APRS Connect
A new APRS client for Android, built around conversations rather than a packet console.
APRS Connect

The next version of the M17 specification
The proposed V3 meets the goals set out for it, but are there any downsides?
M17 Project

AST SpaceMobile’s 800 MHz trial wraps up — But the 70cm interference story isn’t going away
Monitoring data from the SATNOGS network has reportedly shown AST operating with interference to the 70cm Amateur allocation.
ICQ Podcast

FCC regulations and MeshCore 500
We, along with many in the Meshtastic community, recently found out that most of Meshtastic’s presets are not in compliance with the FCC.
Philly Mesh

Which downlink? An open trade study of candidate bands for futureGEO
If the host cannot offer 3 cm, 6 cm (5830–5850 MHz) is the strongest fallback on physics.
Open Research Institute

A Lewis & Clark POTA journey
The main idea is to do a road trip, starting in St Louis, near the Gateway Arch and follow 3,700 miles of river, prairie, mountain, and forest to the Pacific Ocean.
K0NR

PARC: Protected Area Radio Community
PARC Community® is the new Amateur Radio park activation program. Simple, accessible, and open to all Radio Amateurs worldwide.
PARC

Improving the “Titanic” 40m field expedient backpack portable antenna
The revised “Titanic” antenna’s sloping top hat wires are supported on trekking poles, although raising the ends higher does improve the SWR.
Ham Radio Outside the Box

A few things that have made my POTA spots easier and better
I’ve done a lot of experimenting and I finally landed on a set-up that works for me.
Andrew Woodward

Putting my AllStar node on 44Net
Here is how that went, including the parts that did not go well.
EtherHam

Upcoming Events

EN100NP on the Air to Honor 100th Anniversary of Symon Petlura
June 8, 2026

9/11 ‘We Do Remember’ Special Event Returns for 6th Year
September 9, 2026

Activate All RI POTA Event
September 11, 2026

CHOTA 2026: Churches and Chapels on the Air
September 12, 2026

Video

The Ham Widows Ball started with $100—and you’re not invited
There’s a side of the World Radiosport Team Championship (WRTC) that has nothing to do with radios, antennas, multipliers, or scores—and Bill Vinci believes it can make ham radio stronger.
Q5

Ham kit building is booming
Stu, Tom, and Quin present the current Ham Radio rig kit companies and products.
Ham Radio Perspectives

Chasing birds: The addictive world of Amateur Radio satellites
An introduction to the world of Amateur Radio satellite working.
Online Amateur Radio Community

Unveiled at Tokyo Ham Fair 2026: Introducing the new Icom IC-7110
The new IC-7110 succeeds the popular IC-7100 combining a versatile HF/50/70/144/430MHz all-band mobile design with a vibrant 4.3-inch colour touchscreen and advanced dualwatch capabilities.
Icom

Ceefax Station
Old-school Ceefax teletext pages — on your PC, and optionally over Amateur Radio.
M7TJF

Call sign WB4MZ0 (numeral zero)
An FCC error gave one club a unique call sign.
K4HST

FreeDV RADE: A new approach to digital voice over HF, now integrated into popular radios
Since late 2023, FreeDV has been working to create a digital voice mode that could compete with SSB across varying signal-to-noise conditions on HF while providing more natural-sounding speech.
ARDC

WRTC 2026: Now we know it was riddled with cheating
Four teams have been disqualified and the results of WRTC 2026 have changed.
KE9V

Online Remote Radio
Online Remote Radio was built to provide a simple way for amateurs to experience what FlexRadio has to offer using just a web browser. Whether you’re a seasoned operator looking to get back on the bands, a newcomer studying for your first license, or a shortwave listener who loves the hobby — if you’re limited by cost, physical ability, RFI, or HOA restrictions, we have a station for you. Station owners who want to give back to the hobby share their FlexRadio stations with the community when not in use.
Online Remote Radio

Visit with a blind Ham operator
Archer72 talks through a noise issue with Matthew (KG4QWH) concerning his desktop mic.
Hacker Public Radio

