I am doing an OFDM transmission with tx_ofdm.grc and receiving it with rx_ofdm.grc. I am using two USRP N210s for this.
I edited the tx_ofdm to set the transmission rate to generate 96-byted packets every 10ms via : message strobe-> random pdu generator->pdu to tagged stream.
However, now I am seeing an underflow ('U') which I think is because my application isn't sending data fast enough to the USRP. The USRP sampling rate is 512K.
Could you please let me know how I might be able to fix this?
Thanks!
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Avinash