[Discuss-gnuradio] Selling my USRP1 with modified 52Mhz clock
Hi list, I am selling my USRP1 with following configuration: USRP1 with 52Mhz modified clock DBSRX1 2 small 0db gain antenna USB cable and power adapter Above items are working in excellent condition, they are not useful for me now thus may be useful for some one else Please contact me for price and delivery details Thanks ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] grc connection issue??
Hi list, I have a custom block trying to connect with other blocks in gnuradio like: for i in xrange(len(self.sources)): self.connect(self.src[i], self.filt[i], self.resampler[i], (self.finder, i)) number of connections should be equal to number of sources. All goes well, but it is executing only once, i.e. first block with : self.connect(self.src[0], self.filt[0], self.resampler[0], (self.finder, 0)) other one getting terminated once above connection terminates. Possible bug: my finder block looks for FCCH in input stream and if it does not find, will terminate, I suspect if it impacts on going connection of GRC. Presume: It should not be matter if first connection terminates, it should keep executing till last one GRC connections executes sequentially??? if yes, how can I achieve to execute all connections simultaneously please give me your thoughts Thank you in advance ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] spectrum record
Hi list, I want to record a 5MHz wide bandwidth with usrp1 (equipped with dbsrx1 and modified clock @ 52MHz), can anyone guide me how to do this, I am using usrp_rx_cfile (using gnuradio-3.4.2 for special purpose) with gain =52 decimation= 26 Please do let me know if I need to make any changes in any file to accomplish my task. Thanks in advance ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] spectrum record
Hi Marcus, list, Thanks for swift response. You are right about openBTS, but at the same time I am using really old system (12.04) havent formatted for years due to its required installation, which can turn into real time consuming tasks thats why dragging it as long as I can avoid above situation. Now Decimation, yes its seems right to me as well, but when I am trying to decode I am getting SCH errors (I am using channelizer.py given in GR example directory for this purpose) with following configuration channels= 10 sample rate= clock rate/decimation pfb decimation= 4 OSR= channels/pfb decimation= 2.5 but when I am recording single frequency with 156 decimation, it works just fine. partially I believe this question belongs to airprobe mailing list, but think there is very little or null development on it, thus thought to coin it here, a much active list. I want to make sure I am not doing anything wrong in spectrum recording and channelizing afterwards once it comes to airprobe, will give a head on Also if libusrp is the only bottelneck for me, I will change my system configuration and install GR-3.6 (which I think supports openBTS and UHD as well) at moment I am moving like headless chicken between GR and airprobe, not sure who is and what is going wrong, please spread some light here. Thankyou ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] number of taps in pfb filter??
hello list, when I am trying to channelize a baseband with following specs: sample rate: 2MHz bandwidth for low pass filter: 145kHz transition bandwidth: 10 kHz number of channels: 10 pfb decimation: 4 When I see number of channels is 91 taps/channel, but I think its too much, please guide me how to reduce taps/channel ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] unable to install gnuradio-3.4.2
Hi list, try to install older version of gnuradio (3.4.2 with gcc-4.4 on ubuntu 12.04) but after successful make, when trying make install, getting following errors: test -z /usr/local/lib/python2.7/dist-packages/gruel/pmt || /bin/mkdir -p /usr/local/lib/python2.7/dist-packages/gruel/pmt /usr/bin/install -c -m 644 pmt_swig.py '/usr/local/lib/python2.7/dist-packages/gruel/pmt' ../../../py-compile: Missing argument to --destdir. make[7]: *** [install-pmt_swig_pythonPYTHON] Error 1 tried on Google a lot but no luck, please point out whats going wrong here??? ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] spectrum chunk
dear list, I am digging to find out how to record a frequency bandwidth e.g. 1100-1125MHz; I already have USRP1 with DBRX, which I suppose able to capture 25MHz frequency bandwidth as per their specification. I played around ursp_rx_cfile but with single frequency, now I want to record a frequency spectrum then later wish to divide it into several frequency parts (which I presume can be done by channelizing, but any other idea most welcome). Taking above idea in my mind I am confused as if DDC of URSP (any combination of rbf files) is able to process this much data?? if yes, please guide me where to strike first?? is GRC good way to go ahead?? guidance is highly appreciated Thanks in advance ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] USRP1.dbrx, rfx-900/1800, wbx with modified clock for sale
Hi list, few months ago I bought USRP1 with DBRX, RFX-900/1800 WBX. but now I think I have no of it, I have already listed it on ebay http://cgi.ebay.in/ws/eBayISAPI.dll?ViewItemitem=230868173668ssPageName=ADME:L:LCA:IN:1123 if anybody interested, please contact me directly thanks ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
