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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: 2

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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: 3

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Baluns: Good, Bad & Ugly - Tri Cities Amateur...

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: 2

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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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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: 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: 5

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

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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Ferrites and Baluns - North Shore Amateur Radio...

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: 2

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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 design of Ruthroff broadband voltage...

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

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

Date added: August 19, 2016 - Views: 2

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LOW BAND RECEIVING ANTENNAS By AB0X - Kansas City...

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: 1

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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: 3

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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: 1

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A Single-Core 4:1 Current Balun of Improved...

... 1 Current Balun of Improved Performance by ... 1 Voltage Balun another [8, 9], ... 1 Current Balun Using a Single Core

http://www.home.earthlink.net/~christrask/Trask4to1Balun.pdf

Date added: August 21, 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: 4

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Book Excerpt: Sevick’s Transmission Line...

... 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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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: 2

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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: 3

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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: 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: 4

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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: 1

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In Search of the Perfect Stealth Antenna - Amateur...

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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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: 1

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BALUNS – PART I - Associazione Radioamatori...

... 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: 2

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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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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: 3

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COIL / BALUN WINDING HELP SPREADSHEETS By Ed...

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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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: 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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END FED 6 40 Meter Multiband HF Antenna -...

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: 3

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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: 1

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Magnetic Longwire Balun : The Original -...

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

Date added: August 21, 2016 - Views: 1

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G5RV Antennas BALUNs & Isolation Transformers

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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Feeding Dipole Antennas - Androscoggin Amateur...

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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Philips, Design of HF Wideband Power Transformers,...

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

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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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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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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Designing Wide-band Transformers for HF and VHF...

Designing Wide-band Transformers for HF and ... (balun), are used in various ... core material.2 This is a serious con-

http://kambing.ui.ac.id/onnopurbo/orari-diklat/teknik/balun/qx3Trask.pdf

Date added: August 21, 2016 - Views: 1

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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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RF Transformers - Mini Circuits

RF Transformers RF transformers are ... Transformer core saturation is influenced by (1) ... balun is a transformer that has a balanced input, ...

http://www.minicircuits.com/pages/pdfs/tran14-2.pdf

Date added: August 18, 2016 - Views: 4

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Fixed Frequency Cable and Wide-Band Magnetic...

Fixed Frequency Cable and Wide-Band Magnetic Baluns ... Wide-band baluns are usually of a ferrite-core transformer design and ... 1 balun is the Ruthroff balun ...

p://www.engr.sjsu.edu

Date added: August 18, 2016 - Views: 36

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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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G5RV-pub 1

G5RV-pub_1.cdr Author: Charles Campbell Created Date: 1/26/2009 9:29:01 AM ...

http://www.k7rdg.org/techprojects/G5RV-pub.pdf

Date added: September 10, 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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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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Baluns, Balun Transformers magic-Ts and 180° H

core & wire, microstrip, ... balun transformers, Magic-Ts, and 180° ... tures such as buildings, dams, air-planes, UAVs and spacecraft. The

http://www.highfrequencyelectronics.com/images/HFEpdfs/2014/HFE0914_OE.pdf

Date added: October 1, 2016 - Views: 1