Observed arrival · 2026-09-11
Mjcro echo: an open-hardware LoRa radio
A Swiss-made family of compact LoRa radios that presents end-to-end encryption, open build files, and an option to buy assembled hardware.
Field notes
The page describes echo as a half-duplex 868 MHz LoRa radio with push-to-talk, USB-C data and charging, open firmware, and a removable radio key. For the smallest model, it specifies a 3 × 6 × 1.5 cm form factor and nine parts, with an STL enclosure and Gerber board intended for self-assembly. A comparison table extends the concept across eight devices, including models with GPS, live maps, multiple radio bands, and claimed ranges up to 100 km+.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue