How It Works

Your balloon transmits WSPR telemetry which is picked up by amateur radio receivers around the world. Our service scrapes those spots, decodes the telemetry, and forwards it to tracking platforms automatically.

Your Balloon Tracker

Traquito / U4B

WSPR telemetry beacon

ZachTek

WSPR telemetry beacon

WSPR spots via amateur radio receivers

wspr.live

WSPR Spots Database

Scraper queries every ~10 min

WSPR Uploader

uploader.sp0lnd.pl

Decodes & forwards telemetry

Decoded position + telemetry

Tracking Platforms

Sondehub

amateur.sondehub.org

optional

APRS-IS

aprs.fi