SWL Newbies : The Magnetic Long-Wire Antenna Balun - A Balun It Ain't
 

Subject-Line was : Shortwave Radio Listening (SWL)
Longwire Antenna Balun Question ?
http://groups.google.com/group/rec.r...63c227f1b034e1
-
- However, there's one thing which I note (just a quick look)
- on several of the websites, and that is the transformer is
- repeatedly referred to as a 'balun'.
-
- It isn't. I suspect that it's because they are using the same
- transformer as the type used in a balun but, in this application,
- a balun it ain't!
- --
- Ian
-

Ian,

The Magnetic Long-Wire Antenna Balun
- A Balun It Ain't ! - But It Works :o)

NOTE - This is a Resource Message for
Shortwave Radio Listener (SWL) Newbies.

Some people as a result of the coining of the Word "Balun"
[Bal-Un] for Balanced-to-Unbalance Matching Transformer :
Also like to use the Word "Unun" [Un-Un] for the Unbalance-
to-Unbalanced Matching Transformer.

"Balun" a specific Contraction becoming an inclusive Buzz Word
relegated to commonly misused technical Jargon.
http://en.wikipedia.org/wiki/Balun

Most of these Matching Transformers used between Single Wire
Antenna Elements and Coax Cable are 'not' Baluns but Ununs
since the Match-up an Unbalanced Antenna Element with an
Unbalanced Coax Calbe feed-in-line.

Many Manufactures have come-up with Trade Marked Names
for these Products like :

* Magnetic Longwire Balun (MLB)
-by- RF Systems
http://www.rf-systems.nl/pdf/mlbm.pdf

* Magnetic Longwire Balun(MLB-1)
-by- Palomar Enginers
http://www.palomar-engineers.com/MLB-1/mlb-1.html

* Long Wire Antenna Adapter (LWA) LWA-0130
-by- WinRadio
http://www.winradio.com/home/lwa.htm

* Longwire Balun 9:1 Transformer
-by- LowBander
http://cgi.ebay.com/_W0QQitemZ180227972387

* Universal Magnetic Balun (UMB)
-by- Wellbrook
http://www.wellbrook.uk.com/longwire.html
+ UMB and Antenna Feed-in-Line Isolation
http://www.wellbrook.uk.com/UMB.html

* Longwire Impedance Matcher (LIM)
http://www.angelfire.com/mb/amandx/lim.html
http://www.shortwavestore.com/pdf/lo...ce-matcher.pdf

READ - Magnetic Longwire Balun - Not Really a Balun
http://www.hard-core-dx.com/nordicdx...d/magbal2.html
From : John Doty )
Date : August 24, 1995
Original Source : UseNet's Rec.Radio.Shortwave

READ - Magnetic Longwire Balun - A Con or Not ?
http://www.hard-core-dx.com/nordicdx...d/magbal1.html
-hosted by- Hard Core DX .Com

READ - The Verdict {One Man's Opinion} :
The Magnetic Longwire Balun Is Too Expensive
http://www.hard-core-dx.com/nordicdx.../magbalun.html
-by- Alan Johnson

READ - About the MLB "Magnetic Longwire Balun" - How To !
http://users.belgacom.net/hamradio/s...0Balun_MLB.htm
-by- Guy Roels [ON6MU]