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Node-RED for Ham Radio
David De Coons, WO2X, and
Michael Walker, VA3MW
Node-RED is a low-code graphical programming environment that connects Internet of Things (IoT) devices and software and enables machine-to-machine communications. Node-RED can easily interface to and control a wide array of dissimilar hardware, often using simple and inexpensive hardware interfaces. It’s low cost, allows for modifications from any web browser, and development time is relatively short, thanks to an ever-growing user community that’s willing to share their expertise. Hams are using Node-RED to facilitate remote operating, multi-multi contest operations, and more. Read QST |
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Your First Amateur Radio Event
John Unrath, K6JHU
Amateur radio volunteers are often needed to help with big events, like marathons, bike races, parades, etc. There are many ways to prepare that will help ease your concerns over participating in your first event. This article presents several practical, achievable things you can do to put yourself at ease and enhance your readiness, such as visiting the location of the event beforehand to check the lay of the land, and ensuring that all your equipment batteries are charged. There’s also a handy list of common assignments and their duties, to help you understand what may be asked of you. Read On the Air |
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| Read about cutting-edge radio technology and breakthroughs from ham radio’s greatest minds. Read QEX |
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| Get radiosport techniques and tips from today’s top contesters. Read NCJ |
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Eclectic Tech – Episode 40 – August 12
We describe how NASA is using rockets to study Very Low Frequencies, and discuss a new Universal Serial Bus standard that allows higher voltages and currents. We’ll top it off with a chat with Dr. Dan Fay, KG5VBY, about QMesh, an innovative way to send digital voice communications using inexpensive LoRa transceivers. Listen now
On the Air – Episode 20 – August 12
In keeping with the EmComm theme of the July/August 2021 issue of On the Air, this podcast features Oliver Dully, K6OLI, talking about how amateurs use the Winlink network for various public service applications. He also discusses the equipment and software necessary to access Winlink. Listen now |
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Webinar – Introduction to DMR and Digital Voice
September 9, 2021 @ 3:30 pm EDT (1930 UTC)
Join us for an introductory overview of Digital Voice (DV) technologies for Ham Radio presented by Tim Deagan, KJ8U. Register now |
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Save the Date: October 8 – 14
ARRL’s annual Online Auction features unique vintage items, new gear, QST Product Review items, and more! Included in the auction are two vintage radios, Johnson Viking Valiant II Transmitter (pictured) and the R390A Receiver, both in good working condition. Preview begins October 5th. New items are being added every day! |
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Just Released: More Arduino for Ham Radio
Written by popular author and experimenter Glen Popiel, KW5GP, this book introduces many of the new Arduino boards and add-on modules, followed by an overview of the software, tools, and techniques needed to bring projects to life. Practical projects showcase a wide variety of applications and include how the software “sketches” work. Buy Now |
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Back in Stock: End-Fed Half-Wave Antenna Kit
Perfect for HF and portable operating, this four-band end-fed half-wave (EFHW) antenna kit works on 10, 15, 20, and 40 meters. Building the kit is easy. You’ll drill, fasten, and solder. The advantage of an EFHW is the ease of construction, its versatility in a variety of installation configurations (sloping, horizontal, L, etc.), and no tuner is needed. We chose a 250-watt rated antenna so you can comfortably transmit the full output power from many off-the-shelf HF transceivers (typically around 100 watts). Buy Now |
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| Announcing New Member Service Hours!
To better serve our members, we are pleased to announce that beginning Monday, August 30, 2021, ARRL Member Services will extend our phone support service hours to 8:00 AM – 7:00 PM EDT, Monday through Thursday.
The Member Services team will be available at 1-860-594-0200 to process address changes, online account support, new memberships, renewals, and publication and product orders. Inquiries for Logbook of the World (LoTW) will continue to be serviced via email at LoTW-help, and the ARRL VEC department can be reached directly from 8:00 AM-5:00 PM EDT at 1-800-927-7583.
We appreciate our members and hope that these new hours will make it easier for you to get answers to your membership and product questions. |
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Register now and visit us virtually at the ARRL booth during the QSO Today Virtual Ham Expo, August 14-15. Meet ARRL staff representatives in the video lounges on Saturday from 1500 – 2300 UTC, and Sunday from 1500 – 1800 UTC. Get a bonus gift when you renew your ARRL membership, and a free Hints and Kinks book with every order of $20 or more. Don’t miss ARRL Laboratory Manager Ed Hare, W1RFI, and his presentation "How to Comply with FCC RF Exposure Rules" at 1500 UTC (8 am PDT / 11 am EDT) on Sunday, August 15.
Huntsville Hamfest, the ARRL Southeastern Division Convention
Huntsville, Alabama | Aug 21-22, 2021
Visit us at the ARRL booth in Hunstville, Alabama, to celebrate our return to in-person events. Join, renew, or extend your membership and receive a Limited-Edition Canvas 2021 Member Tote Bag!
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Subscribe today. |
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ARRL Letter
Everything you need to know about ARRL and ham radio news in one easy-to-scan newsletter, sent weekly.
ARRL Contest Update
Offering a biweekly roundup of information on upcoming contests for both the active and casual contester.
ARES Letter
Interested in emergency communications and public service? The monthly ARES Letter will keep you up to date.
On the Air Monthly Email
The monthly email was developed to help new hams get on the air and involved with the hobby. Featuring content from the pages of On the Air magazine, along with newly produced articles and videos. |
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About this Email
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