Re: [Discuss-gnuradio] Problems after upgrading to UHD with USRP2

Hi, The issue was the gain on the USRP2 UHD block in GRC was 0dB. I had to put it way up and then we got the signal again. Just curious however, With the previous USRP2 block(pre-UHD), 0 dB gain worked fine. Is there some change I'm not aware of? thanks, -sam On 10/25/2011 12:53 PM

[Discuss-gnuradio] Problems after upgrading to UHD with USRP2

minated all warnings that I was getting, to no avail. We're using USRP2s with the RFX2400 daughterboards. I'm attaching 2 GRC files as examples of what we're doing. I'm not getting any received signal. Any idea what I'm doing wrong. thanks, -Sam Keene simpleR

Re: [Discuss-gnuradio] Newbie question on USRP2, synchronization done by the FPGA?,

?, To: "Sam Keene" Cc: discuss-gnuradio@gnu.org Date: Wednesday, September 1, 2010, 9:03 PM On Wed, Sep 1, 2010 at 8:52 PM, Sam Keene wrote: Hi, Thanks for the reply. I guess I am just trying to better understand this diagram: http://www.linuxjournal.com/files/linuxjournal.com/li

Re: [Discuss-gnuradio] Newbie question on USRP2, synchronization done by the FPGA?,

Hi, Thanks for the reply. I guess I am just trying to better understand this diagram: http://www.linuxjournal.com/files/linuxjournal.com/linuxjournal/articles/073/7319/7319f3.inline.jpg I understand what the decimating filters are doing, but I'm a little unclear about the NCO. Does this compon

[Discuss-gnuradio] Newbie question on USRP2, synchronization done by the FPGA?

 Hi, Sorry if this is a simple question. I'm trying to figure out what synchronization is done by the FPGA on the USRP2. Does it perform both phase and freq synch? If I want to implement a simple digital modulation tx-rx, do I just need to do timing synchronization? Is there a simple example

Re: [Discuss-gnuradio] Problem updating firmware on SD card

dating firmware on SD card > To: "Sam Keene" > Cc: discuss-gnuradio@gnu.org > Date: Tuesday, July 13, 2010, 5:01 PM > If it helps to some degree, this is > what it is supposed to look like: > http://i.imgur.com/1ydNQ.png > You dont need to format the card, does it at leas

[Discuss-gnuradio] Problem updating firmware on SD card

path to the SD card in the Raw Device and clicked 'Burn SD Card'. However, this gave me various errors that there was not a file system: Error opening output file 1005. Do I need to format the SD card? I am hesitant to do so. Is there something I am doing wrong? Th

[Discuss-gnuradio] GNU radio in college courses

this before. thanks, -Sam Keene Assistant Professor The Cooper Union ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio