On Fri, Aug 20, 2010 at 2:52 AM, Amee Shah <amee...@gmail.com> wrote: > Hello all, > > Currently, I have the following hardware setup: > > Receive Antenna --> Preamplifier --> RF In (USRP2 + DBSRX) > > I was wondering if I could use USRP2 to supply power (12- 14V) to the > preamplifier? If yes, can someone tell me how? >
Are you trying to power via a DC bias on your feed line from preamp to DBSRX input? If so, you can use the built in bias-tee on J100. Since you are looking for higher than 6.3V, you will want to attach to J100 with your DC voltage between the "Antenna Bias +" terminal and the "GND" terminal of J100. If you were looking for a 12-14V source within the USRP2, there is only the 6.3V availble on the extra fan pins (J102 of USRP2) or on J101 of DBSRX. Have a look at the schematics here: http://code.ettus.com/redmine/ettus/projects/public/documents Jason _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
