Re: [Discuss-gnuradio] gnuradio applications on UHD

2011-05-23 Thread Tom Rondeau
On Sun, May 22, 2011 at 4:24 AM, open bts obts94...@hotmail.com wrote: Has anyone ported the example applications such as hf_radio to the UHD interface? It looks like the hf_radio code already has the USRP-specific code isolated out so that it shouldn't be too difficult (although I'm still

Re: [Discuss-gnuradio] Store data with usrp_spectrum_sense.py

2011-05-23 Thread Tom Rondeau
On Sat, May 21, 2011 at 7:04 PM, Miguel Angel Sanz Rodriguez mikys...@hotmail.com wrote: Hi everyone, I am new in GNUradio and I want to sense the spectrum of Wifi from 2.4G to 2.5 G with a USRP. I have been reading through a lot of discussions in the forum but I have not been able to

[Discuss-gnuradio] Synchronize host and USRP N210

2011-05-23 Thread Bastien Auneau
Hi Everyone Here are several questions related to USRP N210 1. Considering USRP N210 with GPSDO. Is it possible to use the PPS in of the USRP as PPS out ? Can I just put in contact all 3 pins with the jumper j510 ? Will the PPS still be good enough once split ? I'm interested in this to keep the

Re: [Discuss-gnuradio] UCLA Zigbee PHY examples updated for UHD

2011-05-23 Thread Kresimir Dabcevic
Thanks for the reply Josh. However, I'm confused by all the frequency setting/tuning functions at our disposition. In my example, 1)I am setting cordic-freq (set by parser) while calling the main program, e.g. -c 245000 -that's the frequency I want to set my USRP to. 2)output of

Re: [Discuss-gnuradio] QAM demod Error in GRC

2011-05-23 Thread Vlad Stoianovici
Dear Marcus and Bob, I did understand that the block was hollow, but this thread is kindda old, so I thought that in the mean time maybe someone implemented the code and functionality you are referring to. I'm using GRC, but I don't have time to start learning python with the sole purpose of

Re: [Discuss-gnuradio] A few words on development

2011-05-23 Thread Tom Rondeau
On Fri, May 20, 2011 at 12:32 PM, Michael Dickens m...@alum.mit.edu wrote: On May 17, 2011, at 5:39 PM, Tom Rondeau wrote: What I'm now seeing, and this where the recent UHD apps comes in, is that there we really have a lack of developers. What it seems to come down to is a lack of

[Discuss-gnuradio] HINT: You can also track the movement of an volcanic ash cloud using USRP

2011-05-23 Thread Patrik Tast
An GR application note, This aint ment to be a commercial advertise, just FYI what you also can do with a USRPx We're tracking the volcanic ash cloud movement from Island, Grimsvotn using USRP + TVRX, 137 MHz and 1.7 GHz (downconverter), 4km and 1km pixel resolution. Air traffic from

Re: [Discuss-gnuradio] UCLA Zigbee PHY examples updated for UHD

2011-05-23 Thread Kresimir Dabcevic
update: turns out the problem was power squelch block - connecting self.u directly to self.packet_receiver did the trick... -Original Message- From: Kresimir Dabcevic Sent: Mon 5/23/2011 12:03 PM To: j...@joshknows.com; discuss-gnuradio@gnu.org Subject: RE: [Discuss-gnuradio] UCLA

Re: [Discuss-gnuradio] QAM demod Error in GRC

2011-05-23 Thread Josh Blum
On 05/23/2011 03:29 AM, Vlad Stoianovici wrote: Dear Marcus and Bob, I did understand that the block was hollow, but this thread is kindda old, so I thought that in the mean time maybe someone implemented the code and functionality you are referring to. I'm using GRC, but I don't have

Re: [Discuss-gnuradio] UCLA Zigbee PHY examples updated for UHD

2011-05-23 Thread Josh Blum
However, I'm confused by all the frequency setting/tuning functions at our disposition. In my example, 1)I am setting cordic-freq (set by parser) while calling the main program, e.g. -c 245000 -that's the frequency I want to set my USRP to. OK, I guess everything is fine. As a matter

[Discuss-gnuradio] Non SDHC Card Availability for USRP2s

2011-05-23 Thread Brett L. Trotter
I discovered today that almost no big retailer (newegg, bestbuy, etc) except amazon appears to sell 1 GB SD cards any more and 2GB cards are probably going to be headed that way sooner or later. 2GB cards, while also overkill on the USRPs, are riskier to buy since some may be SDHC. What's the

Re: [Discuss-gnuradio] Non SDHC Card Availability for USRP2s

2011-05-23 Thread Matt Ettus
On 05/23/2011 10:54 AM, Brett L. Trotter wrote: I discovered today that almost no big retailer (newegg, bestbuy, etc) except amazon appears to sell 1 GB SD cards any more and 2GB cards are probably going to be headed that way sooner or later. 2GB cards, while also overkill on the USRPs, are

Re: [Discuss-gnuradio] How exactly dose rx_callback work in benchmark script?

2011-05-23 Thread Kunal Kandekar
You need to follow the code into the other modules that are imported by benchmark_rx.py. The rx_callback function is passed as an argument to the constructor of my_top_block, which in turn passes it to the constructor of usrp_receive_path (in usrp_receive_path.py). In usrp_receive_path, the

[Discuss-gnuradio] To implement WiMAX with GnuRadio or not?

2011-05-23 Thread Alexander Chemeris
Hi community, Our WiMAX Scanner project (http://code.google.com/p/wimax-scanner/) approaches the moment when we should start writing C/C++ code - our Matlab model decodes broadcast messages from all recordings we have on hands. At this point we have to make a choice - rely on GnuRadio or create

Re: [Discuss-gnuradio] QAM demod Error in GRC

2011-05-23 Thread Ben Reynwar
On Mon, May 23, 2011 at 12:09 PM, Josh Blum j...@joshknows.com wrote: On 05/23/2011 03:29 AM, Vlad Stoianovici wrote: Dear Marcus and Bob, I did understand that the block was hollow, but this thread is kindda old, so I thought that in the mean time maybe someone implemented the code and

[Discuss-gnuradio] About gr_buffer_add_reader

2011-05-23 Thread Eddie Sun
Hi list, I have a USRP N210, running on Ubuntu-10.04, when I try to use the Gnuradio-Companion to make a fm_receiver, I success generate the python code, but when i try to run it, it shows --- terminate called after