Re: [Discuss-gnuradio] UHD stream tagging

You can also do precisely timed burst to stream conversion in
pure-software which is a bit more portable
For one example of how to do this using gr-eventstream tools see the
transmitter in
https://github.com/osh/gr-bitcoin
-Tim

On 02/08/2014 02:37 PM, Price, Nathan D. (S&T-Student) wrote:
> Hello,
>
> I'm working on project in gnuradio, in which I'm trying to toggle on and off the transmission from the USRP. After much research, I learned this was done by tagging the first sample of a transmission with "tx_sob" and the last sample with "tx_eob" (there was also a "tx_time" tag, but I found the former option more convenient). I wrote a custom block that periodically tags segments out of continuous stream of data as a proof of concept; however, the transmission remains continuous as if there were no tag. I've checked with the tag debugging block to ensure my block acutally generates tags. My flow graph is simply: file source(repeat)->custom tagging block->psk mod->multiply const->uhd sink.
>
> Reading in the archive, I haven't found reference to success much success with the streaming API. I would love the community's input on this problem.
>
> Thanks,
> Nathan
>
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