The LTE‑Lite 10 MHz GPSDO module is an ultra‑small, low‑cost timing solution providing <8 ns RMS 1 PPS accuracy when GPS‑locked. It maintains holdover stability under ±50 µs over three hours at 25°C with no motion or airflow. The module outputs 1 PPS via 3.3 V CMOS and supports TTL‑level NMEA at 1 or 5 Hz. Operating on the L1 1574 MHz band, it works with active or passive antennas offering 0 to +30 dB gain and uses a 65‑channel GPS receiver supporting QZSS and SBAS systems. Sensitivity reaches –148 dBm for acquisition and –165 dBm for tracking, with fast TTFF under 32 seconds cold and 1 second warm or hot. ADEV performance is <7E‑11 at 10 s and <2E‑12 at 10 ks, with a TTL GPS lock indicator.

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