The GAWANT Antenna
Antennas/Portable
The GAWANT Antenna, or Shinagawa Antenna is an half-wave vertical end-fed in a FT817-friendly package
ARRL Audio News January 13, 2023
ARRL Audio News for January 13, 2023
Orlando HamCation Presents Its 2023 Award Winners
Just a month ahead of its big event in Florida, Orlando HamCation® has announced the 2023 HamCation Award winners.
Ken Lyons, KN4MDJ (left), is a 2023 Carole Perry Educator of the Year Award winner. Photo courtesy of HamCation.
Ken Lyons, KN4MDJ, and Jim Storms, AB8YK, are the 2023 recipients of the Carole Perry Educator of the Year Award. The award is given to individuals who have made outstandi...
HAARP Thanks Amateur Radio Operators for Help with Latest Experiment
On Tuesday, December 27, 2022, the High-frequency Active Auroral Research Program (HAARP) conducted its latest ionospheric experiment of bouncing radio signals off an asteroid passing near Earth's orbit (see the ARRL News story from December 23, 2022).
A frosty landscape surrounds antennas at the High-frequency Active Auroral Research Program site in Gakona, Alaska, on December 20, 2022. [JR Anc...
MFJ-434 Voice Keyer
Radio Equipment/Voice Keyers
Let this microprocessor controlled MFJ Contest Voice KeyerTM call CQ, send your call and do contest exchanges for you in your own natural voice
Arnaldo de Jesús Coro Antich, CO2KK, Silent Key
Arnaldo de Jesús Coro Antich, CO2KK, passed away January 8, 2023. Coro was born on July 2, 1942. He was a founding member, since 1966, of the Federation of Radio Amateurs of Cuba [Federacion de Radioaficionados de Cuba].
"At the age of 12, [Coro] joined what was then the Radio Club de Cuba, the association that brought together radio amateurs in the capital in the late 1950s," included a report ...
WA3COM Washington Amateur Communications
A Foxhunting Jamboree
Operating Modes/Radio Direction Finding
Fox Hunting for Scouts. Jamboree can be an opportunity to promote ARDF among Scouts all around the world.
All About Scouting - Radio Scout
Ham Radio/Radio Scouting
Online free HAM Radio course for Scouts, Guides, Rovers, Rangers
A Simple Spectrum Analyzer
Technical Reference/Spectrum Analyzers
This is a swept-filter spectrum analyzer. Basically, RF and swept oscillator signals are fed to a mixer and the output of the mixer is passed through a highly selective crystal filter.
WSJT-X 2.6.0 New version available to download
WSJT-X 2.6.0 has been officially released and implements new features supporting the ARRL International Digital Contest and several new improvements.
A More Efficient Magnetic Loop Antenna
Antennas/Magnetic Loop
The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother.
Top Amateur Radio Websites - Issue 2302
Measuring HF Balun Performance, Understanding Antenna Gain in a Few Minutes, Icom External Keypad Connector Cable, Kenwood TS2000 vs TS590S, JUNIOR-2 ARDF receiver, History of the Radio, SWR analysis of a G5RV antenna, P29RO Log Online,
Antenna too short! Inductivity matching with coil match.
Antennas/Antenna Calculators
Wire antenna calculator with inductivity matching coil where length shorter lambda/4
ARRL - Radio Scouting
Ham Radio/Radio Scouting
A web page dedicated to amaterur radio scouting. Scouting and Ham Radio — From Yesterday, Toward Tomorrow. Radio Merit Badge, Morse Code Interpreter Strip, Jamboree on the air
ARRL Audio News January 6, 2023
ARRL Volunteers On the Air Event is Underway
ARRL's yearlong operating event, Volunteers On the Air, or VOTA, began January 1, 2023. The event is organized as part of ARRL's 2023 theme, "Year of the Volunteers," which recognizes the contributions of ARRL member volunteers, and offers opportunities to become more active and involved in amateur radio and ARRL.
VOTA encourages participants to make contacts with ARRL members and volunteers, ea...
Bud Kozloff, W1NSK, Appointed as ARRL Connecticut Section Manager
Bud Kozloff, W1NSK, has been appointed as the ARRL Connecticut Section Manager starting on January 1, 2023.
Kozloff, who lives in Redding, Connecticut, is currently the president of the Candlewood Amateur Radio Association and a member of the Yankee Clipper Contest Club. He was appointed by ARRL Field Services Manager Mike Walters, W8ZY, after consulting with New England Division Director Fred K...
