hello all
i have a question about the difference between uhd_sink+uhd_source with virtual_sink+virtual_source
the accessory is the grc file i am running.
in this grc when i use virtual_sink+virtual_source,the ber is zero ,in other words,the sorce file is same with the dest file
but when i use uhd_sink+uhd_source, and i connect the B200's tx and rx port with a RF wire. but the ber is not zero.
i want to konw what is the difference ,and how can i use uhd_sink+uh_source just like virtual_sink+virtual_source
--Ekko
ber_simulation.grc