The Comway WG-8020 GPS+GPRS DTU User Manual provides an overview, technical specifications, and step‑by‑step instructions for GPS positioning, GPRS…
The WG‑8020 is a GPS + GPRS data transmission unit designed for vehicle‑mounted equipment, construction machinery, logistics tracking and personal positioning devices. It can acquire GPS location information and transmit it via GPRS, supporting multiple communication protocols.
The manual covers DTU basic technical parameters, GPS positioning specifications, GPRS data communication functions, clock synchronization, GPS data output configuration, and AT‑command usage for retrieving GPS data. It also explains data format conversion from degree‑minute to decimal degrees. This manual is written in Chinese.
| GSM/GPRS frequency bands | 900/1800 MHz |
|---|---|
| GPRS Multi‑slot Class | Class 10 |
| GPRS Terminal Device Class | Class B |
| SIM card count | 1 |
| Serial ports | 1 (RS‑232/485/422) |
| Baud rate range | 300 bps to 115.2 Kbps |
| Input voltage | 5 V to 24 V DC |
| Peak current | 2 A @ 5 V |
| Average working current | 150‑250 mA @ 5 V |
| Average standby current | 20 mA @ 5 V |
| Weight | 130 g |
| Dimensions | 108 × 65 × 26 mm |
| Operating temperature | -30 °C to 70 °C |
| GPS receiver channels | 50 channels |
| GPS L1 frequency | 1575.42 MHz |
| Positioning accuracy | 2.5 m |
| Maximum update rate | 4 Hz |
| GPS signal sensitivity | -160 dBm |
| Cold start time | 29 s |
| Warm start time | 29 s |
It supports the Comway protocol, a transparent protocol, and is compatible with Sang Rong and Hong Dian protocols.
The device operates from 5 V to 24 V DC, with a peak current of 2 A at 5 V, average working current of 150‑250 mA, and standby current of 20 mA.