QSO in a Kilo(gram)
This bag fits in one hand and disappears into my backpack.
KZ4LY

HTCommander
A free, Open-Source EchoLink and Internet APRS software that supports Benshi radios. Program channels, chat over APRS, send Winlink email, track satellites and more.
HTCommander

CEMOTA: Cemeteries on the Air
Hunt from anywhere, or activate from a listed cemetery.
CEMOTA

Automatic net logging: Who it’s for, and getting audio out of a hub node
I had exactly one use in mind: I wanted a record of nets. Who checked in, what got discussed, all in a form I could search later.
EtherHam

First transatlantic LEO satellite QSO
Now that the antennas are mounted about 5 meters higher on the roof, a whole new range of possibilities has opened up.
RZ01

Video

Networked Off-Grid Communications Terminal (NOCT)
NOCT is an all-in-one communications and situational awareness platform designed for reliable communications when traditional infrastructure isn’t available.
The Comms Channel

Unboxing the Icom IC-2730A Black Edition
In this video, we’re taking a first look at the Icom IC-2730A Black Edition, Icom’s popular dual-band VHF/UHF mobile radio with a sleek all-black control head.
Syber Radio

Microwave SOTA activation
My first microwave SOTA QSO on 13cm with SG Labs transverter.
GM5ALX

SpotHole
Spothole is an aggregator of Amateur Radio spots from DX clusters and outdoor activity programmes. It’s free for anyone to use and includes an API that developers can build other applications on.
M0TRT

Zero Retries Digital Conference (ZRDC) 2026 to bring Amateur Radio technology and innovation to San Ramon
ZRDC 2026 Registration is open!
ZRDC

QDX-M assists in the rescue of a spelunker
Rescuers attempting to retrieve a cave explorer made use of a QDX-M built for the 2200 meter band (136 kHz).
AE5X

HFPilot
Your go to app for estimating HF propagation that works offline.
HFPilot

The EMF Explorer: A badge for Ham Radio?
Ham Radio is missing the boat by not having cool badges.
KB6NU

Getting started in Amateur Radio
Amateur Radio is a playground for exploration and adventure. To get you started and begin to explore the landscape here is a list of resources to whet your appetite.
VK6FLAB

DXChrono
A dedicated shack-wall display for Amateur Radio operators.
DXChrono

Pakistan’s Amateur Radios are tuned in for the apocalypse
Hams prove the oldest technology is still the hardest to break.
Prism

Mt Barker balloon launch
Cross-band repeater, live imagery, MeshCore, telemetry, and more.
Amateur Radio Experimenters Group

Can an LLM pass the US Ham license exams?
The answer is very much, yes.
Copasetic Flow

Video

How-to: The off center fed L-dipole antenna
Could this be the next big thing?
KB9VBR

2 Meter FM simplex net on August 22, 2026
Recording of the 2m FM simplex net in the Rochester, NY region with realtime distance maps.
N2MAK

Hunstville Hamfest this weekend
For the first time since 2007, we will again host the ARRL National Convention.
Hunstville Hamfest

Ham donates $1 million to ARRL
Entrepreneur and Amateur Radio operator invests in the next generation of problem solvers.
ARRL

Making Hams of hackers
Facilitating Tech classes at DEFCON and Hackers on Planet Earth (HOPE).
KB6NU

Helioclock
A new all-in-one next generation situational awareness display with live SDR.
Helioclock

RepeaterLive
The repeater directory Hams actually trust.
RepeaterLive

#APRSThursday
An APRS net held every Thursday with the aim of growing message activity on APRS across the world.
APRSPH

Cave radio – Talking through solid rock
Radio signals don’t pass through rock to reach caves, mines, and tunnels, right?
Make:

I built a Yagi… Then carried it 20 miles
May I introduce to you, The M1TJM Botherer Magnet. An antenna that is guaranteed to raise a few eyebrows.
M1TJM / SOTA Reflector

