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When is a Balun, not a balun, when it is an UNUN

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When is a Balun, not a balun, when it is an UNUN

... page 1 When is a Balun, not a balun, ... and a 9 to 1 can match 50 Ohm to 5 ohms. ... core) in a current balun.

http://www.philipstorr.id.au/radio/technical/Balun%20and%20UnUn.pdf

Date added: August 19, 2016 - Views: 5

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Build an All Band HF Air Core 1:1 Choke Balun THE...

\Build an All Band HF Air Core 1:1 Choke Balun THE "UGLY BALUN" A balun's purpose is to allow connecting a balanced, (e.g., a dipole or

http://www.ad4c.us/Other%20assorted%20manuals/Conferencias%20en%20la%20rueda%20de%20la%20amistad/Build%20an%20All%20Band%20HF%20Air%20Core.pdf

Date added: August 18, 2016 - Views: 6

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1-1 Hombrew Air Core Balun - Goran SM2YER

The Air-balun is made on a plastic 'No conducting' core,- Use a piece of plastic tubing about 25mm in diameter and about ... 1-1 Hombrew Air Core Balun - Goran SM2YER

http://www.zs6vd.bestwebs.co.za/1-1%20Hombrew%20Air%20Core%20Balun%20-%20Goran%20SM2YER.pdf

Date added: August 19, 2016 - Views: 1

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Radio FUNdamentals - nonstopsystems.com

It is interesting and easy to build an air-core balun, and here are some coax types with which you can experiment and draw your own conclusions as to their utility.

https://www.nonstopsystems.com/radio/pdf-ant/balun-orr.pdf

Date added: August 30, 2016 - Views: 2

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Baluns: Good, Bad & Ugly - Tri Cities Amateur Radio Club

1 Baluns: Good, Bad & Ugly Steve Sterling, WA7DUH ... Air Core Coax Choke ... l Ref 1- Some Aspects of the Balun Problem; ...

http://www.w7az.org/sites/default/files/Baluns.pdf

Date added: August 19, 2016 - Views: 5

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A 9:1 Balun For Your End Fed Antenna - Mobileers

A 9:1 Balun For Your End Fed Antenna ... Construction of the 9:1 balun/unun: I used an old plastic box and a type 75 toroid core. My windings, ...

http://www.mobileers.com/main/wp-content/uploads/2013/01/9-to-1-Balun-for-End-Fed-Antenna.pdf

Date added: August 19, 2016 - Views: 4

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Build an All Band HF Air Core 1:1 Choke Balun THE...

Build an All Band HF Air Core 1:1 Choke Balun THE "UGLY BALUN" A balun's purpose is to allow connecting a BALanced load (e.g., a dipole or driven element) ...

http://www.146970.com/PDFs/Ugly%20Choke%20Balun.pdf

Date added: August 21, 2016 - Views: 1

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The Antenna Balun - laarrl.org

The Antenna Balun What is this thing ... The magnetic material may be "air", but it is a ... Homemade 1:1 balun using a toroidal core and coaxial cable.

http://laarrl.org/pdfs/upthecoax3.pdf

Date added: August 18, 2016 - Views: 16

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The design of Ruthroff broadband voltage transformers – M ...

The design of Ruthroff broadband voltage ... I started investigating balun construction as a result of various ... use of low permeability of the core ...

http://www.g8jnj.webs.com/Balun%20construction.pdf

Date added: November 23, 2016 - Views: 1

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Ferrites and Baluns - North Shore Amateur Radio Club

FERRITES, BEADS and BALUNS by ... Range from µ = 1 (air) ... Why use a Balun ? Earth 1 A 1 A 1 A 0.9 A 0.1 A 0.1 A 1 A RF AMP 1 A 1 A 1 A 0.1 A

http://www.nsarc.ca/hf/ferrites_baluns.pdf

Date added: August 19, 2016 - Views: 6

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Choosing the Correct Balun - DX Engineering

In the case of a 1:1 ratio current balun, core flux density or "magnetizing stress" on the balun core is ... Choosing the Correct Balun ...

http://static.dxengineering.com/pdf/Choosing%20the%20Correct%20Balun.pdf

Date added: August 19, 2016 - Views: 6

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air-cored-1-1-balun-for-3-5-30-0-mhz-1-31.pdf - WordPress.com

Air Cored 1:1 Balun for 3.5 – 30.0 MHz . Graphics by G8ODE 23-11- 2110 iss 1.3 . Balun Construction Notes. 1.

https://rsars.files.wordpress.com/2013/01/air-cored-1-1-balun-for-3-5-30-0-mhz-1-31.pdf

