On Thu, Sep 1, 2011 at 4:39 PM, sumitstop <sumit.ku...@research.iiit.ac.in> wrote: > > I got a reply for this post by Nick Foster but its not showing here.Anyways I > am posting It here > > Nick answered --- "So, first of all, you're using an attenuator, right? You > can't transmit directly from one RFX2400 into another without the > possibility of damaging the receiving RFX2400." > > --n > ******************************************************************************* > Nick .... I connected them using SMA-SMA cables.Does this mean that I have > damaged them already ? > I thought these cables will provide the required attenuation. > > Anyways I have a general question.. > I have two basic Tx and Rx daughter boards. > say I put the Transmitter daughter board on side A of USRP.Now the > Transmitter daughter board has two ports TX-A and TX-B. What should I write > for the arguments while running benchmark_tx.py > Iis the following correct ............ > > Side A and TX-A ----> -T A:0 > Side A and TX-B ----> -T A:1 > Side B and TX-A ----> -T B:0 > Side B and TX-B ----> -T B:1
SMA cables have very little attenuation. Look at the table of cables at http://en.wikipedia.org/wiki/Coaxial_cable. You can see that cables are rated for a few dB of attenuation per 100 feet. You definitely need real attenuators in line with your cables in your setup. Tom _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