Winlink tells you what happened. APRS tells you what’s happening
Two tools, two jobs, and why most EmComm plans only cover one.
EtherHam

Beyond packet radio
Designing a modern radio broadcast protocol (HQFBP).
F4JXQ

MeshWX Pro
MeshWX Pro watches the National Weather Service and automatically broadcasts severe-weather warnings across your Meshtastic or MeshCore network.
MeshWX Pro

A great tool to find new POTA parks
There’s an excellent online tool to find POTA parks that you have yet to activate.
Andrew Woodward

Video

AmateurLogic 220: It’s going to get meshy
Building a solar powered mesh node and the rapidly growing Gulf Coast Mesh Network.
AmateurLogic.TV

Inside Icom: Behind the scenes at our factory in Japan
Ever wondered where your Icom radio comes from? Take a look inside Wakayama Icom, our state-of-the-art manufacturing facility in Japan.
Icom UK

FCC Ham “Call Book” in PDF and CSV formats
The call book supports Ham Radio enthusiasts who suffer little-to-no internet bandwidth while chasing QSOs — or when your favorite search site goes down for (un)scheduled maintenance.
Playground Amateur Radio Club

Amateur Radio has never been more affordable
So why do some things seem so expensive?
QRPer

Ragchew Lounge
A relaxed place where operators can drop in, meet other hams, have a chat and make new radio friends from around the world.
avelichat

The very last new commercial AM radio station in the USA
Here’s what we should do next.
Off Grid Ham

OMD — Optical Modem
33 KB/s file transfer via light, adaptive OFDM with per-carrier bit loading, zero-install browser receiver.
Muggy86

An Outside the Box look at the 48 inch base loaded vertical antenna
It’s not the smartest idea really is it?
Ham Radio Outside the Box

Email QSLs: Sense or nonsense?
Let me lay out the pros and cons.
DB4SCW

At last! FT8 on iPad & iPhone
It’s a great experience with Greyline FT8 and Digirig Lite.
Andrew Woodward

The signal never died
Peter I, Bouvet, and the operators who carried DX forward.
KA3DRR

New Jersey Amateur Radio plates
Photos of NJ Ham Radio license plates going back to 1959.
moini.net

Four Days in August (Hunstville)
These are hands-on, conversational, bring-your-own-questions gatherings focused on doing the thing, solving the problem, and sharing what actually works in the field.
Temporarily Offline

Video

Cootie-style single paddle CW key
A compact portable single paddle key with a sideswiper style lever, tight action, and small contact spacing.
W4ARB

VARA Winlink email speeds with Mercury HF
Special thanks to KO0OOO for hosting possibly the first Mercury HF Winlink server.
KM6LYW

Morning Morse Code in the Alberta Badlands
Join me for a Sunday morning 3-park rove in the Badlands of Southern Alberta Canada.
VE6LK

Breaking – OFDM-AB – IP400 Refactored
The Amateur Radio data communications revolution of the 21st century.
Zero Retries

Geographic analysis of US Amateur Radio licenses using FCC and Census data
Where have new grants grown over the past X months? Do older counties have higher ham density? (ecological correlation)
KK4SW

Amber Silver Alert net Program (ASAP)
How about passing traffic from field deployed amateur operators to local law enforcement about the status and progress of an AMBER alert search team?
KF5THB

ZRDC 2026 registration now open
This year’s conference will bring together Hams and people interested in the technological innovations in Amateur Radio to explore and listen to expert speakers, regarding various topics pertinent to digital communications.
Zero Retries

How to become a Radio Amateur
When you discover a good thing it’s human nature to want to share it with others.
KE9V

Choosing FT8 frequency & interval on 6 meters
There are behaviours that are unique to 6 meters due to the unique character of DX propagation.
Pattern and Match

bkjbbs
Packet radio BBS, KISS, and AX.25 library for Node.js.
jfedyczak

If your cell phone doesn’t work during a disaster, ‘Look for the houses with an antenna’
The West Contra Costa Emergency Radio Group, founded in 2018, has grown to include dozens of members in multiple cities who have the technology to communicate during emergencies.
Richmondside

