I ran into a similar issue a few years back and wrote an updated file block
with some enhanced features. It's up on github here:
https://github.com/ghostop14/gr-filerepeater. Not sure if it's an exact
match for what you're looking to accomplish but you can specify delays
between replays and tie it into a mute block to "go silent". There's a
couple of example flowgraphs in the examples subdirectory. See if it helps.
On Sun, Jul 1, 2018 at 4:53 AM, Müller, Marcus (CEL)
wrote:
> Hi Linda,
>
> Do you mean "sending 0 in between" or do you mean "switch transmission
> on some SDR device on and off"?
>
> First case: multiply with a (threshold(sawtooth from signal source))
>
> Second case: see the gr-uhd examples on how to do bursty transmissions,
> if a USRP is what we're talking about!
>
> If possible, when asking the mailing list, give enough context so that
> we can unambigously understand what you're asking about!
>
> Best regards,
> Marcus Müller
>
>
> On Sat, 2018-06-30 at 10:44 -0400, Linda20071 wrote:
> > For some reason, I need to send out a sine wave for 1 second, wait
> > for 5 seconds, and finally send out another sine wave for another 1
> > second. Is it possible to make such a source in gnu radio directly,
> > based on the existing gnu radio blocks?
> >
> > Thanks in advance!
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