Direct ADC (BB_DIRECT_RF) Mode ?

[jhenderson]

Hello,

I am targeting sample acquisition from my BB60C (or D) in the HF frequency ranges 0 – 20 MHz. I have the “typical” stream IQ mode working, but I wanted to see how the output compared to using the Direct RF flag that documentation hints at existing.

I’ve tried every combination of initializing things that I can think of, but I cannot avoid getting a SEGFAULT at the bbGetIQUnpacked/bbGetIQ call.

Something that’s missing from the documentation is a specific example of how that streaming type (BB_DIRECT_RF) is used.

I’m on Linux using api 5.0.9

• This topic was modified 5 months ago by jhenderson.

[jhenderson]

After working with what is available from you, it seems like there is a disconnect between the GetIQ call and the EngineIQDirect functionality.

I would guess that I need to call Get_32f but that is not publicly exposed? Any thoughts on this would be appreciated.

[Andrew]

I apologize for the issues and confusion. At this point BB_DIRECT_RF is deprecated. We now have the ability to stream I/Q data anywhere in the frequency range of the BB60 and exclusively recommend doing that.

I will update the documentation to reflect this.

Let us know if you have follow up questions.

[Author]

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