[Hackrf-dev] how to set IF in GNU Radio for HackRF

mourad ghafiri mourad.ghafiri at gmail.com
Thu Nov 19 16:49:07 EST 2015


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 <supersat at cs.washington.edu>
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 <mourad.ghafiri at gmail.com>
> 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 <supersat at cs.washington.edu
>> > wrote:
>>
>>> How are you recording the samples?
>>>
>>> On Thu, Nov 19, 2015 at 1:05 PM, mourad ghafiri <
>>> mourad.ghafiri at gmail.com> 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
>>>> HackRF-dev at greatscottgadgets.com
>>>> https://pairlist9.pair.net/mailman/listinfo/hackrf-dev
>>>>
>>>>
>>>
>>
>
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