Antenna
5 element Long Boom 144MHz LFA-Q Super-Gainer Quad Style Yagi
Description A 5 element Long Boom (2.1m) LFA-Q (Super-rigid Quad-style) Super-Light Quad Style Yagi for 144 – 145MHz The LFA-Q Packs a bigger... Read more
LOW NOISE EXPLAINED ( LFA Antennas ) by G0KSC
A long time has passed since we have to accept the negative aspects of matching Yagi antennas. With modern software, knowledge and optimisation techni... Read more
Omni-Directional – Circularly (Mixed) Polarized Antenna for 144 MHz / VHF / 2 Meters.
Introduction and Background This is an experimental project that may lead to further development in the future, but even as presented below, it does w... Read more
DXplorer system providing facilities for on-air antenna system testing and comparison
DXplorer™ is a unique web-based system providing facilities for on-air antenna system testing and comparison as well as real-time HF propagation analy... Read more
Equipment
Rotator Genius – 4O3A
Rotator Genius is a smart rotator controller that uses a magnetic sensor for reading azimuth. It can be controlled by a Windows or Android app. Motor... Read more
BURST 2000A – HF power amplifier
Technical characteristics of HF power amplifier BURST-2000A 2200 W PEP output power (SSB and CW) All HF bands, including WARC bands and 6 meters Rated... Read more
“New Elecraft K4s in production
K4 TRANSCEIVER We’re pleased to announce our new top of the line transceiver, the Elecraft K4. It combines the latest in direct-sampling technology wi... Read more
Review
Survey of Less-Expensive Vertical Antennas
Oggie Mike, KB7HFS, asks for a recommendation for a new vertical antenna. He already has a radial field and a mount; his prior antenna was destroyed i... Read more
Learning Morse Code, Straight Key or Paddles?
“The eternal question and a sure way to start trouble at your next Ham radio club! Is the straight key a better learning tool or will the modern... Read more
Icom IC-705 with the mAT-705 Portable Tuner
“Today I operate the Icom IC-705 at my hunting lease as a portable radio with an End Fed Random Wire antenna from Nelson Antennas, and the mAT-7... Read more
How Your Radio’s Final Amp Class Affects Efficiency
An Oggie asks why his radio draws so much more power than the 100 watts it puts out. The answer lies in using linear final power amps in the Class A,... Read more
VHF
The First Thing To Upgrade On Your Handheld Ham Radio
It’s true that the best thing to upgrade on your ham radio handheld is its antenna. However, there is something you should do before making that anten... Read more
AMSAT/Vanderbilt RadFXSat-2/Fox 1E Set to Launch
Virgin Orbit’s LauncherOne is a go for launch on Wednesday, January 13, at 1500 UTC, carrying the AMSAT/Vanderbilt RadFXSat-2/Fox-1E CubeSat into spac... Read more
144 MHz signal from the Faroe Islands heard 3000kms away in Bulgaria during Geminid Meteor Shower – Dec 2020
Every year, the Geminid meteor shower peaks around the 14th of December and many VHF radio amateurs make contacts by bouncing signals off the meteor t... Read more
QYT KT-780 Plus 100 Watts 2 meter Mobile Radio Review and Demo
The QYT KT-780 Plus is a 100 watt mobile radio on the 2 meter Amateur Radio Band, and works on FM mode. Today we will walk through the menu of the rad... Read more
