CQ Amateur Radio

CQ is the magazine for active hams, with a focus on the practical. Every article is clearly written and aimed at involving you, the reader...whether it's a story of operating from some exotic location, an article to deepen your understanding of ham radio science and technology, or a fun-to-build project that will have practical use in your ham shack. Join us on our monthly journey through the broad and varied landscape of the world's most fascinating hobby!

ANNOUNCEMENTS

CQ Amateur Radio

HAM RADIO NEWS

ZERO BIAS: A CQ Editorial • When it Doesn’t Work …

NEWS BYTES

5Z4/HB9DSP: A Holiday Style DXpedition to Kenya • It started as a radio vacation to East Africa … and ended up with a twist to remind us that, at its core, ham radio is a people hobby.

SOTA From the Top of the Americas • PT2ZDX/LU9EFO interviews ham mountaineer Diego Lizarraga, LU9MZO, who recently became the first radio amateur to make HF, VHF, and UHF contacts from the top of Cerro Aconcagua, the highest mountain in the Western Hemisphere.

Results of the 2021 CQWW RTTY DX Contest

CQ Reviews: Chameleon Antenna™ CHA MPAS 2.0 System • Just as a chameleon can change colors to blend in with its background, the Chameleon CHA MPAS 2.0 antenna system can change configurations to best meet portable operation needs no matter where you set it up. ZS1ML gave it a field test.

SPURIOUS SIGNALS

The Big Knob: An Obituary • This article has no illustrations. When you finish reading it, you’ll know why…

CQ CLASSIC: March 1947 – The Debut/Return of “Scratchi”

MATH’S NOTES • Food for Thought

THE LISTENING POST • All India Radio is Closing Two Sites

EMERGENCY COMMUNICATIONS • Radio Amateurs Assist Following Floods and Landslides in Brazil

LEARNING CURVE • Any Time is Storm Spotting Time

GORDO’S SHORT CIRCUITS • Quartzfest Proving Ground Results!

KIT BUILDING • Things That Really Suck (Solder)

THE HAM NOTEBOOK • What’s On the Workbench

DIGITAL CONNECTION • NinoTNC and Keyboarding in Packet

MF/LF OPERATING: Life Below the AM Broadcast Band • Early Season Notables For 630 And 2200 Meters

HAM RADIO EXPLORER • HF Activities for Technician Class Licensees

VHF PLUS • Key Propagation Types for 6 Meters

AWARDS • The Holyland Award Program

DX • Profile: The Southwest Ohio DX Association (SWODXA)

CONTESTING • WPX Contest Strategies

PROPAGATION • The Magic of Shortwave

2021 CQWW DX RTTY RESULTS

Looking Ahead In CQ:

HAMSHOP