[Discuss-gnuradio] GRC: UHD USRP Source Block (complex - short)

Hi everybody, Very simple issue... I'm using GRC in order to save signal from N210 + WBX. No problems when I set the Output Type as "Complex" in the UHD:USRP Source block. The signal is properly saved as Complex float32. ..I'm a bit confused when I select "Short" as Output Type of the Source. I ex

[Discuss-gnuradio] gmsk on GRC

Hi all I am new on working with GRC. I am researching on gmsk modulators.I could not make a proper GRC model or example. anybody has a working example? thanks all Ahmad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mai

Re: [Discuss-gnuradio] gmsk on GRC

Hi Ahmad, please consider the amount of blocks coming with your gnuradio installation, usually found in your gnuradio directory, somewhere like gnuradio/grc/blocks/*.xml I'd also like to point you to the gnuradio.org wiki, specifically the GNURadioCompanion page, which the front page links to,

Re: [Discuss-gnuradio] gmsk on GRC

Have a look at the GMSK Spacecraft Groundstation Project on CGRAN: https://cgran.org/wiki/GMSKSpacecraftGroundstation @(^.^)@ Ed On 11/3/11 9:14 AM, ahmad wrote: Hi all I am new on working with GRC. I am researching on gmsk modulators.I could not make a proper GRC model or example. anybody h

[Discuss-gnuradio] UMTS scanner

Hi! I am trying to implement an UMTS uplink scanner with GRC. My purpose is to detect the activity of channels by sensing the spectrum and comparing the measured power against a certain threshold. The blocks that I am using are: uhd_usrp_source--->root raised cosine filter---power squelch--

Re: [Discuss-gnuradio] UMTS scanner

On 03/11/2011 9:59 AM, Miguel Sanz wrote: Hi! I am trying to implement an UMTS uplink scanner with GRC. My purpose is to detect the activity of channels by sensing the spectrum and comparing the measured power against a certain threshold. The blocks that I am using are: uhd_usrp_source--->root

[Discuss-gnuradio] E100 Simultaneous Transmit and Receive

Hi, All, Can I make E100 transmit and receive simultaneously? Basically, I want to receive what I'm transmitting. I'm using XCVR2450 daughterboard. Is there any example code? Thanks, dekst ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https

Re: [Discuss-gnuradio] E100 Simultaneous Transmit and Receive

On 03/11/2011 10:12 AM, Daniel Dekst wrote: Hi, All, Can I make E100 transmit and receive simultaneously? Basically, I want to receive what I'm transmitting. I'm using XCVR2450 daughterboard. Is there any example code? Thanks, dekst The E100 should have no problem doing that. The XCVR2450, h

Re: [Discuss-gnuradio] E100 Simultaneous Transmit and Receive

Hi, Marcus, If I use WBX, it will work? How to start coding? Is there any example or similar code? Thanks, dekst Marcus D. Leech wrote: > > On 03/11/2011 10:12 AM, Daniel Dekst wrote: >> Hi, All, >> >> Can I make E100 transmit and receive simultaneously? >> Basically, I want to receive what

[Discuss-gnuradio] A wrong power adapter connected to USRP and now it doesn't work (LED doesn't blink)

My adviser accidentally plugged in a laptop's power adapter into a USRP for a few seconds and now it doesn't respond and GNU Radio doesn't detect it either after connecting to the laptop and testing it. What do I do? I hope that there must be a fuse that is replaceable or some sort of mechanism to

Re: [Discuss-gnuradio] GRC: UHD USRP Source Block (complex - short)

On 11/03/2011 03:57 AM, luca cucchi wrote: > > Hi everybody, > Very simple issue... > I'm using GRC in order to save signal from N210 + WBX. > No problems when I set the Output Type as "Complex" in the UHD:USRP Source > block. The signal is properly saved as Complex float32. > ..I'm a bit confus

Re: [Discuss-gnuradio] A wrong power adapter connected to USRP and now it doesn't work (LED doesn't blink)

