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25 Sep, 2026
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Tag: disasters

The Days Of Broadcast Digital TV Could Be Numbered

2026-08-262026-08-26 Danie
Old television partially submerged in muddy floodwater with a faint reflection of a person and electrical wires.

“When the analogue TV signals were turned off in most places around fifteen years ago, their replacement took the form of a set of digital multiplexes. ATSC for North America, and DVB-T for Europe and […]

Blogdisasters, radio, technology

MeshCore Radio for Social Networking and Disasters with zero Internet required

2026-07-242026-07-24 Danie
Flyer for Western Cape Hamnet Meshcore Tech Talk on 23 July 2026 at 19:30 SAST, hosted by Danie ZS1OSS via Zoom.

The Boland Amateur Radio Club (BARC) invited me to do this talk on 23 July 2026. HAMNET Emergency Communications provided the Zoom platform. The audience consisted of radio amateurs, citizens, and disaster management. MeshCore is […]

Blogdisasters, meshcore, opensource, southafrica, technology

Jack Dorsey’s Bitchat App Sees Downloads Spike in Uganda Over Internet Shutdown Worries

2026-01-092026-01-09 Danie
Text-based interface showing options for decentralized messaging, including offline chat, online geohash channels, and encryption settings.

“Recently, the app drew attention during Nepal’s Gen Z protests, where it supported protesters in overthrowing the government. On September 4, authorities banned 26 platforms, including Facebook, X, YouTube, and Signal, to curb demonstrations against […]

Blogdecentralised, disasters, opensource, protests, technology

Disaster alert accounts are preparing for a world after Twitter, due to the API limitations imposed

2023-04-212023-04-21 Danie
House with lots of debris surrounding it, with a man in foreground taking a photo on a mobile phone

For years, Twitter has been a go-to for agencies that need to warn people during a rapidly changing crisis. The National Weather Service uses it to share hurricane and tornado alerts. Firefighting agencies tweet updates […]

Blogalerts, disasters, technology, twitter

AM Radio is already being phased out of some new vehicles, and that is very bad for Emergency Broadcasts and Disaster Management

2023-03-112023-03-11 Danie
Old fashioned looking portable radio receiver with antenna extended, and a solar panel on top

According to Markey, AM radio operates at lower frequencies and longer wavelengths, enabling it to pass through solid objects and travel further than other radio waves — a feature not shared by FM broadcasts. As […]

Blogcommunications, disasters, emergencies, radio, technology

How to run a Winlink RMS Gateway in VHF Packet mode as stand alone Radio-only

2022-09-302022-09-30 Danie
Winlink

Default Winlink RMS Gateways using 2m Packet radio REJECT all messages if the Internet is down! I thought I’d do a webpage about this specifically as most articles seem to deal with automatic fallback on […]

Blogamateurradio, disasters, hamradio, technology, winlink

6 Apps To Chat And Text With No Internet Connection Via Mesh Network – It’s too LATE to download apps after a disaster happens

2022-09-212022-09-21 Danie
mesh network

These apps are known as ‘Off-the-grid’ chat messenger app that works even without internet connection or 2G, 3G, or 4G network coverage, somewhat like the Walkie-Talkie app for iOS and Android. These apps allow you […]

Blogdisasters, meshnetworks, mobile, P2P, technology
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