Quantum Receiver Can Detect Huge Swath of the RF Spectrum

Approaches to Tackle Noise Problems Vary, Remedies Elusive

ARISS, NASA, and ESA Continue to Probe Amateur Radio Problems on ISS

Amateur Radio on the International Space Station (ARISS) International Chair Frank Bauer, KA3HDO, reports that the ARISS team has been working closely with NASA and the European Space Agency (ESA) to identify what may have caused what ARISS is calling a “radio anomaly” on January 27. The net result has been an inability to use the NA1SS ham station gear in the ISS Columbus module. For the time ...

AMSAT-DL Operators Track Mars Probes

Members of Germany’s AMSAT organization, AMSAT-DL, in cooperation with the Sternwarte Bochum Institute in Bochum, Nordrhein-Westfalen, Germany, have been using the institute’s 20-meter (65.6-foot) diameter dish antenna to listen directly to signals from probes in Mars orbit.Signals have been copied from the Chinese Tianwen-1 and the Hope Emirates Mars Mission (EMM) spacecraft now orbiting Mars ...

MARS Volunteers Recognized with Gold-Level President’s Volunteer Service Award

A dozen US Army Military Auxiliary Radio System (MARS) volunteers have been honored with gold-level recognition for the President’s Volunteer Service Award for 2020.They are Bob Mims, WA1OEZ; Ron Tomo, KE2UK; Mark Bary, N4EOC; Billy Pearson, KO4XT; Dave Bock, W8OHS; Bob Baker, K5LLF; John Monson, WB0PLW; Gary Geissinger, WA0SPM; Brian Handy, W8JBT; Bliss Wheeler, W7RUG; Jim Hamilton, K4QDF, and...

Moldova Peace Corps to Sponsor March 3 Amateur Radio on the International Space Station Contact

John Portune, W6NBC, Wins the February 2021 QST Cover Plaque Award

Spring Red Cross Emergency Communications Drill Set

The spring 2021 Red Cross Nationwide Emergency Communications Winlink Drill will be held on May 8, which is World Red Cross and Red Crescent Day 2021. Details and instructions are available. Sign up for email updates. Ahead of the May nationwide exercise, the American Red Cross (ARC) Emergency Communications training group will continue its Winlink Thursdays training sessions on March 11 and Ap...

Top Amateur Radio Websites - Issue 2108

How to build a Software Defined Radio, Amateur radio 3D models, MFSK16 APRS Tracker, PCB gEDA, remoteRotator, Ukraine Repeater Map, Audio Repeater,

Top Amateur Radio Websites - Issue 2107

FBK 2m-70cm dualband coax antenna, Fritzing, Yeggi 3D printable Models for Ham Radio, Remote Orbitron Interface, GPS clock, Weather APRS data converter

Top Amateur Radio Websites - Issue 2106

RX Loop Antenna for 80 and 160 Meters, TinyCAD, ZenitPCB, Home Brew paddles, LogiSim - Logic Circuit Simulator, KiCad EDA, DesignSpark - RS Online, S50CLX Live DX Cluster, JD1BMH online log, Volda Communication

Top Amateur Radio Websites - Issue 2105

Automatic HF Antenna Tuner with Arduino, Choking balun for 160-30 meter band, Welcome to Amateur Radio for Newcomers, Understanding Antenna Polarization, G3LIV Data Interfaces, Improve your Antennas for Low Solar Activity, Ferrite Shop, Interactive Smith chart, APRSdroid to a Baofeng Cable , HF Arduino VNA,

WSJT-X 2.4.0-RC1 Introduces new Q65 Mode

WSJT-X 2.4.0 RC1 has been officially released and it includes the new Q65 digital protocol.

ICOM IC-R20

IC-R20 by Icom. Wideband Receiver Professional radioreceiver, allow double receiver, from HF to Microwave, digital recorde, DTCS, Memories and 11 hours countinuous reception.

How to evaluate Choke performance

Antennas/Feed Lines/ChokeIf you want to build your own common mode choke, this article explains how to measure the efficiecy of your choke before using it. In the examples has been used Amidon FT240-31 toroids.

Two elements Triband Yagi Antenna

Antennas/YagiThis project was originally developed by Markus VE7CA A Portable 2-Element Triband Yagi - PDF Article