Tecnologia e Giochi
CQ Amateur Radio

CQ Amateur Radio April 2019

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!

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1 minuti
cq amateur radio

EDITORIAL STAFF Richard S. Moseson, W2VU, Editor Jason Feldman, KD2IWM, Managing Editor Susan Moseson, Editorial Consultant CONTRIBUTING EDITORS Kent Britain, WA5VJB, Antennas Gerry L. Dexter, The Listening Post Joe Eisenberg, KØNEB, Kit-Building Tony Emanuele, K8ZR, VHF Tomas Hood, NW7US, Propagation John Langridge, KB5NJD, MF/LF Operating Anthony Luscre, K8ZT, Microcontrollers Irwin Math, WA2NDM, Math’s Notes Joe Moell, KØOV, Homing In Eric Nichols, KL7AJ, Analog Adventures Ron Ochu, KOØZ, Learning Curve Jeff Reinhardt, AA6JR, Mobile/Radio Magic Scott Rought, KA8SMA, QRP Don Rotolo, N2IRZ, Digital Rob de Santos, K8RKD, Communications Horizons Walt Palmer, W4ALT, Emergency Communications Bob Schenck, N2OO, DX David Siddall, K3ZJ, Contesting Tom Smerk, AA6TS, International Jason Togyer, KB3CNM, Spurious Signals Gordon West, WB6NOA, Short Circuits Wayne Yoshida, KH6WZ, The Ham Notebook AWARD MANAGEMENT John Bergman, KC5LK, WAZ Award Steve Bolia, N8BJQ, WPX Award Keith Gilbertson, KØKG, CQ DX Award CONTEST MANAGEMENT Andy Blank, N2NT, CQ 160 Meter Contest Steve Bolia, N8BJQ, CQ VHF Contest John Dorr, K1AR, CQWW DX Contest Ed Muns, WØYK, CQ RTTY…

19 minuti

APRIL BELTON, TEXAS — The Temple Amateur Radio Club will hold HamEXPO from 7 a.m. to noon, Saturday, April 6 at the Bell County Expo Center, 301 W. Loop 121. Website: <>. VE exams. BRANSON, MISSOURI — The Four State QRP Group will hold OzarkCon beginning 4 p.m., Friday, April 5 and from 7:30 a.m. to 5 p.m., Saturday, April 6 at the Stone Castle Hotel & Conference Center, 3050 Green Mountain Drive. Website: <>. Friday kit building workshop, special event station: KØN. BRAINERD, MINNESOTA — The Brainerd Amateur Radio Club will hold the Brainerd Area Hamfest from 9 a.m. to 1 p.m., Saturday, April 6 at the Brainerd National Guard Armory, 1115 Wright Street. Contact: BAARC, 33247 East Shamineau Drive, Motley, MN 56466. Website: <>. Talk-in 147.225+. VE exams, ARRL card checking. COLUMBUS,…

5 minuti
ham radio news

Nominations Open for Young Ham of the Year Award Nominations are open for the 2019 Bill Pasternak, WA6ITF, Memorial Newsline Young Ham of the Year Award (YHOTY). CQ is a proud corporate sponsor of this award. Nominees must be age 18 or younger and live in the United States or Canada. They must be making a significant contribution to amateur radio and/or using amateur radio to make a significant contribution to their communities (e.g., simply being licensed at age 2 won’t cut it). This year, for the first time, only emailed nominations will be accepted. The nomination deadline is May 31, 2019. For complete information and nominating forms, visit <>. WWV Funding Restored, Centennial Preparations Continue Congress has restored full funding for WWV, WWVB, and WWVH, despite a budget proposal from the National…

7 minuti
zero bias: a cq editorial

The key letter in the abbreviations and acronyms in the headline is “Y.” In all three cases, it refers to young hams — Youngsters on the Air, Youth Contesting Program, Young Amateurs Radio Club. You’ll notice that there’s no “Y” in ARRL, figuratively as well as literally, and that’s a problem. It certainly isn’t a new problem. My initial involvement in organized amateur radio (beyond my local club) was a program I tried to get the League behind for outreach to young people back in the early 1980s. The response at the time was that it would be best to pursue the program through local clubs and the net result was an article in QST and an appointment to the then-newly-created position of Affiliated Club Coordinator for the ARRL section in…

6 minuti
what’s up with solar cycle 25?

The nature of the next solar cycle, number 25 since they first were observed and reported by the Swiss Observatory in Zurich, and now, by the Royal Observatory of Belgium, Brussels, is of utmost importance to all users of the high-frequency (HF; 3-30 MHz) spectrum. It’s the radiation from the active Sun, after all, that controls the strength of the Earth’s ionosphere and hence, our ability to use this naturally occurring phenomenon for long-distance communications. As seen in Figure 1, we currently are in the final years of Cycle 24, which is the weakest in our lifetimes (note that this chart begins in 1820.) So, this is a good time to ask: Where are we heading? Before I answer that question, you should understand that the 12-month running smoothed sunspot numbers (SSN)…

13 minuti
results of the 2018 cqww dx ssb contest

It seems almost impossible to believe, but the 71st CQ World Wide SSB contest is in the books. PY2AC won the SOAB (single-operator, all-band) category in 1948 with a “blistering” score of 124,068 points. In sharp contrast, the current SOAB record is now held by EA8BH (N5TJ op.), who stunned the contest community in 1999 with a score of 25M+ points and over 10,000 QSOs! Of course, for us mortals, making 10,000 contacts in a single weekend not only appears to be unachievable, but frankly is unachievable for 99.99% of those who participate. However, the CQWW SSB contest explodes on the scene in late October and something magical happens. The relatively inactive bands that we are currently experiencing in this torturous solar minimum miraculously light up. Twenty meters becomes filled from…