Re: [Discuss-gnuradio] Report an error: stable/main/source/Sources does not exit. Unable to update GNU.

2009-07-14 Thread Johnathan Corgan
On Mon, Jul 13, 2009 at 22:41, Milo Wong wrote: > Failed to fetch http://gnuradio.org/ubuntu/dists/stable/main/source/Sources > 404 Not Found > Some index files failed to download, they have been ignored, or old ones > used instead. We're working on a reorganization of the binary and source packa

Re: [Discuss-gnuradio] Max temperature for usrp2

2009-07-14 Thread Matt Ettus
Eric Matlis wrote: Hi all- I'm about to conduct some measurements on a running GE aircraft jet engine with the USRP2. The test cell temps could reach 150 F. Is that going to fry my USRP? We haven't done any testing at those temperatures (about 66 C), but it is within the temperature specs

Re: [Discuss-gnuradio] Max temperature for usrp2

2009-07-14 Thread Matt Ettus
Jordan J Riggs wrote: The brute-force method to answering your question is probably to look at the operating temperature ranges in the datasheets for the major cmoponents. A few things come to mind: the SD card (one of the cheaper components, I suspect), the ethernet cable, and the resistors. T

Re: [Discuss-gnuradio] using the USRP cpp interface

2009-07-14 Thread Eric Blossom
On Mon, Jul 13, 2009 at 08:33:13PM -0400, Timur Alperovich wrote: > Hi there, > > I tried recording the GSM broadacast data using the > test_usrp_standard_rx code, but plotting it in Matlab does not look > right at all. The exact command I used was: ./test_usrp_standard_rx -F > 197620 -o /home

[Discuss-gnuradio] gr_mpsk_receiver_cc.cc question

2009-07-14 Thread Peng Huo
Hi, Is it possible to split this block into two different ones. Can I do a costas loop block followed by a clock recovery instead of this? Thanks, Peng ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discu

Re: [Discuss-gnuradio] gr_mpsk_receiver_cc.cc question

2009-07-14 Thread Johnathan Corgan
On Tue, Jul 14, 2009 at 12:48, Peng Huo wrote: > Is it possible to split this block into two different ones. Can I do a > costas loop block followed by a clock recovery instead of this? Yes, these already exist. See the digital-bert example for a flowgraph that does BPSK demodulation using them.

Re: [Discuss-gnuradio] blks2.mod, blks2.demod

2009-07-14 Thread Eric Blossom
On Mon, Jul 13, 2009 at 02:32:57PM -0700, udadidd wrote: > > I was trying to understand benchmark_tx and benchmark_rx files. I see > blks2.mod_pkts being used. and blks2 being imported from gnuradio > 1) if i call "from gnuradio import blks2", where exactly are these files > called from? > 2) i do

[Discuss-gnuradio] DBPSK Modulation

2009-07-14 Thread Muhammad Abrar
i want to do DBPSK modulation on 16 KHz Carrier, but didi not fine any option to set carrier frequency in DBPSK block in GRC or in dbpsk.py. Please guide me. second question where modulation_utilites and psk are preent as we import them like from gnuradio import modulation_utilities import psk T

Re: [Discuss-gnuradio] DBPSK Modulation

2009-07-14 Thread Colby Boyer
There should be an example in blk2impl directory. On Tue, Jul 14, 2009 at 5:16 PM, Muhammad Abrar wrote: > > > i want to do DBPSK modulation on 16 KHz Carrier, but didi not fine any > option to set carrier frequency in DBPSK block in GRC or in dbpsk.py. Please > guide me. > > second question wher

[Discuss-gnuradio] GNU Radio release 3.2.2 available for download

2009-07-14 Thread Johnathan Corgan
GNU Radio version 3.2.2 has been released. This release contains important bug fixes. In particular, the broken examples in the digital example directory have been fixed, and the missing files from the binary packages have been restored. Source distribution tarballs: ftp://ftp.gnu.org/gnu/gnura