extract "pure" IQ from source code

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mamdo
Posts: 4
Joined: Mon Jul 06, 2020 1:06 pm

extract "pure" IQ from source code

Post by mamdo » Thu Oct 01, 2020 2:32 pm

sorry for this noob question.

i'm using the Pluto sdr command " iio_writedev -u ip:192.168.2.1 cf-ad9361-dds-core-lpc " to pass any IQ to pluto.
and i'm want to pass IQ from "portsdown / rpidatv" code " after all operation encoding H264 and modulation QPSK ..." to Pluto.

so i'm just want where is the exactly point i can put my code to take IQ from "portsdown / rpidatv" code and transfer it to Pluto.

G8GKQ
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Posts: 2928
Joined: Sun Mar 22, 2009 1:21 pm

Re: extract "pure" IQ from source code

Post by G8GKQ » Fri Oct 02, 2020 9:56 am

Hi @mamdo (do you have real name [Abdo?])

Not a noobs question at all.

The raw IQ values are computed within limesdr_dvb.cpp and are not exposed outside that program. You might try using the older dvbs2iq program that is also included in the source. I stopped using that because of difficulties with buffer management.

Dave

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