The power of the tone comes in to the spectrum analyzer at -55.6dBm
On Tue, Aug 3, 2010 at 12:04 PM, Matt Ettus <m...@ettus.com> wrote: > > > You are seeing uncompensated DC offset. What is the actual power of the > tone? > > Matt > > > On 08/03/2010 10:12 AM, George Nychis wrote: > >> I have a WBX, and I've noticed that no matter what I transmit, the WBX >> always introduces a very narrow (but full-power) tone at the center of >> my spectrum. When the transmitter is disabled, the tone is not present. >> >> This can be seen below, where I'm transmitting a stream of complex(0,0), >> yet it still transmits this tone in at the center (520MHz): >> spectrum.jpg >> >> Has anyone experienced this before with the WBX board? I've confirmed >> it's only my WBX board by using the same USRP2 board and trying my >> RFX2400 and XCVR2450 with the same transmit script and sample stream and >> neither see this problem. >> >> I am using the latest USRP2 firmware that includes the WBX support, and >> the newest GR git. It's possible that the board is defective in some >> way... but I thought I'd punt it to the list to see if anyone else has >> seen the issue. >> >> - George >> >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> > >
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