The DAQ-A is an aerodynamic PPK data logger containing GNSS (GPS) and IMU position sensors,
with a user-accessible memory card for saving the data log. The DAQ-A-SD adds an integrated,
downwelling SPECTROMETER which records the changing ambient light spectrum (340 - 1010 nm)
to assist with calibrating Survey3 camera images. There is a USB port for power input, an
RGB LED status button and two Survey3 camera connection ports (power + signals).