The H-8123-U8 GPS OEM module data sheet provides specifications, performance parameters, interfaces, and environmental limits.
The H-8123-U8 GPS OEM module is built around a U‑BLOX M8030 chip and supports multiple GNSS constellations including GPS L1, GLONASS L1OF, Galileo E1B/C1 and BeiDou B1. It features an integrated TCXO, a 20 dB low‑noise amplifier, low‑loss filter, and built‑in ESD protection for the antenna connector.
The datasheet details electrical characteristics such as a 3.3 V–5.5 V supply range, 55 mA typical current consumption, tracking sensitivity down to –160 dBm, and UART data rates of 9600 bps (optional 4800/38400 bps). Mechanical information includes a 25 × 28 × 7.5 mm package with a built‑in 25 × 25 × 2 mm passive ceramic antenna and optional 4 mm antenna. This manual is written in Chinese.
| Main chip | U‑BLOX M8030 |
|---|---|
| Operating temperature | -40 °C to +85 °C |
| Typical current consumption | ≈55 mA |
| Tracking sensitivity | -160 dBm |
| Standard clock pulse range | 0.25 Hz ~ 10 MHz |
| Position accuracy (autonomous) | <2.5 m |
| Update rate | 1 Hz ~ 5 Hz |
| Package dimensions | 25.0 × 28.0 × 7.5 mm |
| Cold start time | ≈30 s (average) |
| UART data rate | 9600 bps (optional 4800, 38400 bps) |
The module includes a built‑in 25 × 25 × 2 mm passive ceramic antenna, with an optional 4 mm ceramic antenna.
The cold start time is about 30 seconds on average.