ARRL Audio News June 2, 2023
ARRL Audio News June 2, 2023
ARRL Elected to Serve on SAFECOM
ARRL The National Association for Amateur Radio® has been elected to serve on SAFECOM®. SAFECOM is a group of national thought leaders and officials within the emergency communications and response space that works to set standards used at every level. The program is managed by the Cybersecurity and Infrastructure Security Agency (CISA), an agency of the US Department of Homeland Security. SAFE...
Museum Ships On-the-Air Weekend
If you like ships and are an amateur radio operator, 100 ships will be on the air from June 3 - 4 for the annual Museum Ships Weekend event.
Organizers stress that this is not a contest, but a fun event that begins at 0000Z on June 3, 2023, and runs through 2359Z on June 4, 2023.
While operation on any amateur frequency is allowed, most ships will be operating in the general portion of the bands....
Some secrets of Common Mode Chokes revealed
Antennas/Feed Lines/Choke
This is a small collection of K9YC info and my experiences. Problems by feed lines of 1/2 lambda length. CMCs in transmitting and receiving systems. Antenna unbalance, Maximal allowed power, Choke winding tips.
“He Touched So Many Lives” Chip Margelli, K7JA (SK)
The airwaves are markedly dimmer this week, social media is filled with heartfelt tributes, and industry leaders are mourning. Longtime fixture of amateur radio Charles “Chip” Margelli, K7JA, passed away after a brief illness. Margelli was an ARRL Life Member. “The light and love of my life is gone,” Margelli’s widow Janet, KL7MF, posted on Facebook. “He enjoyed 60 wonderful years as a ham and 4...
Estimated International Sunspot Number
Propagation/Sunspots
The estimated international sunspot number (EISN) is a daily value obtained by a simple average over available sunspot counts from prompt stations in the SILSO network.
Oregon Tualatin Valley Amateur Radio Club
Affiliated with the American Radio Relay League in the Oregon Section of the Northwestern Division
Short receiving loop antenna
Antennas/Receiving
This page is a project for a small loop antenna for reception of short wave broadcasting.
It is in Portuguese and contains pictures and schematics to build your own antenna
FT-817 internal battery power Fix
Radio Equipment/HF Transceivers/Yaesu FT-817
If your FT-817 has stopped powering up from the internal battery but works from external power, then maybe the internal battery fuse has blown.
There is a small PCB mounted fuse to protect the battery and radio. This fuse can blow, if it does your radio will not work from battery power.
This page will describe how to test the fuse and describe how to make a repair.
Radioquebec.net
Radioquebec.net Ham Radio Super Club. 146.790 - Node: 4796 The heart of Montreal
Harford County Amateur Radio Emergency Communications
Trained amateur radio communicators under ARES, RACES and Skywarn serving Harford County, Maryland communities
Shortened 30m Dipole
Antennas/30M
This article describes the construction of a 9,50 m long dipole for the 30 m band (10.1 MHz to 10.15 MHz). It was designed to be mounted ca. 6 m above ground inside an attic. The calculations were performed by OE1MEW
Mains RF Filter
Technical Reference/Radio Frequency Interference/Noise Reduction
If RF noise threatens to take your hobby away, this could be probably a good solution to reduce or even eliminate RF Noise.
Portable Operating Tips for Ham Radios
Operating Modes/Portable Operations
This article is from the book Ham Radio For Dummies and features some tips for portable amateur radio operations, on Field Day or generic outdoor operation, like selecting the proper antenna and portable power.
ARRL Audio News May 26, 2023
ARRL Audio News May 26, 2023
ARRL Headquarters Will Be Closed on Memorial Day, Monday, May 29
ARRL The National Association for Amateur Radio® honors and remembers the ultimate sacrifice made by those who served in the U.S. armed forces. ARRL Headquarters will be closed Monday, May 29, 2023, in observance of Memorial Day. Many of the member services and information offered by ARRL are accessible on our website 24/7.
There will be no W1AW code practice or bulletin transmissions on Memori...
Dayton Hamvention® 2023 Wrap Up
ARRL greeted attendees in its large exhibit area in the "Tesla" building. Traffic to the exhibit was brisk. Members and prospective members enjoyed meeting with dozens of ARRL program representatives and volunteers. The event hosted the ARRL Great Lakes Division Convention.
While the final count is still a few days away from being completed, Hamvention spokesperson Michael Kalter, W8CI, said thi...
Section Manager Update: Austin Elected, Bigley Re-elected, Gendron Appointed
The results of two balloted Section Manager elections held this spring were determined when the ballots were counted at ARRL Headquarters on Tuesday, May 23, 2023. John Bigley, N7UR, incumbent Section Manager of the ARRL Nevada Section, was re-elected when he received 277 votes, and Jim Shepherd, W6US, of Sparks, received 177 votes. Bigley, of Las Vegas, has been serving as Section Manager since...
