GlobalSat’s BU-353S4 and BR-355S4 GPS receivers are designed based on SiRF STAR IV chip, featuring low power consumption and high sensitivity, with good positioning performance, and are suitable for Windows, MacOS, Linux, and Android.
| GPS Chipset | SiRF STAR IV GSD4e |
|---|---|
| Frequency | L1, 1575.42 MHZ |
| C/A Code | 1.023 MHz chip rate |
| Channels | 48 |
| Sensitivity | -163dBm |
| Position Horizontal | <2.5m 2D RMS SBAS Enable |
| Velocity | 0.1m/sec 95% (SA off) |
| Time | 1 micro-second synchronized to GPS time |
| WAAS | Enabled for North America product s (USGlobalSat, Inc) |
| Datum | WGS-84 |
| Acquisition Rate | Hot start: 8 sec., average (with ephemeris and almanac valid) |
| Protocol | Default: NMEA 0183 (Secondary: SiRF binary) |
| Output Data | NMEA 0183 MEA0183 V3.0 protocol, and supports command: GGA, GSA, GSV, RMC, VTG, GLL v2.2 (VTG and GLL are optional) |
| GPS transfer rate | Software command setting (Default : 4800,n,8,1 for NMEA ) |
| Dynamic Condition | Acceleration Limit: Less than 4g |
| Temperature | Operating: -40°~ 80°C |
| Power | Voltage: 5V ±5% |
| Physical Characteristics | BU-353S4: Dimension: 59*47*21mm |
| Low Noise Amp | Amplifier Gain w/out cable: 27 dB Typical |
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