My radio club asked me to assemble and evaluate their new Hustler repeater antenna
Anybody who may aspire to build their own 3-element stacked 5/8-wave 2-meter antenna will find this material valuable.
K8EBR

cw-dit: Cross-platform multi-channel CW/Morse decoder in Rust
With an SDR, skim every CW signal across the radio’s full sampled bandwidth.
KK4SW

Building a homemade weather radar with a HackRF or PlutoSDR and salvaged automatic RV dish
After nearly being hit by a tornado that NEXRAD didn’t see coming, Koakno decided to build his own DIY self-contained mobile weather radar built from a $5 salvaged RV satellite dome.
RTL-SDR

Video

APRS net control software
Net Central works in a real net environment, covering the check-in workflow, live map tracking, messaging alerts, and the close net reporting process, built for Amateur Radio operators who want a modern, automated approach to running APRS based nets for EmComm, ARES, and general Amateur Radio net control operations.
KM4ACK

Family of KY student says deputy seized child’s radios without warrant. They’re suing
A Somerset family has filed a lawsuit against the county’s school board and local law enforcement, alleging a deputy wrongly seized two-way radios from a student without a warrant.
Lexington Herald Leader

The integrity question: Inside the WRTC 2026 Multiplier Investigation
Public log analysis has raised serious questions about suspected pirate callsigns, disputed multipliers, and how the world’s premier radiosport competition should respond.
Q5 Magazine

MODEM73
An open source software modem that works with any HF, VHF, or UHF radio capable of 2400 Hz of bandwidth.
MODEM73

Expanding Technician privileges: The fix needs a push
There’s a real, already-written fix for one of Technician licensees’ most common complaints — and it’s been sitting in an FCC docket since 2018.
EtherHam

What’s new at Digital Library of Amateur Radio & Communications — July 2026
DLARC has significantly expanded the AMSAT Symposium archive, adding about 250 new items from AMSAT Space Symposium events. Newly archived material includes audio recordings of the 2007-2008 presentations.
Zero Retries

SDRoxide: Software-defined transceiver
A powerful SDR transceiver client with a GPU panadapter, dual VFOs, neural noise reduction, built-in skimmers, a full stack of digital modes and a live 3D space-weather globe — wrapped in a cyberpunk interface and running native on Linux, macOS & Windows, or streamed to any browser.
SDRoxide

Reticulum
The appeal of reticulum is that it seems to extend the LoRa thing to include mini web pages and a different way of interacting. A cross between packet, the general internet, and normal messaging.
G7KSE

Zero Retries Digital Conference 2026 call for papers
A typical technical paper for ZRDC is a short (typically 5-10 pages) but in-depth explanation of a project, experiment, or new technique.
Zero Retries

I made an AFSK RTTY encoder for the Sony PSP
The PSP is acting purely as an encoder, generating the RTTY audio tones which are then received and decoded externally.
Reddit

TunerScope: A browser app to help optimize HDTV antenna positioning with an RTL-SDR
TunerScope has a few interesting features, including the use of spectrum stitching to visualize the full 6 MHz + wide ATSC signals as the RTL-SDR only provides 2.56 MSPS max.
RTL-SDR

Olivia spotting
View live on-air station spots, filter by mode/band, and spot station activity in real-time.
OliviaDigitalMode.org

Feds hunting for German spy found a 12-year-old radio genius instead
Francis “Frank” Ryder, whose remarkable talent for radio led federal agents to his Brooklyn home during World War I before he went on to found the Suffolk County Radio Club.
South Shore Press

A visit to Nashville’s WSM AM
Photos from the transmitter site of the station that birthed the Grand Ole Opry.
RadioWorld

Video

This 3D printed trailer hitch antenna mast mount is awesome
Printed on Bambu P1S with Bambu PETG, 10 walls, 40% infill.
Ham Radio Tube

40M V Dipole vs 130′ EFHW
The results are not what you expect.
Hounds and ham