The SG-289 manual explains setup, operation, charging, Bluetooth pairing and specifications for Dagama Navigation's Bluetooth GPS receiver and track recorder.
The SG-289 is a compact Bluetooth‑enabled GPS receiver with an LCD display, built‑in rechargeable lithium battery and SD/MMC card storage. It supports SiRF Star III GPS chipset, up to 20 satellite tracks, WAAS/EGNOS corrections and standard NMEA‑0183 and SiRF binary protocols.
The manual covers hardware dimensions, accessories, power‑up procedures, Bluetooth pairing, data recording settings, and troubleshooting. It also provides technical parameters, charging instructions, and a timezone table for proper time stamping of recorded data. This manual is written in Chinese.
| Frequency | L1 1575.42 MHz |
|---|---|
| Channels | 20 |
| Sensitivity | -159 dBm (typical) |
| Position accuracy (normal) | 5‑25 m |
| Vertical accuracy (WAAS/EGNOS) | <5 m |
| Horizontal accuracy (WAAS/EGNOS) | <2 m |
| Cold start time | 42 s (average) |
| Work current (normal mode) | 75 mA (average) |
| Battery life (continuous tracking) | 12 h |
| Dimensions | 93.1 mm × 45.7 mm × 22.8 mm |
A cold start takes about 42 seconds on average, while a hot start can be as fast as 1 second.
Turn on the host device’s Bluetooth, search for “SG‑289”, and use the default PIN “0000” to pair.