ARPS.Chat – Send and receive APRS messages globally
Enabling operators to never miss a message, even when their radios are turned off.
RTL-SDR

Introducing Radio Alpha, the ARRL Museum and Research Library
There’s a new resource from ARRL documenting the history of Ham Radio.
ARRL

Texting with M17 just got easier
The most convenient one is to use KD0OSS’s fork of OpenRTX.
M17 Project

Introducing RTQM, QRZ’s Real Time QSO Manager
It’s a way to call CQ silently, as well as a way to know exactly when stations are standing by.
QRZ

Converting your WPSD hotspot to WPSD-M17
Follow my steps to successfully convert your hotspot running WPSD to the forked version that supports M17.
The Random Wire

Opulent Voice Conference Server
Test plan & user guide.
Open Research Institute

Decoding Meshtastic with GNURadio on a Raspberry Pi
A portable display using a Raspberry Pi 5.
Jeff Geerling

30 Meter Delta Loop
Although it’s simple, it is worth an article.
VE3VN

It’s more than just the tech: Lessons learned in funding R&D
R&D projects had the greatest number of uncertain outcomes compared to other categories.
ARDC

Gray line: The Twilight Zone of radio propagation
Welcome to the weird and wonderful world of gray line propagation—also known as the magical twilight zone of HF radio.
OnAllBands

A lightweight M17 hotspot
A lightweight M17 hotspot based on the CC1200 and a Raspberry Pi.
RZ01.org

Video

If you build it, they will come
Let’s build a packet radio repeater including AX.25 networking, NET/ROM node services and a Winlink email server.
KM6LYW

Desert island Ham Radio – IOTA EU-179 activation
This video documents our 6-day expedition to a remote desert island in the Black Sea during IOTA Contest 2021.
Man with the Antenna