Improved Filter for TS440 - CF2 Slot
The page provides details on an improved filter for the TS440 CF2 slot with ... - Listed in Radio Equipment/HF Transceivers/Kenwood TS-440S
Kenwood TS440 Transceiver Mods
The page provides a collection of modifications and upgrades for the Kenwood TS440 transceiver. ... - Listed in Radio Equipment/HF Transceivers/Kenwood TS-440S
ARRL Audio News June 27, 2025
ARRL Audio News June 27, 2025
2025 ARRL Field Day is This Weekend!
Sharing ARRL Field Day with Others via Social Media
Field Day Safety – Tips From an Experienced Compliance Officer
By: Bill Mader, K8TE, Section Manager of the ARRL New Mexico Section One of the many ways to earn bonus points during ARRL Field Day is to have a Safety Officer on site who makes use of the Safety Officer Checklist [PDF]. Safety shouldn’t stop there! Many pictures of Field Day sites indicate that running that checklist alone is inadequate. Having been involved with safety professionally in the U...
HF Propagation: Understanding Radio Signals
This PDF file provides detailed information on HF propagation for ham radio operators. It ... - Listed in Propagation/Beginner's Guide
TS-440S Service Manual
Kenwood TS-440S service manual PDF File, English version - Listed in Radio Equipment/HF Transceivers/Kenwood TS-440S
Kenwood TS-440S Repair and Alignment Notes
This page contains detailed notes on repairing and aligning the Kenwood TS-440S HF radio. ... - Listed in Radio Equipment/HF Transceivers/Kenwood TS-440S
Top Amateur Radio Websites - Issue 2512
Wire Antenna Calculator, QRP Silent Antenna Tuning Unit with Built-in Noise Bridge, TS-590SG Station Monitor, Why AM Radio Shines at Night: Sky-Wave Magic, Compact and Stable Mobile Antenna: The SN 1/8 Design, Compact QRP SWR Meter with OLED Display , Low-Current Si5351-Based Digital VFO with Nokia Display,
Starting in simple software defined radio
This page explores the world of Software Defined Radios (SDRs) in the context of ... - Listed in Technical Reference/Software Defined Radio/Beginner's Guides to SDR
Amateur Radio Guide - Community Driven and Multilingual
This page serves as a comprehensive guide for hams, providing open-sourced information that is ... - Listed in Operating Aids/Beginner's Guides
40m SSB Project Walford Stone Transceiver
This page details the construction project of the 'Stone', a QRP double conversion superhet ... - Listed in Technical Reference/QRP Projects
Local, County, and State Governments Proclaim Value of Amateur Radio
The Amateur Radio Service is of great value to communities around the nation. Through served agencies, the trained corps of technical and civic-minded operators provide a no-cost service to the public that has shown to be valuable before and When All Else Fails®. The 2025 hurricane season has been forecast to be above normal by the National Oceanic and Atmospheric Administration (NOAA). As we sa...
Fiberglass Push-Up Mast Revisited: Portable and Home Stations
This page discusses the purchase of a fiberglass push-up mast for portable operations in ... - Listed in Antennas/Masts and mounts
Protect the Most Important Element of Field Day: The People
That includes yourself! Late June holds the Summer Solstice, and in North America where Field Day takes place, that means a higher likelihood of long, hot, summer days. If it’s not everyday you’re working in the heat, you especially need to take care of yourself. Dr. Carol Milazzo, M.D., KP4MD, is the Section Manager of the ARRL Sacramento Valley Section. She’s also a practicing physician. She k...
AN-55A ATV Handbook - an Introduction to Amateur TV
The AN-55A ATV Handbook PDF is a document providing information and guidance on Amateur ... - Listed in Operating Modes/Amateur Television
ARRL Audio News June 20, 2025
ARRL Audio News June 20, 2025
2025 ARRL Field Day is Next Weekend
Lather on the sunscreen and get ready for the fun! 2025 ARRL Field Day is June 28 - 29. It is amateur radio’s biggest yearly event. The sun has been very active at the peak of Solar Cycle 25. ARRL is hopeful that it will mean 2025 becomes a legendary Field Day. Get out to an activation and enjoy a good time with your fellow hams. Use the Field Day Site Locator, featuring more than 1200 sites, if...
