Re: Help on creating an intermittent beacon transmission using HackRF

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On 07/02/2024 17:09, David Barnhart wrote:
> Hi all:   I teach a course at USC on satellite ground communications
> that is a lab-based class.
>
> I would like to setup an intermittent transmission using a recorded
> beacon that we have used before (in cfile format) to have them practice
> "catching signals" using lab Spectrum Analyzers and SDRSharp tools in
> the lab.  I can get the beacon transmitting continuously with its
> recorded waveform, however am not familiar enough to figure what block
> structure to use to only intermittently transmit this signal every 10 or
> 20 seconds.   Might there be some easy way to do this?  Am using osmocom
> to transmit via bench top HackRF in closed lab room, with a cfile recording.

Hi David,

One possible solution would be to make a flowgraph that plays the file
once. Then make a bash script that loops, calling the flowgraph and then
sleeping for some time.

Best,
Daniel.