This item is perfect for you if you need to add GPS functionality to your computer device. The GPS / Glonass USB Dongle for Vehicle Aviation Tracker is a portable GPS solution for tiny computers such as the Raspberry Pi. This device is not plugged and play, so you need to install the driver first to acquire the software needed to make the GPS dongle work. Moreover, since the ceramic antenna is not big enough, we would not suggest it indoors. 

Specifications:

• Supported operating systems: Windows 8/7/Vista/XP/CE
  
• VK-172 automatically adapts the baud rate; the baud rate has any data output
  
• Support Google Earth
  
• C / A code, 1.023MHz stream
  
• Receive Band: L1 [1575.42MHz]
  
• Tracking Channels: 56
  
• Support DGPS [WAAS, EGNOS, and MSAS]
  
• Positioning performance :
  
• 2D plane: 5m [average]
  
• 2D plane: 3.5m [average], has DGPS auxiliary.
  
• Drift: <0.02m / s
  
• Timing Accuracy: 1us
  
• Reference coordinate system: WGS-84
  
• Maximum altitude: 18,000 m
  
• Maximum speed: 500m / s
  
• Acceleration: <4g
  
• Electrical properties:
  
• Tracking sensitivity:-162dBm
  
• Acquisition sensitivity:-160dBm
  
• Cold Start Time: 29s [average]
  
• Warm start time: 28s [average]
  
• Hot start time: 1s [average]
  
• Recapture Time: 0.1s [average]
  
• Operating temperature:-30 to +80           

Documents:

• Windows Driver link
• Conversion calculation link