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Custom firmware for Vaisala RS41 and Graw DFM-17 radiosondes with support for amateur radio use. Ideal for tracking high-altitude balloons. Supported modes include APRS, Horus 4FSK mode, CATS, morse code (CW) and additional digital modes like WSPR and FT8 via Si5351.
4FSK HorusBinary V1 and V2 compatible HAB tracker for SX127x and Arduino Pro mini
Arduino sketch for a High Altitude Balloon tracker for ESP32 and sx127x or RFM9x. Supports LoRa, LoRa-APRS, RTTY, Horus V1 4FSK, Horus V2 4FSK