Amateur Radio Operations at the US Military Academies
The Service Academies Radio Group (SARG) was recently formed for alumni and amateur radio operators who are interested in the five U.S military academies.
William Curry, W5CQ, founder and net control operator for the SARG Net, said two months ago there was a new interest in forming a group and net. He noticed that only one military academy, West Point, W2KGY, was still operating a club station. ...
More Amateur Radio Astronauts Head for the International Space Station
Three of the four new astronauts on February's planned launch of the SpaceX Crew-6 mission to the International Space Station (ISS) are amateur radio operators.
The four crew members that comprise the SpaceX Crew-6 mission pose for a photo during a training session on the crew access arm at the Kennedy Space Center's Launch Pad 39A in Florida. From left are, Mission Specialist Andrey Fedyaev, Pi...
K3YTL Murgas Amateur Radio Club
The Murgas Amateur Radio Club is an ARRL Special Service Club in Wilkes-Barre, Pennsylvania, USA.
70MHz transverter
Technical Reference/Transverters
Homemade 4 meter transverter project
Amateur Radio Contesting Great Fred Laun, K3ZO, Silent Key
Fred Laun (Alfred A. Laun, III), K3ZO, of Temple Hills, Maryland, passed away on January 3, 2023. He was a member of the ARRL Maxim Society and Life Member, and a member of the Potomac Valley Radio Club.
Laun was also a Director for The Yasme Foundation, an organization that supports awards and grants that recognize and advance the achievements made by radio amateurs. "Fred's service to Yasme an...
Six Meter Yagi
Antennas/6M/6 meter Yagi Antennas
A 4 element Yagi Antenna for six meters band
Morse key and buzzer project for Scouts
Ham Radio/Radio Scouting
This morse key and buzzer design only requires parts that one may already have or are easy to find on the web. There is nothing critical except that the contacts must meet when the key is depressed.
Spiral Dipole Antenna for 40m
Antennas/Spiral
This antenna is an off-center fed spiral dipole for 40 meters. The spiral dipole is very compact, making it well-suited for limited space (like an apartment patio), while the off-center feed gives the antenna some multiband capability.
Microvert Antenna for 40m by ON7IR
Antennas/Capacitive
A mircovert antenna assembled for the 40m version of the DL7PE antenna.
A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).
A 7 elements 144MHz yagi antenna
Antennas/2M
A home made project for a 7 element yagi antenna for the two meters band based on the DK7ZB original desing.
Top Amateur Radio Websites - Issue 2301
Robust Packet Network, Proplab-Pro, K1IW Amateur Repeater and Broadcast Transmitters Database, Radio Wave Transmission Paths, HF Nets, Who Invented Radio, Listening in on the Stars
End fed half wave antenna 40/30/20m
Antennas/End-Fed/End Fed Half Wave Antenna
For my SOTA activities, i recently bought a QRP transceiver QRP SW-3B, which is a three-band QRP CW only for 40/30/20 m.
So, i needed an antenna that would allow to use these 3 bands in SOTA portable activity.
Already having some experience with the EFHW antenna, i decided to build one for 40/30/20m.
RX Loop antenna
Antennas/Receiving
This loop antenna is intended to be connected as an antenna for receivers that do not have a built-in antenna such as an HF set or an old tube radio. This square barrel is wound on a wooden frame.
It consists of two windings that are galvanically isolated from each other, a main and a coupling winding. The diameter is about 40 cm.
The K7RA Solar Update - December 29, 2022
ARRL Straight Key Night Begins January 1, 2023 at 0000 UTC
ARRL Straight Key Night (SKN) is January 1, 2023, from 0000 UTC through 2359 UTC. In the US, SKN begins on New Year's Eve.
Many hams look forward to SKN as one of the highlights of their operating year. Operators participate using Morse code (CW). All you need is your favorite straight key or bug. Many participants dust off vintage radios and keys and put them back into service each year, just f...
ARRL Headquarters will be Closed on Monday, January 2
ARRL Headquarters will be closed on Monday, January 2, 2023. There will be no W1AW bulletin or code practice transmissions on that day. ARRL HQ will reopen on Tuesday, January 3, at 8 AM EST.
ARRL wishes all our members a very Happy New Year!
VK4ZXX Ham Radio blog
Blog site for various home brew projects including antennas, power dividers etc
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