January 2019 Issue

WingBug ADAHRS: AoA, Data Recording

Think of the WingBug external ADAHRS pod as a movable secondary backup pitot static system. Third-party app interfaces could make it better.

Now the standard cabin connection protocol, Wi-Fi provides a more stable connection than Bluetooth. Plus, Wi-Fi is more tolerant of electromagnetic interference (EMI)-and there's plenty of it generated by charging systems and magnetos. But wireless connectivity is another challenge. The WingBug pod creates concurrent point-to-point Wi-Fi connections to multiple tablets or smartphones at once. But consider when multiple Wi-Fi devices like ADS-B receivers, satellite hotspots and action cameras are fighting to connect to the pilot's tablet in a point-to-point peer connection. In a peer-to-peer connection, only a single device may be connected to a tablet or smartphone, requiring the user to manually select the device (in Wi-Fi settings). A portable Wi-Fi access point provides the fix, but the devices and applications must be able to support access-point connectivity. Not all do.

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