
A few days ago was my first-ever successful DMR (digital mobile radio) activity (blog article). Today was my second — I participated in a World Wide Check-In. Continue reading “Second successful DMR activity”

Bluesky: @oppedahl.com

A few days ago was my first-ever successful DMR (digital mobile radio) activity (blog article). Today was my second — I participated in a World Wide Check-In. Continue reading “Second successful DMR activity”

(Update: my second-ever successful DMR activity was participation in the July 18, 2026 World Wide Check-In.)
It turns out that there is a thing called DMR or digital mobile radio (Wikipedia article). This is a thing that some radio amateurs do. To do DMR, you use a “hot spot” such as the one shown at right. It uses an antenna to transmit and receive on the 70-centimeter radio band, and it connects to the Internet via wifi.