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Card 519 of 9842026-09-11 issue

Observed arrival · 2026-09-11

Mjcro echo: an open-hardware LoRa radio

mjcro.com Observed source
Editorial interest 84/100 Selection signal · not a rating of the site

A Swiss-made family of compact LoRa radios that presents end-to-end encryption, open build files, and an option to buy assembled hardware.

Landing page captured for the 2026-09-11 issue.

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.

○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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mjcro.com

Landing page observed 2026-09-11. The live site may have changed.