Date added: August 19, 2016 - Views: 3

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Choosing the Correct Balun - WestValleyARC

Choosing the Correct Balun By Tom, W8JI ... Parallel feedlines with air dielectric would have ... lowest core stress, and

http://westvalleyarc.org/images/Antennas/Balun%20Selection%20By%20Dx%20Eng.pdf

Date added: August 21, 2016 - Views: 5

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Balun Information - nonstopsystems.com

http://www.bcdxc.org/balun_information.htm (1 of 10) ... and on what diameter are optimum for air core coaxial ... (neglecting possible core saturation and other non ...

https://www.nonstopsystems.com/radio/pdf-ant/balun-compilation.pdf

Date added: August 19, 2016 - Views: 4

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COAX BALUN 1 : 4, CONSTRUCTION AND USE

COAX BALUN 1 : 4, CONSTRUCTION AND USE ... BALUN 1 ÷ 4 An air wound balun made with coaxial cable can not saturate because no powdered iron or ferrite core is used.

https://pa0fri.home.xs4all.nl/Ant/Balun/balun-eng2.pdf

Date added: August 19, 2016 - Views: 6

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LOW BAND RECEIVING ANTENNAS By AB0X - Kansas City DX Club

LOW BAND RECEIVING ANTENNAS FOR CITY ... Feed with 50 Ohm coax thru 9:1 balun. ... Raising it up in the air brought antenna to

http://www.kcdxclub.com/LOW%20BAND%20RECEIVING%20ANTENNAS-1.pdf

Date added: August 20, 2016 - Views: 2

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COIL / BALUN WINDING HELP SPREADSHEETS By Ed Lawrence, WA5SWD ...

1 COIL / BALUN WINDING HELP SPREADSHEETS By Ed Lawrence, WA5SWD INTRODUCTION ecently, I have been winding and testing air core baluns. ... vacuum or air, not near ...

http://www.antennex.com/shack/Oct05/coil_help.pdf

Date added: August 19, 2016 - Views: 1

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Low Power Balun - Mini-Kits

2 W1CG Low Power Balun Kit W1CG Low Power Balun Kit 3 A Low Power 4:1 Current Balun Kit by Charles Greene, W1CG [email protected]

http://www.minikits.com.au/doc/Low%20Power%20Balun%20Manual.pdf

Date added: August 30, 2016 - Views: 2

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oparc.net

1:1 Air Core - 50 ohm type 1) Use 3/4" PVC Pipe (1.04" actual dia.), ... "Balun 6t01 OFC dipole" 1) Uses two 4-1 baluns to make a balun. Designed by VK2DQ , Ron ...

http://oparc.net/attachmates/antennas/baluns3_071116.pdf

Date added: August 21, 2016 - Views: 2

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Magnetic Longwire Balun : The Original - devill.net

The Magnetic Longwire Balun makes it possible to use a coaxial lead ... and air pollution resistant ... Do NOT use the special wire with a core mentionedfor gas ...

http://www.devill.net/Documentation/ACCESSOIRES/RF%20Systems/MLB.pdf

Date added: August 30, 2016 - Views: 1

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Construction Notes - PA0EBC

Construction Notes 1. ... The core should rotate freely ... AIR CORED 1 Balun for 3.5 PARTS REQUIRED 6mm Dia Copper 30.0 MHz Top from

http://www.pa0ebc.nl/baluns/airbalun.pdf

Date added: August 21, 2016 - Views: 1

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HF 1:1 Choke Balun - Amateur Radio NSW

Homebrew and Experimenters Group HF 1:1 (Choke) Balun Kit ... your balun when it is hung up in the air. 9. Place the wound balun core back into the box and orient it ...

http://www.arnsw.org.au/brew_text/Kit_1_to_1_HF_Balun_2007-02-28.pdf

Date added: August 19, 2016 - Views: 7

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Coaxial Transmitting Chokes - Audio Systems Group

1 Coaxial Transmitting Chokes Jim Brown K9YC ... air – Better path for ... Bifilar Choke Balun on low loss core

http://audiosystemsgroup.com/NCDXACoaxChokesPPT.pdf

Date added: September 2, 2016 - Views: 1

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Maxi-Core Baluns - DX Engineering

Maxi-Core ® Baluns Formed ... DXE-BAL450-Series 9:1 Ratio DXE-BAL600-Series 12:1 Ratio ... a 4:1 balun or any voltage-type balun is the wrong choice for use with antenna

http://static.dxengineering.com/global/images/instructions/dxe-baluns-rev7a.pdf

Date added: August 21, 2016 - Views: 8

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BALUNS – PART I - Associazione Radioamatori Italiani

... on a core having high permeability1. ... same winding in air, which has a permeability of 1, ... I recommend a 1:1 balun ...

http://www.aricuneo.it/balun-s/balun-all-part.pdf

Date added: August 21, 2016 - Views: 4

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33ft Verticals and 4:1 Ununs - Webs

33ft Verticals and 4:1 Ununs ... 1 balun and coax fed remote tuner and also the ... the type 2 iron powder core material used for the 4:1 which is not suited for ...

http://webzoom.freewebs.com/g8jnj/33ft%20Verticals%20and%20Ununs.pdf

Date added: August 19, 2016 - Views: 4

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A 4:1 Air-wound Balun - ARI Fidenza

... 2009February 1, 2009 A 4:1 Air-wound Balun ... This air-core balun is wound using the following components : • 40mm diameter grey PVC pipe with a length of 9.5cm

http://arifidenza.it/Public/data/iw0bim/2009228173047_BALUN%204-1%20SU%20PVC.pdf

Date added: August 19, 2016 - Views: 4

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Philips, Design of HF Wideband Power Transformers, Part 1

Design of HF wideband power transformers Application Note ECO6907 ... 3 INFLUENCE OF THE CORE ON PERFORMANCE 3.1 Primary ... the type without an air-gap must be ...

http://www.radio-kits.co.uk/radio-related/Linear_PA/ECO6907.pdf

Date added: August 19, 2016 - Views: 1

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HOMEBREW A BALUN - RASON

HOMEBREW A BALUN Many modern HF ... the 4 to 1 balun. ... causing heating of the core. Toroids of this type are available from Palomar Engineers, ...

http://www.rason.org/Projects/balun/balun.pdf

Date added: August 21, 2016 - Views: 3

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Book Excerpt: Sevick’s Transmission Line Transformers ...

... Sevick-s-Transmission-Line-Transformers--Chapter-9. ... 1:1 balun is well known to ... core or air core Ruthroff designs. Figure 9-1 presents what is ...

http://www.edn.com/Pdf/ViewPdf?contentItemId=4432868

Date added: October 1, 2016 - Views: 1

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END FED 6 40 Meter Multiband HF Antenna - earchi.org

1 END FED 6–40 Meter Multiband HF Antenna ... 9:1 UNUN (unbalance to ... I got is up in the air this afternoon using a 31 foot radiator.

http://earchi.org/92011endfedfiles/Endfed6_40.pdf

Date added: August 18, 2016 - Views: 6

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Feeding Dipole Antennas - Androscoggin Amateur Radio Club

feeding all kinds of antennas. C. Hutchinson ... 6:1 and 9:1 are covered. J. Sevick ... Fig 3—A coaxial-cable choke balun with an air core is effective and ...

http://www.w1npp.org/events/2010/2010-F~1/ANTENNAS/WIRE/910702~1.PDF

Date added: August 19, 2016 - Views: 1

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In Search of the Perfect Stealth Antenna - Amateur radio

In Search of the Perfect Stealth Antenna By: ... local got on the air, ... Could this be the answer to the perfect stealth antenna? The UnUn Balun

http://www.wparc.us/presentations/Antenna-UnUn-Article-2.pdf

Date added: August 19, 2016 - Views: 1

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G5RV Antennas BALUNs & Isolation Transformers Hyper Hanger TM by

B11a 1:1 Voltage Air Core Trifi $19.95 B11i 1:1 Isolation Transformer $29.95 B14va 1:4 Voltage Air ... with ISO BALUN $75 Made with RadioWavz Ultra Durable ...

http://radiowavz.us/Catalog.pdf

Date added: August 21, 2016 - Views: 1

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Matching a 60 W GaN HEMT over 100 1000 MHz Bandwidth

Matching a 60 W GaN HEMT over 100 ... configuaration using a broadband 1:1 coaxial balun at input and output to ... • A high-Q 300nH air core bias feed inductor

http://www.rfmd.com/sites/default/files/resources/migration/presentations/COM_KKrishnamurthyPASym12.pdf

Date added: September 24, 2016 - Views: 1

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The G5RV Antenna System -- An Analysis - BVARC

The G5RV Antenna System – An Analysis ... •1:1 Balun •75 ohm coax to ... •Air Wound •Badger (W6TC) Coaxial Choke (HR 2/1980)

http://www.bvarc.org/pdf/g5rv_w5rh.pdf

Date added: August 19, 2016 - Views: 2

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Transmission Lines & Antennas - Amateur radio

