GPR-4-BT is a cute, easy to bring, ultra-high performance, low power GPS smart antenna and data logger with USB connector. In addition to wired connection, it also supports Bluetooth wireless communication. The built-in SiRFstarIII chip and our experienced design provide fast acquisitions and excellent tracking performance. It is a perfect navigation companion with Smart phone, PDA, Notebook PC, UMPC etc

It is also a passive tracking device which records place (latitude, longitude, height, velocity, date, and time) wherever it has been to. It could support data records of up to 130 thousands or about 90 days for logging interval of 1 minute.

A separate management tool, NaviLogManager, running on PC Windows could be used to change logging interval, retrieve logging data etc. NaviLogManager supports conversion of logging data into KML (Google Earth display), NMEA (GGA and RMC), and other formats.
In addition to a wired USB cable, the data could also be uploaded wirelessly using Bluetooth interface. However, wired and wireless working simultaneously is not allowed.
The logging data could also be used to show the place that a picture is taken via Google Earth.

 

Technical specifications:

 

- Receiver Performance Data:

• Receiver Type	20-channel, L1 frequency, C/A code
  Horizontal Position Accuracy	< 2.5m (Autonomous) < 2.0m (WAAS) (50% 24hr static, -130dBm)
  Velocity Accuracy	<0.01 m/s (speed) <0.01° (heading), (50%@30m/s)
  Time To First Fix Hot start Warm start Cold start	Autonomous <1sec <35sec <42sec (50% -130dBm)
  Sensitivity (Autonomous)	-142dBm (acquisition) -159dBm (tracking) (-142dBm 28dB-Hz with 4dB noise figure)
  Max. Update Rate	1Hz
  Max. Altitude	<18,000 m
  Max. Velocity	<1,852 km/hr
  Protocol Support	NMEA v3.00, 4800bps N,8,1; GGA, GSA, GSV, RMC, VTG
  Datum	WGS-84
  SBAS Support	WAAS, EGNOS (optional)
  Dynamics	<4g

 

- Bluetooth data:

• Version 2.0	Downward compatible with ver.1.0/1.1/1.2
  Class 2	Communication range: Up to 10 m
  Profile	SPP (Serial Port Profile)

 

- Electrical data:

• Power Supply	5 VDC
  Power Consumption	75mA/average tracking, communicating via Bluetooth interface

- Environmental data:

• Operating temperature Storage temperature

  -20 ~ 60℃

- Mechanical data:

• Dimension

  21 x 72 x 13.5 (mm) including USB cap