On 06/29/2013 09:14 AM, Karan Talasila wrote: > ---------- Forwarded message ---------- > From: Karan Talasila <karan....@gmail.com> > Date: Sat, Jun 29, 2013 at 6:44 PM > Subject: Re: [Discuss-gnuradio] Problem in uhd_fft > To: "j...@joshknows.com" <j...@joshknows.com> > > > Hi Josh, > I am using USRP 1. I am using a sma-bulkhead cable from Tx_A > of basic tx daughter board and similarly a sma-bulkhead cable from Rx_A > terminal of the Basic Rx daughter board. and then i am connecting a sma-sma > cable from usrp transmitter to a coupler on powerline cable. Similarly I am > connecting a sma-sma cable from usrp receiver to another coupler on the > powerline cable. > > so in all I am using 2 usrp 1, 2 sma-sma cables, 2 sma-bulkhead cable and > two couplers. Please let me know if i am not clear with the description. > Thank you. >
Seems to work OK for me. I used a single USRP1, BasicRX, BasicTX. RXA is connected to TXA and RXB is connected to TXB. Attached is a GRC flow graph. Hope that helps. -josh > > On Sat, Jun 29, 2013 at 11:24 AM, Josh Blum <j...@joshknows.com> wrote: > >> >> >> On 06/27/2013 09:44 AM, Karan Talasila wrote: >>> Hi, >>> I am using a basic tx and basic rx daughterboard for transmission >> and >>> reception. The spec says basic tx and basic rx run from 0 to 250 MHz. But >>> when i run transmitter and check the uhd_fft at receiver, after 32 Mhz, >>> there is no signal. If i set the transmitter frequency in my flowgraph as >>> 33 MHz, I don't get a signal at 33 Mhz, But when i enter frequency as >>> -31Mhz in the uhd_fft i get a received signal on my fft. why does this >>> happen? If it's in the range of daughter board it should be receiving it >> at >>> that particular frequency right. >>> >>> >> >> Can you tell me more about the cabling setup? Which ports of the Basic >> TX and RX are you using, and how are they connected via SMA cable? >> >> -josh >> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> Discuss-gnuradio@gnu.org >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >
usrp_loop_basics.grc
Description: application/gnuradio-grc
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