On Wed, Nov 07, 2007 at 08:38:51AM -0800, Marko Simunac wrote: > Hi,
> I am using tunnel.py to transfer text files between two USRPs. It > only works when the two USRPs are almost right next to each other, > max distance is 5 inches, after that the ping fails and tunnel stops > working. I am using the Flex 400 daughterboards and am assigning a > carrier treshold of 90(-c 90) to get rid the BBBBBBs. Can someone > help me to increase the distance between the two USRPs, and > theoretically what is the max distance between the two USRPs that > tunnel can work? Not sure about the theoretical maximum, but as described in the README, I usually have them about 3 meters apart. What kind of antennas are you using? What data rate are you using? what modulation are you using? Try this: * start benchmark_tx.py on one machine * run usrp_fft.py on the other machine and confirm the the received spectrum looks reasonable. You'll want to experiment with the received gain setting. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
