GD-2501 USB GPS Receiver Key Features:

• Skytraq Venus 6 High Performance GPS receiver chipset
• Acquire and track 65 satellites simultaneously
• Low Power Consumption
• Built-in highly sensitive antenna picks up even the weakest signals
• WAAS, EGNOS enabled for accurate position fix
• Backup battery for faster position fix
• A-GPS enabled for faster startup time 
• Waterproof to IPX6 standards
• Magnetic base
• Windows XP/Vista/7, Linux and Mac OSX drivers included (Windows ce available)
• Compatible with any GPS mapping or navigation software on the market that complies with NMEA standards
• GPS monitoring software included (Windows only)

 
 
GD-2501 GPS Receiver Specifications: 
   GPS solution:  SkyTraq Venus 6
   Receiver type: 65-channel, L1 frequency, C/A code
   Max altitude: < 18,000 m
   Max velocity: < 515 m/s
   Accuracy:  
      Position 2.5 m CEP
      Velocity 0.1 m/s
      Time 250 ns
   Startup Time :
      Hot start < 1 s
      Cold start < 35 s
   Sensitivity: 
      Acquisition -148 dBm
      Tracking -161 dBm
   A-GPS: PromptFixR AGPS
   Datum: WGS-84
   Dynamics: 4G
   Protocol: NMEA-0183 9600 baud, 8, N, 1
GPS antenna: 18.0 x 18.0 x 4.0 mm patch
Electrical Characteristics: 
   Interface  USB 1.0/2.0
   Power supply  5.0 V ± 0.5 %
   Power Consumption  ~ 45 mA
Mechanical Characteristics: 
   Dimension 38.0 x 4 0.5 x 12.3 mm
   Cable Length  180 cm, Type A connecter
Environmental Characteristics: 
   Operating temperature -40 °C ~ +80 °C
   Storage temperature -40 °C ~ +85 °C
   Humidity 5 % ~ 95 %
   Waterproof IPX6 Waterproof Standard

Done