Inovato and N0LSR Design support and promote the OHB project
OHB public server keeps your HamClock running indefinitely.
N0LSR Design

Useful knots and applications for Radio Amateurs (PDF)
253 pages discussing ropes, knots, and their application within the Radio Amateur community.
PA3DJS

Fifty things you can do with a software defined radio
This project attempts to create GNU Radio flowgraphs for each of those items.
Onno VK6FLAB

Ham Radio Manifesto: From utility to creativity
The current approach to Amateur Radio, focused on communication and disaster relief, is no longer sufficient to attract today’s technical profiles.
F4JXQ

TPRFN launches live network views
Your real-time pulse on system performance.
TPRFN

KX2 battery capacity when charged from different voltage sources
I was curious to see how a lower charging voltage would correspond to capacity.
AE5X

Online museum tours and talks
You don’t need to travel the world to visit and enjoy many of the most impressive museums related to Ham Radio and radio communications.
Amateur Radio Events

Ham Radio Dashboard
Displays solar weather, band conditions, the 11 closest Ham Radio satellites, and data from PSK Reporter.
Andreas Peters

United States Bunkers on the Air
USBOTA joined the Worldwide Bunkers on the Air (WWBOTA).
USBOTA

The Last of the hybrids: Kenwood TS-830s
These transceivers aren’t “all-tube” in the boatanchor sense, nor are they fully solid-state like modern SDRs
Ham Radio QRP

Video

AMSAT discusses futureGEO
President Glasbrenner talks feasibility of a geostationary Ham sat.
AMSAT

The story of the Hams that founded Zenith
What happened to the factory that put a television in every American living room?
The Last Shift

FT2: The fastest digital mode ever created
3.8-second cycles — Complete QSO in 11 seconds. 4x faster than FT8.
FT2

Parks on the Air’s explosive growth and the next chapter
POTA is usually described in simple terms: It’s growing quickly.
Q5

BAOFENG UV-5R Mini: First impressions
These things are small. They are about the size of an FRS radio but feel a little more solid in the hand.
Random Wire

Anytone AT-D890UV full duplex satellite HT
This new HT should have real full duplex capability – it can transmit on VHF and receive on UHF without any desense.
AMSAT-SM

Zero Retries Digital Conference 2026 announced
ZRDC 2026 will be held on Friday 2026-10-16 at the Roundhouse Conference Center in San Ramon, California, USA.
Zero Retries Digital Conference

Worldwide Bunkers on the Air
WWBOTA is an exciting mix of Amateur Radio and history enabling radio amateurs to ‘activate’ with portable and mobile operations from historic bunker locations.
WWBOTA

SWR Magazine Waves Weekend
An on-air special event taking place on February 21, 2026. We will be activating KP3SWR from Puerto Rico.
SWR Magazine

RSGB: A year in numbers 2025
Amateur Radio continues to evolve and the RSGB, in turn, develops how it supports current radio amateurs and reaches out to new audiences.
Radio Society of Great Britain

WQ2XDM – New US experimental callsign for radio propagation tests
K9JMS recently received permission from the FCC to carry out propagation tests at 40 MHz (8m) and 70 MHz (4m).
EI7GL

Video

You should try Linux for Ham Radio today
It’s never been easier running Linux on a cheap laptop for Ham Radio.
Ham Radio Crash Course

The ultimate emergency comms trailer
A detailed tour of the brand-new Duval County ARES trailer.
KM4ACK

FT2 is the fastest digital mode ever created
With 3.8 seconds per tx/rx, this has been claimed to be the fastest digital mode to date.
Tech Minds

Indiana Amateur Radio license plate
New design for Indiana Amateurs.
ARRL Indiana Section

Amateur Radio Software Award nominations
Promoting software projects that enhance and adhere to the spirit of Amateur Radio: innovative, free and open.
Amateur Radio Software Award

Why I resigned after 12 years as assistant director of the ARRL Delta Division
This is a principle issue in my eyes.
K4FMH

Petition for Rulemaking response
The prohibition on encryption is a primary deterrent against the commercial use of amateur spectrum.
AC5A

ADRCS collaborates with TARPN on IP400 Project
This will extend the functionality of the IP400 network to conventional radios on the 2M, 220, and 450 MHz bands.
ADRCS

We’ve calculated all the views on the planet
Click on any point to show the longest line of sight at that location.
All The Views In The World

Practical guide to receiving HF weather fax
One of the most rewarding niches in the shortwave hobby.
DXR electronic Bits

Can you work DX on VHF & UHF?
Yes, you can.
OnAllBands

Trials & Errors #73: Playing at Radio
An ‘accidental’ journey into radio, born out of curiosity.
QRZ

Putting together a new ham starter package
Nudging a teacher to Tech after a historic school contact with astronaut Chris Williams.
K3LOE

SolarCdx.com
Solar weather insights for Hams.
SolarCdx.com

Amateur astronomers detect signal from Voyager 1 spacecraft
Voyager 1 is now 15 billion miles from Earth.
IFLScience

open-hamclock-backend aims to keep HamClock ticking
A group of Ham Radio operators have stepped up to keep HamClock operating beyond its scheduled sunset in June.
open-hamclock-backend

OpenHamClock
A real-time Amateur Radio dashboard for the modern operator.
OpenHamClock

Weekly Wednesday FSQ night
We will help stations new to the FSQ mode practice with relay and trigger commands, as well as answer questions regarding the mode in general and provide operating tips.
FSQcall

