wa7zyq@... wrote:
-
- Note that this is not any form of dipole
- it is basically a center tapped long wire.
-

WA7ZYQ - OK - IS IT A DIPOLE ?
WHAT MAKES IT A DIPOLE -OR- INVERTED "V" ANTENNA ?
http://groups.yahoo.com/group/Shortw.../message/12303

RE-READ # 2 - Standard PL-259 UHF-Type Coaxial
Connector (2-Pack) - RadioShack Catalog #: 278-205
http://www.radioshack.com/product/in...ductId=2103402
The Twin Five-Wire Multi-Elements-Antenna-Arms ended in
PL-259 Plugs with all Five Wires Soldered to the Center
Connector of the Plug for one-side and the other-side had
all Five Wires Soldered to the Outer Housing of the Plug.
Effectively wiring them through the T-Adapter as a Dipole.

IF - You 'wire' the one PL-259 Plug {Right-Side} with
the 5-Wires soldered to the Center Pin.

AND - You 'wire' the other PL-259 Plug {Left-Side} with
the 5-Wires soldered to the Outer {Shield} Housing.

AND - You use the T-Adapter with a Coax Cable feed-in-line.

THEN - You have 'wired' the Antenna Elements as a "Dipole".

NOTE - A Multi-Element "Dipole" Antenna with each of the
Five Sets {Pairs} of Inverted "V" Arms 'cut' {1/4 WL-5%}
to a specific Shortwave Band 60M, 49M, 41M, 31M and 25M.

hope that this clarifies the 'dipole' issue - 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
.
|
|
|
/ \
........!.......

= = = On Feb 18, 3:28*am, "RHF" wrote:
OK so there was this eBay Auction for a old {Discontinued}
Radio Shack Inverted "V" Multi-Band Shortwave Antenna
formerly RadioShack Catalog # 20-181
* *65 Feet overall length (32.5 ft each leg)
* *Multi-Band trap covers 60,49,41,31,25,21,19,16 and 11 Meters.
* *Installation instructions included in package

Please Note - That this eBay Auction is CLOSED [OVER-ENDED]http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=160079232598

But it got me to thinking about Building-My-Own
Inverted "V" Multi-Band Shortwave Antenna

Build-Your-Own - Radio Shack Inverted "V" Multi-Band Shortwave
Antennahttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/12289

PARTS

1 - The center piece of this Antenna was a PL-259 T-Adapter
RadioShack Catalog #: 278-198http://www.radioshack.com/product/index.jsp?productId=2103320
This UHF M-358 T-Adapter connects Two SO-239 Jacks to One PL-259
Plug.

2 - Standard PL-259 UHF-Type Coaxial Connector (2-Pack)
RadioShack Catalog #: 278-205http://www.radioshack.com/product/index.jsp?productId=2103402
The Twin Five-Wire Multi-Elements-Antenna-Arms ended in
PL-259 Plugs with all Five Wires Soldered to the Center
Connector of the Plug for one-side and the other-side had
all Five Wires Soldered to the Outer Housing of the Plug.
Effectively wiring them through the T-Adapter as a Dipole.

3 - 100' Five Conductor [Flat] Antenna Rotor Cable
Belden Part # 8463 =http://cgi.ebay.com/_W0QQitemZ330020555066

4 - 50-Ft. RG-58 Coax Cable Assembly for the Feed-in-Line
RadioShack Catalog #: 278-971http://www.radioshack.com/product/index.jsp?productId=2103483

CONSTRUCTION - Wire Antenna Element Construction :

* *First Cut the Rotor Cable in Two Halves 50-Feet Each

* *Strip and Tin the Wires at one end of each of the Halves
and Solder them all to one each of the Two PL-259 Plugs
as outlined above.

At the Measured Lengths from the Plugs 'Cut' and Inch of the Wire
from that one Element of the Five Wires in the Rotor Cable.

NOTE - These Wire "Cut" Lengths are for an Inverted "V" set at
30 Degrees off the Horizontal [Flat] -or- 60 Degrees off the Vertical
and are 5% Shorter that a Standard [Flat] Dipole Antenna's Numbers.

* *Starting with the Longest Pair of Antenna Elements cut to 45.3
Feet
which would give a Tip-to-Tip Length of 90.6 Feet.
{ Cut for the 60-Meter Band ~ 4400–5100 kHz }

* *Next the Second Pair of Antenna Elements cut to 36.6 Feet
which would give a Tip-to-Tip Length of 73.2 Feet.
{ Cut for the 49-Meter Band ~ 5800–6300 kHz }

* *Then the Third Pair of Antenna Elements cut to 30.2 Feet
which would give a Tip-to-Tip Length of 60.5 Feet.
{ Cut for the 41-Meter Band ~ 7100–7600 kHz }

* *Followed-by the Fourth Pair of Antenna Elements cut to 23.3 Feet
which would give a Tip-to-Tip Length of 46.6 Feet.
{ Cut for the 31-Meter Band ~ 9250–9995 kHz }

* *Ending with the Fifth Pair of Antenna Elements cut to 18.7 Feet
which would give a Tip-to-Tip Length of 37.4 Feet.
{ Cut for the 25-Meter Band ~ 11.50–12.16 MHz }

* *Coverage 60, 49, 41, 31 and 25 Meter International Shortwave Bands
SW BANDS =http://en.wikipedia.org/wiki/Shortwa...nal_broadcasti...

* *Take the Un-Soldered-End of each of the Rotor Cables and
Fold-it-Over 4"-6"and secure a Nylon-Poly Rigging Rope to it.

* *Assemble the Two PL-259 Plugs to the T-Adapter.

* *Attach {Secure} a Nylon-Poly Rigging Rope to the T-Adapter.

* *Connect the RG-58 Coax Cable to the T-Adapter.

* *Rig the Center at about 45 Feet above the ground and the
Tips at about 20 Feet above the ground.

* *Connect the Coax Cable to the Radio/Receiver.

ok so -if- 'v' is for victory . . . then surely the multi-band
inverted 'v' antenna is for good shortwave listening - 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/
*.
Все *адушны ! - - - Группа оператора
на приеме коротковолнового диапазона
Radio для Aнтенн 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/
*.
*|
*|
*|
/ \
.......!.......



 




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