Re: [Discuss-gnuradio] AUTOMATIC START AND STOP FILE RECORDING

[Ernest Matey]

Hi,

I have a 1 PPS from GPS into I channel and then signal in Q channel.

I injected 1 PPS into  I-Channel of ADC of HackRF one.

I am only recording as a text file with a simple file sink flowgragh the two channel.

What do you advice.

Ernest

On Thu, Aug 25, 2016 at 2:13 PM, Kevin McQuiggin <address@hidden> wrote:

Hi Ernest:

Why not just record at the three stations continuously with accurate time stamps going into the files?  Then you can line up the three recordings easily using the time stamp values.  When the recordings start and stop won't matter.

Kevin

Sent from my iPad

> On Aug 24, 2016, at 10:07 PM, Ernest Matey <address@hidden> wrote:
>
> Hi all Expert,
>
> My project demands the recording of the same signal at different Stations. This recording will last for  3minutes.
>
> It is critical for me to start the recording simultaneously and synchronized to more than 100ms accuracy between the stations.
>
> The first option is to start the Flow graph simultaneously but I think it is best to rather automate the start of the FILE SINK for data writing whilst the flow graph is already running.   Manual brings uncertainties
>
> I wish to ask our experts how I can achieve this FILE SINK automation in GNUradio.
>
>
> Thank you for sharing your expertise
> Ernest

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