Hello, We've finally managed to get two N210 machines + GNU Radio up and running on Ubuntu. We can now transmit and receive data using the "UHD: USRP Source" and "UHD: USRP Sink" blocks. However, we cannot make a successful connection. Using a file source and file sink at either end, the result is always corrupted. The machines are connected to an external clock (10MHz). We have tried both with and without GMSK Modulation blocks, multiply constants, various gains, etc. Is there anything else we need to do? Please could some help us with making this simple transmission and reception. Regards, OGLES

On Tue, 2011-06-21 at 21:27 +0100, OG LESS wrote: > Hello, > > We've finally managed to get two N210 machines + GNU Radio up and > running on Ubuntu. We can now transmit and receive data using the > "UHD: USRP Source" and "UHD: USRP Sink" blocks. However, we cannot > make a successful connection. Using a file source and file sink at > either end, the result is always corrupted. > > The machines are connected to an external clock (10MHz). We have tried > both with and without GMSK Modulation blocks, multiply constants, > various gains, etc. Is there anything else we need to do? > > Please could some help us with making this simple transmission and > reception. You're going to have to give us a lot more information than that. What does your flowgraph look like? How are you handling packet encoding and decoding, frequency synchronization, clock recovery, etc? Can you attach your GRC file? --n > > Regards, > OGLES > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com