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Tag: hamradio

HAMgpt Launches as a Personal AI Copilot Built Specifically for Amateur Radio

2026-08-282026-08-28 Danie
A friendly robot with headphones promotes HAMGPT, an AI copilot for amateur radio, alongside radio gear, notebook, laptop, and coffee mug.

“Unlike a general-purpose chatbot, HAMgpt is built around the real operating situation of each ham. It can take into account the operator’s license class, country, grid square, radios, antennas and operating history, then combine that […]

BlogAI, amateurradio, hamradio, technology

FreeDV – Open Source HF Digital Voice for Amateur Radio

2025-11-152025-11-15 Danie
A digital signal processing interface displays a colorful waterfall spectrum analysis, illustrating audio frequencies in blue, green, and red.

“FreeDV is a suite of digital voice modes for HF radio. Our flagship mode is the Radio Autoencoder (RADE). You can run RADE using a free GUI application for Windows, Linux and OSX that allows […]

Blogamateurradio, hamradio, opensource, technology

Ham radio turns 100 in South Africa

2025-05-072025-05-07 Danie
A diverse group of rescue volunteers in uniforms, gathered outdoors for a briefing, with tents in the background and masks on.

“The South African Radio League (SARL) wants to broaden its contribution to the growth of amateur radio in sub-Saharan Africa as the organisation celebrates its centenary next month. Amateur radio, also known as ham radio, […]

Blogamateurradio, hamradio, SARL, southafrica, technology

Echolink not working on my computer but works on my phone (solution)

2025-02-192025-02-19 Danie
Echolink settings screen showing the relay settings that can be set.

EchoLink is a software application that allows licensed amateur radio operators to communicate with each other over the internet using Voice over IP (VoIP) technology. Many ham operators use Echolink to connect via their computer/phone […]

Blogamateurradio, echolink, hamradio, technology

HAMNET Emergency Coms at 99ER Cycle Tour 2025 in Cape Town

2025-02-082025-02-08 Danie
A group of cyclists racing down a wide, open road under a partly cloudy sky, with dry grass on either side.

HAMNET assists the 99ER Cycle Tour every year with emergency communications work. All our communications and tracking is done via radio, so no Internet or cellular communications are used. This covers the whole route from […]

Blog99ER, amateurradio, capetown, hamradio, technology

HamClock provides real time space weather, radio propagation models, and other info useful to radio amateurs

2024-12-172024-12-17 Danie
The image shows a global HamClock map, primarily focusing on the Southern Hemisphere. In the foreground, there is a detailed display of propagation data, including colours for different frequency bands. There are also smaller panes showing information for a local location as well as a DX location. Top left is a amateur radio call sign ZS1OSS visible.

This is a highly customisable application that draws in all sorts of technical information that can help radio amateurs. Each pane can be changed to show relevant information. What I really like is the frequency […]

Blogamateurradio, hamradio, technology

A Phone? A Ham Radio? Relax! It’s Both!

2024-10-162024-10-16 Danie
A hand holding a green coloured rectangle shaped circuit board, with a soldering iron tip poised over it.

A lot of hams like to carry a VHF radio. Of course, nearly everyone wants to carry a phone. Now, thanks to the kv4p HT, you don’t have to carry both. The open-source device connects […]

Blogamateurradio, hamradio, technology

CATS is a new comms and telemetry standard intended to surpass the current APRS standard by leveraging modern, super-cheap FSK transceivers

2024-03-152024-03-15 Danie
A white plastic case, lying open, with a green printed circuit board inside, with some wires protruding outwards and off the screen

It does make a lot of sense as the more modern digital modes we’ve seen over ham radio, achieve the same with less bandwidth required, more accurate transmission, and better weak signal support. It’s true […]

BlogAPRS, hamradio, opensource, technology

My web based OpenWebRx receiver has been upgraded to the Plus version with aircraft location data etc

2023-11-052023-11-05 Danie
Browser page showing title at top OpenWebRx with station name ZS1OSS Cape Town, South Africa. On the right side are buttons to toggle Status, Log, Receiver, Map, Files and Settings. The main screen is a waterfall display showing speckled blue and black colours. In the centre is a smaller window overlayed showing a map of Cape Town with an icon for a plane about 32 km North/ On the left side is a small box showing the plane's details with flight number, aircraft number, Squawk number, Distance, Altitude, speed and signal strength.

I featured my OpenWebRx receiver about a year or two back, which allows you to use any desktop or mobile browser, to be able to listen to various radio transmissions that are received at my […]

Blogcapetown, hamradio, planespotting, technology

Comparison of some hardware devices used for Ham Radio Digital Modes

2023-10-312023-10-31 Danie
A selection of ham radio hardware devices resting on a wooden table top. Shown are a Signalink USB with three dials on the front, a rectangular Mobinlinkd TNC about the size of a cigarette box, and a small DigiRig about the size of a 9V battery.

As I’m often having to choose how to use what digital mode on different radios that I have, it has meant also trying to understand which device works with which radio, and what modes it […]

Blogamateurradio, hamradio, technology

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