Marcus! Thanks for you comment. I think that USRP transmit FIFO is at the start of the DSP chain in FPGA i.e it is prior to both of the interpolation filters? right? I am not talking about when the burst will be over the air, I want to know when the first sample of the burst will leave the transmit FIFO if it has been tagged as tx_time=X.
-- Bob On Wed, Jun 4, 2014 at 10:51 PM, Marcus Leech <mle...@ripnet.com> wrote: > It will depend some on the effective group delay of both the interpolation > filters in the the FPGA and the analog group delay of the analog bits of > whatever daughtercard you're using. > > The only way to be sure is to measure... > > > on Jun 04, 2014, *bob wole via USRP-users* <usrp-us...@lists.ettus.com> > wrote: > > I am using stream tags for the transmission control. I want to know what > is the accuracy/precision of the tx_time tag? E.g if I tag a burst A with > tx_time=X, then the burst A will come out of the USRP transmit FIFO at > X+delta, how large the value of delta could be? > > > -- > Bob > > ------------------------------ > > _______________________________________________ > USRP-users mailing list > usrp-us...@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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