On Wed, Jun 4, 2014 at 2:01 PM, bob wole <bnw...@gmail.com> wrote: > 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.
If you tag a burst with time X, that burst will be released from the device buffer at time X - assuming the burst arrives at the device before time X. After time X, there will be a sample rate dependent delay and a fixed analog group delay before the burst can be observed at the antenna output. In other words, a burst tagged to transmit at time X will leave the buffer at time X. -TT _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio