Search results

All about baluns with photos, projects and instructions, by IZ7ATH

MFJ manufacturer of ham radio antenna products, antenna tuners, antenna analyzers, morse code & CW, SWR wattmeters, antenna accessories , power supplies, audio filters, TVI filters, baluns, coax switches and more

The word balun means balanced-unbalanced: it's used to adapt a balanced device to an unbalanced one, read more basic thory on Ununs and Baluns

How to easily home-brew baluns even in strange formats 1/1 - 2/1 - 4/1 - 6/1 - 9/1 - 12/1 et 16/1 for bands from 1.8 to 30 (50) MHz in french

Do these things do exactly what they say they do, or are they total hogwash? - Patrick lifts the lid on the MLB

Build a portable VHF yagi antenna for 2 meters. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4 CPVC pipe with one tee.

Antennas, Keyer, amplifier, transverter, baluns

Which balun to use? The hybrid balun promises advantages over both voltage and current baluns by ZS1AN

Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.

Your source for coax, connectors, wire, baluns, and other certified quality wireman products.

DIY Basic Electronic Theory, Basic Antenna Theory with Antennas built from common materials. What does SWR really mean. Baluns from transmission line.

Dispels myth about choke balun winding method

Receivers, Antenna Tuners and accessories, antenna analyzers, dummy loads, wattmeters, shortwave radio receivers, baluns, filters

Australian dealer, HF linear amplifiers, power supplies, baluns, HF UHF yagis and verticals including multiband HF verticals.

RFI Kit, ferrite cores, baluns, loop antennas, antenna tuners and various accessories

French manufacturer (F5MSU) of antennas and accessories since 1999 : Yagi, Delta-loop, dipoles, T2FD, verticales, EFHW, baluns, ununs, etc.

Why a vertical antenna or longwire antenna might require a balun

K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns

Magnetic longwire baluns 1:9 combined with ground, a 1:2 and 1:1 balun connections by ON6MU

Low-cost 600:50 Ohm Baluns by Andrew Corney ZL2BBJ

Occasionally errors are made regarding core selection. This especially includes baluns, where on occasion some very strange ideas surface.

a neat 1:1 50 ohm balun for use on HF horizontal wire dipoles.

This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.

W1ZY's 40 Meter MOXON is the product of 9 months of experimentation. The final array is reversible and constructed from No. 12 insulated wire fed through two RF current baluns

One of the most popular Ham-lore rumors is a balun's performance can be tested or evaluated by grabbing the coax and watching for an SWR change. This is probably one of the worse test-rumors circulating

Notes on homebrewing antennas by Chris G4CYA, from gamma matching, to phasing antennas, splitters and combiners, baluns and measuring techniques.

Antenna manufacturer from Poland, produce dipole wire antennas, W3DZZ FD4 Windom and long wires, baluns, dealer for toroids and connectors managed by Leszek Mlynarczyk SP1BKS

Antenna tuners, components, filters and baluns manufacturer based in germany

Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring.

HF baluns by amidon.de with online shop

Circuit diagrams to homebrew different baluns by vk2awx

There is considerable confusion about the various types of baluns, this article try to make it clear.

Cal-av labs, inc. (formerly california avionics laboratories, inc.) manufactures electronic instruments and systems for research and industry. we specialize in radio communications and research/electronic test products. Amateur radio yagi antennas, rotary dipoles, baluns, morse keys.

Baluns for amateur and commercial radio.

Ferrite Toroids. Iron Powder Toroids. Ferrite Beads. Split Cores. Cable clamp-ons. Balun Cores. W2FMI Baluns and Ununs. Inductive components for EMI Suppression and RFI Suppresion, power supplies, HAM radio.

An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.

Balun Designs wind high quality baluns and ununs for Amateur Radio and commercial applications based on the researched and tested designs of Dr. Jerry Sevick, W2FMI.

The Coaxman by Clear Signal Products, Inc. features a complete Wireman line of coaxial cable and antenna wire. Antenna wire, baluns, coax connectors, insulators, ladder line, magnet wire, rope.

Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

About different baluns types. Samples and schematics for several ratios baluns in french

Baluns / Ununs design and acceptable power

EA4EOZ home made baluns

Collection of different techniques to homebrew PVC yagi antennas, including elements assembling, baluns and chokes, radiator box tips and tricks by dk7zb

Some antenna manufacturers place baluns at the incorrect location in LPDA arrays. If we consider what the balun does we can see how the mistake occurs.

The document provides a comprehensive overview of baluns, which are devices used to connect balanced loads, like dipole antennas, to unbalanced inputs, such as coaxial cables. It covers various types of baluns, including voltage and current baluns, and their design, construction, and testing. The text discusses the importance of baluns in preventing RF currents on coax shields and their applications in Ham radio setups. It also includes practical advice on selecting and using baluns based on antenna impedance and power ratings, along with detailed performance evaluations and construction tips for different balun configurations.

A magnetic longwire unun with a T130-2 Iron Powder core by M0UKD

Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.

A complete guide to Baluns and transformers by WK5AJL

Understanding and solving RF interference problems using ferrite

Wide bandwidth Trapped Verticals and rotary dipoles, baluns, 40m/80m wire dipoles and accessories from Australia.