project under evaluation


The ADU-11e (Analog Digital Unit) is a HF logger with 8 channels and 128 kHz max. continuous sample rate (2048 Hz lowest).
The system has a single mainboard with all channels integrated and soldered GPS (GPS, Glonass, BeiDou, Galileo). The CPU can be a ARM quad core i.MX 64bit.

One of the design aims is to keep the system small and light weight for airborne applications.
The channel configuration shall be 2xE and 6xH sampled via AD7771 (Analog Devices)
3 H channels can be connected to a SHFT-02e or SHFT-03e and the other 3 H channels to a FGS-04e type fluxgate or coils like MFS-06e or MFS-07e ; GPS data will be written @0.1Hz for control.

  • < 5 W power consumption

  • ~ 64 Hz yaw, pitch, roll sampling for SHFT-02e, SHFT-03e and FGS-04e

  • 1 Hz high pass for CSEM

  • 800 Hz High pass for AMT

  • simultaneous recording of AMT & MT with dedicated sensors

  • continuous streaming of atss data for remote logging

The systems writes standard ats files as well as streamed double data atss (Matlab, Python/Julia NumPy array compatible with JSON data header)