ARRL Announces Logbook of The World® Systems Upgrade
ARRL’s Logbook of The World® (LoTW®) is the 2nd most popular benefit among members. It is also an extremely popular service internationally for non-members, as it is the primary means for providing confirmations for ARRL Awards, such as DXCC and Worked All States. As a part of the ongoing modernization of the ARRL systems infrastructure, LoTW will be receiving major upgrades to the operating sys...
Dual Band Yagi Antenna for 6 and 2 meters - Review and Installation
This page provides a detailed review and installation experience of a new 6 and ... - Listed in Antennas/6M
Hurricane Erick Updates
Hurricane Erick Update for June 19, 2025...12:30 PM EDT Hurricane Erick made landfall early Thursday morning, June 19, along Southern Mexico's Pacific coast. It has been upgraded to an "extremely dangerous" Category 4 status, according to the US National Hurricane Center. Forecasters now warn that the major storm will unleash devastating winds at the eye's landfall as well as the potential for fl...
OM0ET Ham Radio Aerials
OM0ET manufacture high capacity variable air capacitor and tuning unit designed for Magloop antennas. ... - Listed in Manufacturers/Antennas/HF/Magnetic Loop
DL6ZB ZB-4 CW QRP Transceiver
This page provides a detailed review of the ZB-4, 4 Band CW QRP Transceiver ... - Listed in Technical Reference/QRP Projects/QRP CW Transceiver
Mini Ununtenna Design Guide
This PDF document provides a design guide for a mini ununtenna, a popular antenna ... - Listed in Antennas/Wire
Ham Radio Reports Fire; Helicopter Crew Extinguishes Just in Time
Amateur radio operators preparing for a contest sponsored by ARRL The National Association for Amateur Radio® used ham radio to report a forest fire just before winds picked up. By John Ross, KD8IDJ
With the help of amateur radio operators, a potential wildfire was averted in California on June 12. Amateur “ham” radio is a thriving technical hobby with members active all over the world. Hams ofte...
SIMPLEX Radio Repeater Management Software
This page offers the latest version of SIMPLEX, a freeware program designed for hams ... - Listed in Software/Repeater Control
Auto Keyer for Radio Fox Hunting Project
This page presents a project involving attaching an amateur radio transceiver to an Arduino ... - Listed in Technical Reference/Arduino
Hamparts Shop
HamParts produces and sell remote control accessories for ham radio operators, including antenna switch ... - Listed in Shopping and Services/Accessories
ARRL Audio News June 13, 2025
ARRL Audio News June 13, 2025
ARRL Section Manager Nomination Results
The 2025 ARRL June VHF Contest is This Weekend
The 2025 ARRL June VHF Contest is this weekend, starting at 1800 UTC on Saturday, June 14, and concluding at 0259 UTC on Monday, June 16. Late spring weather brings enhanced tropospheric ducting and meteor scatter. Plus, it’s the peak of the sporadic-E season. Take advantage of these propagation enhancements and have some fun on the VHF and UHF bands. ARRL Contest Program Manager Paul Bourque, N...
Jobs for Hams: Join the ARRL Team
ARRL is looking for some new members of our Newington, Connecticut-based headquarters staff. There are several roles for which we’re seeking qualified candidates. If you’re into amateur radio, ARRL is a tremendous place to work. The Membership Manager is responsible for leading efforts related to ARRL membership growth, engagement, and retention. This role serves as the primary point of contact ...
2025 ARRL Field Day - Are You Ready?
ARRL Teachers Institute – Multiplying the Message
ARRL The National Association for Amateur Radio® welcomed the year’s first cohort of educators to attend a session of the ARRL Teachers Institute on Wireless Technology (TI) at headquarters this week. The group follows on the success of the Louisiana-based session last week, and one on Staten Island in New York City this past in January. The educators traveled from all over the country to attend...
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