A High Performance RF Choke for the HF bands
Antennas/Feed Lines/Choke
Home brewing a high performance, high power common mode choke for HF bands
ARRL and FEMA Sign Agreement: Ham Radio is as Relevant as Ever
The agreement emphasizes the importance of skilled Amateur Radio Operators in times of crisis and the role of ARES leadership within the emergency communications space. ARES (see the ARES fact sheet at www.arrl.org/ares) is a network of trained Amateur Radio Service licensees organized across the country to provide communications and other support to served agencies, such as local governments, ...
Gomez Nominated for Vacant FCC Seat, Two Commissioners Renominated
President Joe Biden announced three nominees for the Federal Communications Commission (FCC) on May 22, 2023. The President will nominate Anna M. Gomez for a vacant FCC seat. Two sitting Commissioners, Geoffrey Starks and Brendan Carr, will be nominated for new terms at the same time. Gomez is an attorney with decades of experience in domestic and international communications law and policy. Go...
Christchurch Amateur Radio Club
Christchurch Amateur Radio Club Branch 05 of NZART ZL3AC
Ham Radio Science
A blod dedicated to SDR and RTL-SDR featuring sdr new and product reviews
Thunderstorm connected with Sporadic E propagation
Propagation/Sporadic E
Recent researches seem to support the hypothesis that Sporadic E propagation could be connected to presence of thunderstorms.
Raspberry PI remote Ham Radio Server
Technical Reference/Raspberry Pi
Remote Ham Radio via WebRTC Audio Raspberry Pi 3. Stream Transceiver Audio to and from the remote station though a Browser using WebRTC.
Dayton Hamvention Roundup Saturday May 20, 2023
Dayton Hamvention Roundup Sunday, May 21, 2023
by Mark H. Derks, KC1RVQ, ARRL Acquisitions Editor
Sunday at Dayton Hamvention® proved to be a whirlwind affair, even if the crowds had thinned considerably from Friday and Saturday’s surge. In the ARRL Expo space, a few more books sold out, along with some of the popular sizes for 2023 ARRL Field Day t-shirts. Among the staff and volunteers present, there was a sense that the event had proved a...
QRZ.sh
Software/Databases
This script queries the QRZ.com callsign database and returns the result to the command line. A XML subscription plan with QRZ.com is required for full functionality. QRZ.com callsign data query script written in Bash
DIY Yagi Antenna
Antennas/Yagi
This article describes the phases for the construction of a Yagi antenna. The calculations of the parameters are made using 4NEC2 software. This type of antenna is used for transmissions and receptions of electromagnetic waves. The project shown here refers to the frequency of 433.92 MHz.
Dayton Hamvention Roundup Friday, May 19, 2023
by Mark H. Derks, KC1RVQ, ARRL Acquisitions Editor The Calm Before The first official day of 2023 Dayton Hamvention® began with half an hour of calm on the show floor. All the transceivers and whips, the coils of coax, and bins of SMA connecters lay abed beneath their evening coverings -- white plastic tablecloth in the ARRL exhibit space, black canvas covers for neighboring Icom, and others beyo...
Mid Sussex Amateur Radio Society
Ham Radio/Clubs/Europe/UK/Southern England
Mid Sussex ARS is an RSGB-affiliated club and meets at its headquarters in Burgess Hill on the 2nd and 4th Friday of each month. They organize various activities ranging from talks by members or guest speakers, evenings on the air using their shack's latest SDR equipment, training evenings and used equipment sales. As well as scheduled club nights, they run many outdoor activities throughout the year, including direction-finding contests, town days, social evenings and Special Event Stations. They even have their own free online training academy!
Battery University
Technical Reference/Batteries
A free educational website offering hands-on battery information. The tutorials evaluate the advantages and limitations of diverse battery chemistries, advise on best choices, and suggest ways to extend life.
Icom Announce ID-50 Compact Digital Dual Bander
The ID-50 is a compact VHF/UHF dual bander with both D-STAR and FM dual modes. Connecting to the D-STAR network, you can call a friend in another city, or other regions around the world with the ID-50. Smart functions such as Band Scope and Picture Sharing function enhance your QSO experience.
Top Amateur Radio Websites - Issue 2320
Countries with CEPT Licence, BG2FX Amateur Radios, JBOT QRP linear amplifier, RF Inductor Calculator, DCF77 , JJY, 9X5RU Rwanda,
T-minus 1 Day Until Dayton Hamvention – May 18, 2023
by Mark H. Derks, KC1RVQ, ARRL Acquisitions Editor The day before Dayton Hamvention® 2023, and already antennas porcupine cars at the University of Dayton Marriott. Cardstock “No Parking” signs issued by the Xenia, Ohio, police department top blonde stakes on the approach to the vendor parking at the Greene County Fairgrounds, a signal about the number of ham radio operators about to descend. The...
|
