A site for Amateur Radio Operators, by Amateur Radio Operators.





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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
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
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
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
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
The Best Amateur Radio Links of 2022
A list of best new amateur radio links we reviewed in 2022
Radio Scouting K2BSA
Ham Radio/Radio Scouting
Radio Scouting is the intersection of Scouting and amateur radio. As such it introduces Scouts to the fun, technology and magic of amateur radio. It does this through the power of the world’s largest Scouting event, Jamboree on the Air, with over 700,000 Scouts engaged in connecting with one another through amateur radio the third weekend of October.
Yaesu FT-818 and FTM-400 will be discontinued
Yaesu announces the end of production of the FT-818ND and FTM-400XDR due to difficulties with the availability of some components.
Spiral Antenna for SDR
Designing and Testing a PCB Wideband Spiral Antenna. The 800 MHz+ and 300 MHz+ spiral antennas by Hexandflex
FT8WW Log Online
DX Resources/Logs
Online log for FT8WW Crozet Island DX Pedition 2022
Radio Scout Frequencies
Ham Radio/Radio Scouting
Information on frequencies suggested as Scout amateur radio frequencies. These were initially suggested by the World Organization of the Scout Movement and their Jamboree on the Air organizer. As with all amateur radio frequencies they are a shared resource. If someone else is already on that frequency, move up or down to find a clear frequency for calling.
Top Amateur Radio Websites - Issue 2245
Wavecom W-CODE, Do not wind chokes on red toroids!, How does an antenna tuner work ?, Fundamentals of Radio Waves Propagation, 160 meter antenna problems and solutions, Kenwood TS890S Mods, Gordon West W5YI Ham Instructor Program., TY0RU Benin DX Pedition, TY0RU Log Online
FT8WW Crozet DXPedition
DX Resources/DX Peditions/2022 DXpeditions
DXPedition to Crozet Archipelago by Thierry F6CUK December 2022, January 2023.
3C5J / MW0BRO Martin
Website of Martin Lewis, 3C5J & MW0BRO, operating from an oil platform offshore Bioko Island, Equatorial Guinea
Navy-Marine Corps MARS
Navy-Marine Corps Military Auxiliary Radio System
Heartland DX Association
The mission of the HDXA is to encourage DX activites in Eastern Nebraska and Western Iowa.
FT5/W Crozet 2022
DX Resources/DX Peditions/2022 DXpeditions
DXPedition to Crozet Archipelago by Thierry F6CUK December 2022, January 2023


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