All,
I am using an Ettus x310 over PCIe and am noticing that there is a delay from when my program finished sending to the radio and when the radio tells me that transmission as ended ( the red Tx light turning off). As I bump up the sample rate I notice this delay decreases until it is nonexistent. Is this intended behavior or have I done something wrong in my tests? The procedure to test this is listed below: 1. Download a copy of the official UHD example scripts from https://github.com/EttusResearch/uhd/tree/master/host/examples 2. Ensure that UHD is installed correctly on your testing device and build the example programs above 3. Run the following command “ ./tx_waveforms - -rate=1000000 - -freq=1500000000 4. Stop the program at any time (how long the radio is running does not affect the delay) 5. Observe the radio and notice that the red light under the Tx/Rx port is still lit on the RF A channel 6. If you start another transmission while the light is still red, the console output contains hundreds of thousands of L’s and the radio will not receive data until the USRP object is recreated. I am also curious if there is a hard stop functionality for this radio. All the examples I have seen send an End of Burst packet but is there a way to completely halt the radio without doing this? Thanks for the help! Andrew
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