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- Amplification gain: 28db
- Cable: RG174
- Cable length: 10 cm - ~ 4"
- Connector form; SMA
- Antenna size: 28 x 28 x 8.9 mm
- Operating frequency: GPS 1575.42MHZ
- Built in two stage low noise amplifier and filter design
- GPS, GLONASS, BEI DOU satellite signals can be received.
- GPS active antenna SMA plug
- Central frequency: 1575.42mhz-3mhz / 1575.42MHz + 3MHz 1595MHZ
- Low noise amplifier gain (without cable): 28dB
- Noise factor: < 1.5dB
- V.S.W.R: < 2
- DC current: 10mA maximum
- Operating temperature: -40 degrees C ~ +85
- Voltage: 3 ~ 5 VDC
Programming GPS and OpenStreetMap Applications with Java: The RealObject Application Framework
Written by an expert in developing GPS systems with digital maps and navigation, Programming GPS and OpenStreetMap Applications with Java: The RealObject Application Framework provides a concrete paradigm for object-oriented modeling and programming. It presents a thorough introduction to the use of available global positioning data for developing applications involving digital maps.
The author first describes the different formats of GPS data and digital maps and shows how to use recorded GPS traces to replay and display this data on a digital map. Then, he works through the processing steps of obtaining dedicated data from OpenStreetMaps and how to extract a network for a simple navigation application. For each topic covered―GPS data, OpenStreetMaps, and navigation―Java code is developed that can easily be adapted to the readers’ needs and locality.
Finally, all components are put together in a sample computer game application modeled on the well-known board game Scotland Yard. The computer game is intended to be a basis for readers to develop and customize their applications for their desired geographical area. The developed application can be "published" on the Internet and made available for interactive multiplayer competition.