SETI@home
One of the most popular crowd-sourced research projects ever turned up some 12 billion signals of interest. A lengthy analysis found 100 worth another look.
UC Berkeley

3D print Moxon rectangle antenna
A simple OpenSCAD script you can use to generate a frame for a Moxon rectangle antenna and print it on your 3D printer.
Gaspode T. Wonderdog

Petition for Rulemaking: Encryption and Ham Radio
Permit limited use of cryptographic protection for certain Amateur emergency and resiliency communications.
FCC

Ampersand Linking Project
AllStarLink without the use of Asterisk.
Bruce MacKinnon

The best CHIRP file for SARnet
Select the channel covering the mile marker where you entered the highway, and press your channel ⬆️ or ⬇️ button at each suggested mile marker.
Playground Amateur Radio Club

Emergency Ham Network
A transformative approach to Amateur Radio’s future by creating a symbiotic relationship between licensed operators, students, and modern IoT technology.
EmergencyHam.net

BlueDV DV Radio
Supports multiple DV modes simultaneously (DMR, D-Star and Fusion).
PA7LIM

Video

The KJ6ER marauder antenna
A portable 2-element vertical Moxon.
K5OHY

Comparing the original Baofeng UV5R to the new Mini
Which has a better receiver? Which is better for packet/APRS radio?
KM6LYW

I decided to look into my internet connection setup. The motherboard I have for my PC does have WiFi via two small antennas on the motherboard. I am using a TP-Link extender in the hallway,

TP-Link extender

which has a LAN connection. I attached a LAN cable to the TP-Link and plugged that into a TP-Link LAN switch beside my PC. From the LAN switch, one LAN cable went to my PC and the other to the Icom 7610 radio. I tried split toroids on the LAN cables and LAN switch power cable. That did not work. I then just used the WiFi connection on the PC to the TP-Link extender in the hallway—that did not work. I then connected my PC WiFi to the main WiFi from our router in the living room, thinking the TP-Link extender could be the issue, and that did not solve the issue.

Hamvention 2026 theme and logo
Our theme for Hamvention 2026 is “Radio Adventure!”
Hamvention

HamClock project to sunset June 2026
The HamClock project will no longer receive updates.
Amateur Radio Daily

Ham Radio isn’t growing and it’s all your fault
Hang around the Amateur Radio community for a few decades and its many peccadillos will be revealed to you one by one.
KE9V

NASA selects participants to track Artemis II Mission
Hams selected to track the Orion spacecraft during the crewed Artemis II mission’s journey around the Moon.
NASA

SWR Magazine
Inform, educate, and inspire the global Amateur Radio community through high-quality technical content.
SWR Magazine

A snapshot of U.S. POTA sites, activators, and activations
Do we actually know much about POTA activity growth through empirical data?
K4FMH

Winter Field Day 2026 reflections
Is Ham Radio relevant for emergency communications and prepping?
KM1NDY

How to help others help you
Good advice for Radio Amateurs asking for help with their stations or their projects.
KB6NU

ARDC priority areas of funding offer opportunities for Hams
ARDC welcomes grant proposals across the full range of Amateur Radio and digital communications.
ARDC

Buying a used radio
How to avoid getting stuck with a dud.
Off Grid Ham

The Morse Code of resistance
Alan Higbie’s Army enlistment was to avoid the infantry; he communicated to a revolution.
RadioWorld

Video

MeshCore messaging
Let’s take a look at MeshCore, an evolutionary successor to the popular Meshtastic secure peer messaging network.
KM6LYW

Shack tour
I’ve made some upgrades to the shack in the last month or two so I thought I’d take you on a little tour.
Ham Radio Tube

Amateur Radio operators in Belarus arrested, face the death penalty
The arrests are an extreme attack on what is most often a wholesome hobby.
404 Media

What did Belarusian “Amateur Radio spies” actually intercept?
Enthusiasts were able to listen in on both the military and Lukashenka’s security service.
BELSAT

What’s new at Digital Library of Amateur Radio & Communications
I have two topics to share this month: first, some of the newest additions to the DLARC library. Then, some of the oldest items in the library have entered the public domain.
Zero Retries

Find your next QSO on SpottedHam
Real-time email alerts for you and your friends.
SpottedHam.com

Getting started with FreeDV
A beginner’s guide to digital voice on Amateur Radio.
DXR Electronics

What can a new ham spend in a year? $4,881.34
Reflecting on the 168 Amateur Radio-related items I purchased during my first year as an operator.
K3LOE

How accurate is a 125 year old resistance standard?
With mahogany construction and brass contacts it sure looks stylish.
Hackaday

WARC—What is it good for?
They’re peaceful, they’re underrated, and they’re the perfect escape from the big, popular, congestion-prone bands.
OnAllBands

DL0IGI 10m beacon in Germany heard via Auroral-E
I was expecting to hear some distorted auroral signals but instead, the CW signals were clear, a sure sign of Auroral-E.
EI7GL

Video

The Rybakov antenna gets a serious upgrade
When Chameleon introduced their Faraday Strip Radial system, I knew they were going to be a game changer.
KB9VBR

Microwave HamTV from space (not SSTV)
The International Space Station has started transmitting HamTV.
Save it for Parts

FlexRadio’s Hayley, K5HMV discusses innovations in SDR Ham Radio technologies
Insight into how the company develops its software and related Amateur Radio technologies.
DX Engineering