The winning article for the August 2016 QST Cover Plaque award is “Antenna Analyzers — the Basics” by Joel R. Hallas, W1ZR.
The QST Cover Plaque Award — given to the author or authors of the most popular article in each issue — is determined by a vote of ARRL members on the QST Cover Plaque Poll web page. Cast a ballot for your favorite article in the September issue today.
Antennas
Cubical Quad Antenna JavaScript Calculator
JavaScript PROGRAM by N6ACH Ron vanVarden Sample: See More on Calculator Web Site: Link Photos – Click to enlarge ... Read more
InnovAntennas XR7 & XR7C
InnovAntennas After the success of the XR6, InnovAntennas announce today the release of the new XR7 models. The XR7 is based on the XR6 model which co... Read more
Green Heron Rotator Controller RT-21azel
Rotator Controller RT-21 Azimuth/Elevation Two separate control boards for independent Azimuth and Elevation New crisp OLED displays Separate Point-an... Read more
Baluns : What They Do And How They Do lt
By Roy lV. Lewallen I’ve always been a bit bothered by balunst since I was never sure what they are supposed to dot let alone hotv they... Read more
Active Antenna Amplifier (model AAA-1C)
Active Antenna Amplifier The Kit The amplifier kit consists of the following parts: Amplifier board (mounted and tested) Control board (mounted and te... Read more
The AMSAT SA 2 m / 70 cm dual-band Yagi antenna is now available
The antenna has a 50-ohm designed driver. The Yagi has a unique element called a ‘Open Sleeve’ which is a director very close to the driven element... Read more
Ham College 24 : Antennas and more questions from the Technician pool
Antennas and more questions from the Technician exam pool. Read more
10 Element Triple Monobander 80/40/20m – OptiBeam
OptiBeam OB804020 10 Element Triple Monobander 80/40/20m Bands 80 / 40 / 20 Gain (dBd) * 3,8 / 4,8 / 8,4 ... Read more
MFJ-856 Line Noise Meter w/ 3 Element Beam
Walk or drive around with this handheld, directional noise finder with 3 element beam and meter to search out foxes, leaky insulators, loose ha... Read more
Introduction into Theory of Direction Finding
Introduction Applications of direction finding While direction finding for navigation purposes (referred to as cooperative direction finding) is becom... Read more