Eleduino Gmouse Ublox GPS USB Dongle Locator for Stratux Receiver Amateur Radio Raspberry Pi 3 The Gmouse GPS Usb Dongle Support Windows 10/8/7/Vista/XP WIN CE /Linux Industry standard 18 * 18 * 2MM high sensitivity GPS antenna Using KDS 0.5PPM high-precision TCXO Supports positioning PPS LED: flashes after a successful positioning. Supports AssistNow Online and AssistNow Offline A-GPS service, etc.