@David Brown I appreciate your interaction with that basic question, in fact we are recording a L1 GPS streaming for post processing in a Matlab project for GPS positioning... so all we need simply is a file that contain an int8 type record.
@Karl Koscher thank you so much, I will try this blocks Immediately and get back to you; if you still have time to complete this friendly (hackerfly :) ) conversation. On Thu, Nov 19, 2015 at 10:04 PM, Karl Koscher <[email protected]> wrote: > Use a Complex to Float/Real and Float to Char type converter block between > the HackRF source block and the file sink, and then change the file sync > type to char. Or you can use the hackrf_transfer program and avoid these > conversions altogether. > > On Thu, Nov 19, 2015 at 1:49 PM, mourad ghafiri <[email protected]> > wrote: > >> thank you for your quick answer, please how to record the streaming in >> int8 type >> >> Regards; >> >> On Thu, Nov 19, 2015 at 9:40 PM, Karl Koscher <[email protected] >> > wrote: >> >>> You are recording complex floats. The intermediate frequency is your >>> frequency of interest minus what the HackRF is tuned to. If your HackRF is >>> tuned to 1.575 GHz but you want to decode the GPS L1 signal, then your IF >>> is 420 kHz. >>> >>> On Thu, Nov 19, 2015 at 1:36 PM, mourad ghafiri < >>> [email protected]> wrote: >>> >>>> I attached the flow graph for the recording as well as a real time >>>> spectrum , I'm not sure what blocks to use or what parameters to set for >>>> this block in order to have the right streaming. >>>> thanks for showing interest to the question >>>> >>>> On Thu, Nov 19, 2015 at 9:16 PM, Karl Koscher < >>>> [email protected]> wrote: >>>> >>>>> How are you recording the samples? >>>>> >>>>> On Thu, Nov 19, 2015 at 1:05 PM, mourad ghafiri < >>>>> [email protected]> wrote: >>>>> >>>>>> Hello; >>>>>> >>>>>> please any help to figure out what is the Intermediate Frequency used >>>>>> for HackRF in Gnuradio... >>>>>> >>>>>> I'm recording a streaming file for GPS and I don't know what is the >>>>>> appropriate type ( int; float...) and what is the appropriate IF to use >>>>>> in >>>>>> order to process that streaming in Matlab. >>>>>> >>>>>> Best Regards; >>>>>> >>>>>> _______________________________________________ >>>>>> HackRF-dev mailing list >>>>>> [email protected] >>>>>> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev >>>>>> >>>>>> >>>>> >>>> >>> >> >
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