SWL Newbies : The Magnetic Long-Wire Antenna Balun - A Balun It Ain't ! - But It Works :o)
RHF
Longwire Antenna Balun Question ?
http://groups.google.com/group/rec.radio.shortwave/msg/1563c227f1b034e1
-
- 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/longwire-impedance-matcher.pdf
READ - Magnetic Longwire Balun - Not Really a Balun
http://www.hard-core-dx.com/nordicdx/antenna/feed/magbal2.html
From : John Doty (j...@space.mit.edu)
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/antenna/feed/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/antenna/feed/magbalun.html
-by- Alan Johnson
READ - About the MLB "Magnetic Longwire Balun" - How To !
http://users.belgacom.net/hamradio/schemas/Magnetic%20Longwire%20Balun_MLB.htm
-by- Guy Roels [ON6MU]
.
READ - A 9:1 Balun - For Your End Fed Antenna
http://bobsamerica.com/9-1balun.html
+Plus+ RF Grounding with a Balun Feed
http://bobsamerica.com/grounding.html
-by- Robert W. Betts [N1KPR]
=PS= I have always thought that Par Electronics should
sell their Matching Transformer "MatchBox" separately
since it allows the User to Configure the Primary and
Secondary Grounds for best Noise Reduction at their
particular location. {Nice Feature - Hint Dale ;-}
http://www.parelectronics.com/swl_end.htm
-by- Dale R. Parfitt [W4OP]
well this message has gone on long enough . . .
it is time for me to bal-un out of here - iane ~ RHF {pomkia}
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Shortwave Listener (SWL) Antennas Group => http://tinyurl.com/ogvcf
GoTo => http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
RHF's Standard "Shortwave Radio Listener (SWL) Antennas Group"
Reference Message Signature-Line => http://tinyurl.com/25zbrg
http://groups.google.com/group/rec.radio.shortwave/msg/411dac3b4a1798e0
.
-=25ZBRG=-
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