APM 2.8 ArduCopter Mega Flight Controller with 8N GPS Compass and Power Module Compatible with F450 S500 Remote RC Drone and RC Airplane(with WiFi Module Set)

Compatible With APM V2.8.0 with compass description:
Compatible With APM V2.8.0 Flight Controller
Needle: staight
Power supply: Compatible With LP2985-3.3
Max voltage: 16V
Add a Compatible With 47uF tantalum capacitor
Port: Compatible With MUX (Compatible With UART0, Compatible With UART2, Compatible With mnnI2 and Compatible With OSD are optional, Compatible With OSD is the defaulted output)
Compatible With Jumper cap choose:
compass: plug the jumper cap in the Compatible With MAG pin header.
External compass: pull the jumper cap from the Compatible With MAG pin header.
Compatible With M8N GPS Built in Compass
A generation Compatible With GPS M8N,with low power consumption and , the ultimate accuracy is 0.6 meters, actually almost 0.9 meters, greater than the previous generation 7N 1.4-1.6 meters accuracy,support Compatible With GPS/For QZSS L1 C/A, Compatible With GLONASS L10F, Compatible With BeiDou B1 protocol and mode or more.
Compatible With GPS Chip parameters:
Receiver type 72-channel Compatible With u blox M8 engine
Compatible With GPS/For QZSS L1 C/A, Compatible With GLONASS L10F, Compatible With BeiDou B1
Compatible With SBAS L1 C/A: Compatible With WAAS, Compatible With EGNOS, Compatible With MSAS
Compatible With Galileo-ready E1B/C (Compatible With M8N)
Nav. update rate1 Single GNSS: to 18 Concurrent GNSS: to 10 Position accuracy2 2.0 m CEP
Sensitivity2 Tracking & Nav: –167 dBm
Cold starts: –148 dBm
Hot starts: –156 dBm
Assistance AssistNow Compatible With GNSS Online
AssistNow Compatible With GNSS Offline (to 35 days)3
AssistNow Autonomous (to 6 days)
Compatible With OMA Compatible With SUPL & Compatible With 3GPP compliant
Compatible With Oscillator Compatible With TCXO (Compatible With M8N/Q),
Crystal (Compatible With M8M)
Compatible With RTC crystal
Noise figure On-chip LNA (Compatible With M8M). E