RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

For One and All,
.
RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
http://groups.yahoo.com/group/Shortw.../message/11762
.
I 'guess' a RF Systems "MLB" {Magnetic Longwire Balun}
http://www.rf-systems.nl/pdf/mlb.pdf
http://www.universal-radio.com/catalog/sw_ant/1484.html
http://www.hard-core-dx.com/nordicdx...d/magbal1.html
http://www.universal-radio.com/catalog/sw_ant/1465.html
http://www.xs4all.nl/~deltron/MLB-ENG.pdf
http://www.universal-radio.com/catalog/sw_ant/4067.html
http://www.qsl.net/wars/construct/mlb.htm
http://www.universal-radio.com/catal.../1465chrt.html
http://www.hard-core-dx.com/nordicdx...d/magbal2.html
Can be looked at as a Series-&-Parallel Transformer
with a common ground for both Windings.

A C
| |
/ |
/ |
/ \
/ \
/ |
/ |
| |
-G-

A = Antenna {Longwire} Termenation/Connection
C - Coax Cable {Center-Conductor} Connection
G = Ground Coax Cable {Outer-Shield} Connection
.
A-to-G and C-to-G would read as near DC "Shorts"
since they are short pieces of Copper Wire.
- - - Also A-to-C would read as a near DC Short
due to the Series Circuit Path.
.
Inductively [AC & RF ] A-to-G and C-to-G would
each read as Reactance and function as an AC
Parallel Circuit Path.
.
Two MLBs : RF Systems -v- RF Junkie
http://www.suertenich.com/html/radio...ire_balun.html
Shortwave Listener (SWL) Longwire / Random Wire
[ SWL Antenna Matchers by RF Junkie ]
http://www.geocities.com/qrp_baluns/LM.html
http://www.geocities.com/qrp_baluns/LMZ-50.html
http://www.geocities.com/qrp_baluns/LMZ-75.html
http://www.geocities.com/qrp_baluns/app-lmz-75.html
.
List - Magnetic Longwire Baluns (MLBs)
MLBs = http://tinyurl.com/yhgz2e
http://wiki.radioreference.com/index...uns_.28MLBs.29

"Secrets of the Universe Revealed"
Look - Inside View of the RF Systems Magnetic
Longwire Balun (MLB) - X-Rays and More . . .
http://www.remeeus.eu/english/hamradio/mlb.htm
.
"That Something Extra"
Read - The RF Systems Magnetic Longwire Balun
and N8KDV's 10:1 Matching Transformer
http://www.iserv.net/~n8kdv/xfmr.htm


mlb - at least that is the way i see it - iane ~ RHF
.
.
I-B Somewhere on "The Big Blue Marble"
http://en.wikipedia.org/wiki/The_Blue_Marble
{ Earth - The Third Planet from the Sun }
http://en.wikipedia.org/wiki/Third_planet_from_the_Sun
.
Shortwave Listener Antennas = http://tinyurl.com/ogvcf
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL Antenna Group = http://tinyurl.com/ogvcf
.
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/
.
Ð’Ñ�е Ð*адушны ! - - - Группа оператора
на приеме коротковолнового диапазона
Radio дл� 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/
.
|
|
|
/ \
........!.......

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

On 23 Dec 2006 01:06:24 -0800, "RHF"
wrote:

For One and All,

Can be looked at as a Series-&-Parallel Transformer
with a common ground for both Windings.

A C
| |
/ |
/ |
/ \
/ \
/ |
/ |
| |
-G-

A = Antenna {Longwire} Termenation/Connection
C - Coax Cable {Center-Conductor} Connection
G = Ground Coax Cable {Outer-Shield} Connection
.
A-to-G and C-to-G would read as near DC "Shorts"
since they are short pieces of Copper Wire.
- - - Also A-to-C would read as a near DC Short
due to the Series Circuit Path.
.
Inductively [AC & RF ] A-to-G and C-to-G would
each read as Reactance and function as an AC
Parallel Circuit Path.
.
Two MLBs : RF Systems -v- RF Junkie

http://www.geocities.com/qrp_baluns/LM.html
http://www.geocities.com/qrp_baluns/LMZ-50.html
http://www.geocities.com/qrp_baluns/LMZ-75.html
http://www.geocities.com/qrp_baluns/app-lmz-75.html

http://www.palomar-engineers.com/MLB-1/mlb-1.html

List - Magnetic Longwire Baluns (MLBs)
MLBs = http://tinyurl.com/yhgz2e
http://wiki.radioreference.com/index...uns_.28MLBs.29

"Secrets of the Universe Revealed"
Look - Inside View of the RF Systems Magnetic
Longwire Balun (MLB) - X-Rays and More . . .
http://www.remeeus.eu/english/hamradio/mlb.htm
.
"That Something Extra"
Read - The RF Systems Magnetic Longwire Balun
and N8KDV's 10:1 Matching Transformer
http://www.iserv.net/~n8kdv/xfmr.htm


mlb - at least that is the way i see it - iane ~ RHF
.
.
I-B Somewhere on "The Big Blue Marble"
http://en.wikipedia.org/wiki/The_Blue_Marble
{ Earth - The Third Planet from the Sun }
http://en.wikipedia.org/wiki/Third_planet_from_the_Sun
.
Shortwave Listener Antennas = http://tinyurl.com/ogvcf
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL Antenna Group = http://tinyurl.com/ogvcf
.
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/
.
??? ??????? ! - - - ?????? ?????????
?? ?????? ???????????????? ?????????
Radio ??? A????? 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/
.
|
|
|
/ \
.......!.......

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

RHF wrote:
...
.......!.......


http://www.hard-core-dx.com/nordicdx.../9_1balun.html

JS

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

John Smith wrote:

RHF wrote:
...
.......!.......


http://www.hard-core-dx.com/nordicdx.../9_1balun.html

And an alternative to that, and the method in use here, is to have a separate
ground coming off the balun and then ground the coax feed where it enters the
house.

Using that method there is no connection between the two windings on the toroid.

dxAce
Michigan
USA

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

RHF wrote:
...

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=5979

JS

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

Next thing we know,,,, AWOL MORON QUEER BISEXUAL GAY bush will be
declareing Wire a Weapon of Mass Destruction and it will be illegal for
anybody in the World to own any Wire.
cuhulin

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

RHF wrote:
For One and All,
.
RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?

snip
I've got one, not that I use it anymore. It seems to be the only balun
with low frequency specs. I did MW reception with it, but I never
compared it to the ham baluns.

Get a Wellbrook.

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

wrote:
...
Get a Wellbrook.


http://www.wellbrook.uk.com/longwire.html

Interesting instructions. Looks like the "correct way" utilizes a 9:1
voltage balun between feed and antenna and a 1:1 current balun (called
isolator "AFI 5030" in the diagram) between other end of feed and the rig.

Regards,
JS

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

RF Systems "MLB" {Magnetic Longwire Balun} - What Is It ?
 

John Smith wrote:
wrote:
...
Get a Wellbrook.


http://www.wellbrook.uk.com/longwire.html

Interesting instructions. Looks like the "correct way" utilizes a 9:1
voltage balun between feed and antenna and a 1:1 current balun (called
isolator "AFI 5030" in the diagram) between other end of feed and the rig.

Regards,
JS

Sorry 'bout that cheif. Get a Wellbrook active loop. I use the ALA100.
I forgot Wellbrook made that balun.