alan 105

Balun Theory  ^pop - The word balun means balanced-unbalanced: it's used to adapt a balanced device to an unbalanced one

HF Home made Balun  ^pop - A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.

Balun single core 4:1 analysis - Real 4:1 Transmission Line Balun with Balanced Load

EH antenna power lost considerations - Out of Balance Current or Longitudinal Mode Current in the Coaxial Cable causes radiation from the coax. But how large a proportion of the total power is radiated or lost from this Current?

T-Match Construction - The T-Match with its balanced feed point is one method of feeding a Balanced Dipole.

N4EKV.COM - Antenna Tuners - Homebrew balanced-L antenna tuner. Covers 160-10m. Designed specifically for balanced feedlines.

Link Coupled Tuner - Legal Limit Link Coupled Balanced Tuner,for the amateur ham radio HF bands. This Tuner uses plug-in Coils sets for 40, 80, & 160 meters

A Tincan feed for 2.45Ghz - Construction details for a simple but effective antenna for 2.45Ghz wireless lan use.

Building Helical Antennas - Seattle Wireless - Photos and comments on building an helical antenna for wifi

DirectionalWaveguide - Seattle Wireless - Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide. A waveguide is simply a tube, either rectangular or cylindrical in cross-section, that will carry a microwave radio signal with very low signal loss

SD Chile - Sugar Delta Chile official web site

45SD105 Vlada - Personal web site of a freebander, info on 11m digital modes, pictures of antenna projects

OH0 DX-pedition Priority listing - Recurrent expeditions to Aaland Island by SM5HJZ

ZL1AQ Blog - ZL1AQ ham radio blog from New Zealand

BAZ Spezialantennen - German antenna manufacturer for VHF UHF antennas, Quad-antennas, yagi-Antenna, LPDA-Antenna, W-Lan Antennas.

CWS ByteMark - CWS ByteMark's Baluns (Balanced to Unbalanced) and Ununs (unbalanced to unbalanced) transformers are developed jointly with Dr. Jerry Sevick, W2FMI, who is known worldwide for his work on transmission line transformers

Funkshop.com - German Ham radio dealer for hf radios by Icom Yaesu Kenwood Alinco and Alan

CTE - Cte international, Midland radios, Alan Radio and CTE Broadcast

Radio New Zealand International - Radio New Zealand International is a Shortwave Broadcaster. Our broadcasts are beamed to the island nations of the Pacific but can also be heard in other parts of the world.

Hungarian Radio - Radio Budapest is the external service of Hungarian Radio Company Limited, the public service broadcasting organisation.

Voice of Biafra International - Biafra nation

Kiwi Radio - New Zealand

NZ Radio dx - New Zealand Radio DX League

XLZIZL by AC6LA - XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.

Assessing unknown Ferrite Toroids - Ok so you have had a good day at the Rally and you have come back with a carrier bag full of ferrite toroids that "just might be useful for something". How do you find out what they are? Very few seem to be stamped with any indication of their properties, and some are 'painted' garish colours which presumably means something.