BU-353N5 USB GPS Receiver with SiRF Star IV Chipset

The BU-353N5 is a compact, high-sensitivity USB GPS receiver powered by the SiRF Star IV chipset. Designed for reliable performance in challenging environments — including urban canyons and dense foliage — it delivers fast, accurate positioning for vehicles, laptops, and navigation software.

Key Features

• SiRF Star IV chipset — high-performance GPS processing
• Tracking sensitivity: -163 dBm for reliable signal in difficult conditions
• CGEE technology — predicts satellite positions up to 3 days ahead; CGEE start under 15 seconds without network assistance
• MicroPower mode — stays in hot-start condition while using minimal power
• Built-in patch antenna and magnetic mount — strong magnetic base for secure car roof mounting
• Waterproof base with non-slip surface
• LED indicator for GPS signal status
• Supports NMEA 0183 data protocol
• Built-in SuperCap for rapid satellite re-acquisition

Specifications

• Chipset: SiRF Star IV
• Frequency: L1 1575.42 MHz, C/A code 1.023 MHz
• Channels: 48-channel tracking
• Sensitivity: -163 dBm
• Location accuracy: 10m 2D RMS (5m with WAAS enabled)
• Velocity accuracy: 0.1 m/s
• Acquisition time: Hot start ~1 sec | Warm start ~38 sec | Cold start ~42 sec
• Interface: USB
• Output format: NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL
• Power input: 4.5V–6.5V DC | Power consumption: 80 mA
• Operating temperature: -40°C to +85°C
• Dimensions: 53mm diameter × 19.2mm height | Cable: 1.5m
• Weight: 0.11 kg