I'm having trouble getting my USRP B210 to begin transmitting on a specified time using python. I have no trouble triggering acquisitions, but transmissions always start immediately.
I'm using the send_waveform function as follows:
usrp.send_waveform(data,duration, center_freq, sampling_rate,[0],gain,uhd.libpyuhd.types.time_spec(seconds_since_epoch))
seconds_since_epoch is unix time, which is what works properly with the receive command.
Any ideas?