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What is format of DAXIQ data?

AB4EJ
AB4EJ Member ✭✭
edited June 2020 in FLEX-6000 Signature Series
When I activate DAXIQ data on a slice, I understand per the wiki that the DAXIQ data is sent via UDP port 4991. However, I have not been able to find a low-level description of the format of the IQ data. Specific questions:
- how many IQ samples are in each buffer sent?
- what format are the IQ samples?  I & Q values, each 32-bit floating point (such as IEEE 754 single precision, or what?
- what is the endianess of the data? Do I have to rotate the bits or something to work with it in fftw?
Sorry if this is answered elsewhere, I have not found it so far.

Answers

  • Dan-N7HQ
    Dan-N7HQ FlexRadio Employee, Community Manager admin
    edited June 2020
  • AB4EJ
    AB4EJ Member ✭✭
    edited June 2020
  • Geoff AB6BT
    Geoff AB6BT Member ✭✭✭
    edited June 2020
  • AB4EJ
    AB4EJ Member ✭✭
    edited June 2020
    Geoff:  Thanks, it does help!  Quick question: have you run across an already coded data structure (C, C++ or C#) for the Signal Data Packet?  I can code it, but this could save some time...
  • Geoff AB6BT
    Geoff AB6BT Member ✭✭✭
    edited June 2020
    Hi Bill, no sorry I don't.
  • Dan-N7HQ
    Dan-N7HQ FlexRadio Employee, Community Manager admin
    edited June 2020

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