The RoyalTek REB-3571LPX GPS Module User Manual provides specifications, hardware/software interfaces, application circuits, and usage tips for the…
The REB-3571LPX is a low‑power, small‑form‑factor GPS module powered by a SiRF Star III chipset and RoyalTek's proprietary navigation technology. It is intended for automotive, personal, marine, and timing applications and supports NMEA‑0183 protocol with optional custom protocols.
The manual covers technical specifications, pin definitions, hardware and software interfaces, recommended layout and mechanical design, application circuit examples, power‑saving modes, and practical tips for achieving reliable positioning in various environments.
| Chipset | SiRF Star III, GSC3f/LPx |
|---|---|
| Frequency | L1 1575.42 MHz |
| Channels | 20 parallel |
| Sensitivity | -159 dBm |
| Cold start time | 35 s (open sky) |
| Warm start time | 35 s (open sky) |
| Hot start time | 1 s (open sky) |
| Reacquisition time | < 1 s |
| Position accuracy | 10 m (2‑D RMS) |
| Maximum altitude | 18 000 m |
| Maximum velocity | 514 m/s |
| Current consumption | ≤ 48 mA @ 3.3 V (no external antenna) |
| Operating temperature | -40 °C to 85 °C |
| Humidity | ≤ 95 % |
| Update rate | 1 Hz (continuous) |
The module provides 20 parallel channels.
It operates with a continuous update rate of 1 Hz.
Supply the module with 3.3 V DC (±5%).
The module can operate from –40 °C to 85 °C.