Hello @priyankap,
To answer your questions:
- Yes you can use the ini file and modify frequency and sample rate, thought that might be a little bit difficult as you would need to modify those variables in LimeSuiteGUI save it and load it through grc blocks.(Loading ini file through functions is not supported in gr-limesdr right now).
- You can not change the output format of LimeSuite Source (RX) block but you can use other gnuradio blocks such as Complex to IChar to have it changed to int8.
You can only use that “.conf” file to look at what parameters they are using, you cannot use the file without using gnss-sdr.
To store collected data in a file you can use flowgraph diagram such as this:
Keep in mind that “.ini” file is not required and you can set up sample rate, frequency gain etc. in the block itself.
To read more about gr-limesdr you can read the following : https://wiki.myriadrf.org/Gr-limesdr_Plugin_for_GNURadio