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News
AIRSPY – SDR Software Download Update
Windows SDR Software Package (Change log)This package contains:SDR# (SDRSharp) x86 revision 1756 2991c02 (2020-09-23) – The best free SDR so... Read more
KM4BLG Wins the September 2020 QST Cover Plaque Award
QST Cover Plaque Award The winning article for the September 2020 QST Cover Plaque award is “Easy to Use Antenna Mast for Portable Operators” by Zach... Read more
Venerable AO-7 Satellite Approaching a Return to Full Solar Illumination
AMSAT-OSCAR 7 (AO-7), the oldest amateur radio satellite still in operation, is nearing a return to full illumination by the sun, which should take pl... Read more
RigExpert AA-650 ZOOM: UNBOXING
RigExpert AA-650 ZOOM: UNBOXING RIGEXPERT AA-650 ZOOM SPECIFICATIONS Frequency range: 0.1 to 650 MHz Frequency entry: 1 kHz resolution Measu... Read more
Antenna
Long Range Wi-Fi Dish Antenna by AB9IL
Long Range Wi-fi Dish Antenna THIS INEXPENSIVE WI-FI DISH ANTENNA OUTPERFORMS ALL OTHERS! Presented here is a project showing how to convert common sa... Read more
The Random Wire Double Zepp Antenna
Dipoles fed with an open wire line are called “Double-Zepp” or “Doublet”. The dipole (2 x Xm) may have any length, the open wi... Read more
OB9-2WARC 9 Element Duoband Yagi
OB9-2WARC (new optimized version) 9 Element Duoband Yagi 17-12m Bands 17 / 12 Gain (dbd)* 7,6 / 8,4 Gain (dbi)** 15,1 / 16,1 F/B... Read more
Measuring Propagation Attenuation Using a Quadcopter by N6GN
These tests show that the signal strength of a local station can be many tens of decibels weaker than from a DX station. For the last several years I... Read more
Equipment
Acom 600S – 600W solid state 160m to 6m Amplifier
FEATURES • 5″ (108x65mm) high resolution color display, 800×480 pixels, and 24-bits colors. • The final stage uses field effect (MOSFET) tr... Read more
CD-45II METERED ROTATOR W/FRICTION BRAKE 8.5 SF MT N TOWER
The CD-45II handles 8.5 sq. feet mounted inside a tower, or 5 sq. ft. with mast adapter. Low temperature grease good to -30 F degrees. Bell rotator de... Read more
FA-VA5 600MHz Vector Antenna Analyzer Kit
Introducing the new high precision 600 MHz Antenna Analyzer for measurements of antennas, cables and other one port devices. The new VA5 is a portable... Read more
21st Century Transceiver Design: The K4 High Performance Direct Sampling SDR
The Elecraft K4 High Performance Direct Sampling SDR Read more
Digital Modes
FT8DMC 3rd Anniversary-Activity Days 2020
To commemorate our 3rd anniversary, special event stations will be on air during the FT8DMC Activity Days from 1. to 31. July 2020. All stations will... Read more
K1JT , JOE TAYLOR HINTS AT POSSIBLE NEW MODE!
In a post to the WSJT-X email group today, Joe Taylor K1JT hinted at some ongoing experimentation of a new digital mode with sub-modes. His post was a... Read more
WWSA GACW Contest Rules.
WWSA GACW I – Dates Second weekend of June of every year. From Saturday 15.00 UTC until Sunday 15.00 UTC. 24 hours period. II – Goal To co... Read more