Transmission Lines (Chapter 7) de Fred Archibald VE1FA [email protected] Ideal transmission line: 1. ... Balun may have:-air core-Ferrite toroidal core

http://halifax-arc.org/sites/default/files/TransLines+Antennas.pdf

Date added: August 19, 2016 - Views: 1

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CobWebb Antenna for the 14, 18, 21, 24 and 28 MHz Bands

CobWebb Antenna for the 14, 18, 21, 24 ... (via an in built air core choke balun), ... Others have no balun at all, ...

http://www.9h1mrl.org/Adverts/9h5ne.pdf

Date added: August 30, 2016 - Views: 1

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A Simple 50 -ohm Single -Band Balun

A Simple 50 -ohm Single -Band Balun ... (fig. 1), with this type of balun any impedance unbalance with respect to ground does not affect ...

http://www.qsl.net/i0jx/balun.pdf

Date added: August 21, 2016 - Views: 1

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Constructing a 6 : 1 RF transformer,G8JNJ - Webs

Constructing a 6:1 RF transformer ... of the core, and that the final ... 1.9 112 131 172 150 3.6 207 119 239 200 7.1 325 0 325 260 10.1 ...

http://g8jnj.webs.com/6_1%20Balun.pdf

Date added: December 6, 2016 - Views: 1

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BALUN ---- WIND THIS WAY

Ohms which is ideal for a 1:4 balun or higher but not ... Then varnish dip the core several times in ... aerodynamic when hanging way up in the air. Title: BALUN ...

http://www.k0ks.com/ocfd/BALUN.pdf

Date added: August 21, 2016 - Views: 1

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MFJ-969 DELUXE Versa Tuner II

MFJ-969 DELUXE Versa Tuner II 1 ... 1 balun allows the use of balanced open wire, ... The MFJ Air Core Roller Inductor is designed with an exclusive Self-Resonance

http://www.mfjenterprises.com/Downloads/index.php?productid=MFJ-969&filename=MFJ-969_3B.pdf&company=mfj

Date added: August 27, 2016 - Views: 1

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MARTIN - G8JNJ - Baluns - Mobileers

Common designs use either a few turns of coax on an air core, or ... The commercial unit which I initially thought had either a 4:1 or 9:1 ratio ... 1 balun design ...

http://mobileers.com/main/wp-content/uploads/2013/01/Balun-Operation-G8JNJ.pdf

Date added: August 19, 2016 - Views: 1

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Choosing the Correct Balun - ldsradio.ca

Choosing the Correct Balun By Tom, W8JI ... air-dielectric feedline is led away from the antenna at ... lowest core stress, ...

http://ldsradio.ca/pdf/choosing-the-correct-balun.pdf

Date added: September 7, 2016 - Views: 1

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RF Transmission Lines and Antennas - PPRAA

RF Transmission Lines and Antennas ... either on a metalized rod or simply has an air core. ... to as a voltage balun or choke balun. They always have a 1:1 ratio.

http://www.ppraa.org/downloads/tech_talk/RF%20Transmission%20Lines%20and%20Antenna%20-%20Part%20Three.pdf

Date added: September 1, 2016 - Views: 1

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Mobile & Portable Antennas & Mounts - HARC Home

Mobile & Portable Antennas & Mounts ... core. Coax feed is ... A 9:1 balun matches 450 ohms, end fed dipole is several

http://www.harc.net/programs/mobile-portable-antennas-3-11-15f.pdf

Date added: August 31, 2016 - Views: 1

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160- and 80-Meter Matching Network for your 43-foot Vertical ...

160- and 80-Meter Matching Network for your 43-foot Vertical - UPDATED ... Table 1: Air-Core 160 Meter/80 Meter Impedance Matching Assembly with 1:4 Unun

http://www.ad5x.com/images/Articles/Match43footerRevA.pdf

Date added: August 18, 2016 - Views: 4

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40m through 10m Antenna - MFJ Enterprises

1 MFJ-1778M G5RV JR. 40m through 10m Antenna ... The best balun for this antenna is an air-core choke balun. ... The air wound balun required for this antenna can be ...

http://www.mfjenterprises.com/Downloads/index.php?productid=MFJ-1778M&filename=MFJ-1778M.pdf&company=mfj

Date added: August 19, 2016 - Views: 1

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High Power Multi-band Antenna Optimized for the 75 meter band

• 29 MicroHenry air core inductor. • Ai6rw balun. ... 29 MicroHenry air core inductor ... 3.925 1.9 7.200 1.9 14.250 1.5 3 ...

https://sites.google.com/a/wheeler.com/www/ai6rw/ai6rw_hp_balun_design/End_Fed_OCF_HP_Design.pdf?attredirects=1&d=1

Date added: December 6, 2016 - Views: 1