On Thu, Nov 3, 2011 at 12:15 PM, Marcus M wrote: > My adviser accidentally plugged in a laptop's power adapter into a USRP for > a few seconds and now it doesn't respond and GNU Radio doesn't detect it > either after connecting to the laptop and testing it. What do I do? I hope > that there must b

Re: [Discuss-gnuradio] gmsk on GRC

Besides everything my pre-posters have said, there's a GMSK modulator including GRC bindings in gr-digital. Which version are you using? MB On Thu, Nov 03, 2011 at 01:14:09PM +, ahmad wrote: > Hi all > I am new on working with GRC. I am researching on gmsk modulators.I could not > make a prop

Re: [Discuss-gnuradio] A wrong power adapter connected to USRP and now it doesn't work (LED doesn't blink)

On 03/11/2011 12:15 PM, Marcus M wrote: My adviser accidentally plugged in a laptop's power adapter into a USRP for a few seconds and now it doesn't respond and GNU Radio doesn't detect it either after connecting to the laptop and testing it. What do I do? I hope that there must be a fuse that

Re: [Discuss-gnuradio] A wrong power adapter connected to USRP and now it doesn't work (LED doesn't blink)

On 11/03/2011 12:15 PM, Marcus M wrote: > My adviser accidentally plugged in a laptop's power adapter into a USRP for > a few seconds and now it doesn't respond and GNU Radio doesn't detect it > either after connecting to the laptop and testing it. What do I do? I hope > that there must be a fuse t

[Discuss-gnuradio] Interesting document

While this document isn't about Gnu Radio, it's a great introduction to many of the topics that are of interest on this list, along with code examples. http://superb-dca2.dl.sourceforge.net/project/cutesdr/doc/CuteSDR101.pdf I tripped over it and found it well written. ___

Re: [Discuss-gnuradio] gr_delay

On Wed, Nov 2, 2011 at 19:20, Marcus D. Leech wrote: > OK, so here's a new attemp, with dynamic selection of taps for the FIR > filter. It also appears to not work. Only filter taps that exist on > startup are working properly. Gulp. > Won't be able to look at this 'till the weekend. John

Re: [Discuss-gnuradio] gr_delay

On 03/11/2011 2:44 PM, Johnathan Corgan wrote: On Wed, Nov 2, 2011 at 19:20, Marcus D. Leech > wrote: OK, so here's a new attemp, with dynamic selection of taps for the FIR filter. It also appears to not work. Only filter taps that exist on startup a

[Discuss-gnuradio] make check errors in release candidate 3.5.0rc0

I have one or two errors in "make check" when building 3.5.0rc0 on Debian Linux (under VirtualBox on Windows XP): (1) in gr-trellis: make[7]: Entering directory `/home/don/gnuradio-3.5.0rc0/build-debian/gr-trellis/src/python' Traceback (most recent call last): File "../../../../gr-trellis/sr

[Discuss-gnuradio] Strange behavior in digital benchmark examples

Hello all, I just came across a strange behavior in the digital benchmark examples that I haven't seen before. The transmitter wouldn't stop itself after it finishes sending the requested data size (specified by -M argument). Keyboard interrupt (ctrl+C) has no effect. I had to stop it with ctrl+Z

[Discuss-gnuradio] gnuradio library linking error

Hi, I have a test application that I want to link with the gnuradio library. I user the proper link variables but I always get the error of the following type. fatal error: gr_complex.h: No such file or directory compilation terminated. In this test application I am using the gr_complex data type

Re: [Discuss-gnuradio] gnuradio library linking error

On 11/03/2011 01:48 PM, Marcus M wrote: > Hi, > I have a test application that I want to link with the gnuradio library. I > user the proper link variables but I always get the error of the following > type. > > fatal error: gr_complex.h: No such file or directory > compilation terminated. > >

Re: [Discuss-gnuradio] Strange behavior in digital benchmark examples

On 11/03/2011 01:28 PM, Tuan (Johnny) Ta wrote: > Hello all, > > I just came across a strange behavior in the digital benchmark examples > that I haven't seen before. The transmitter wouldn't stop itself after it > finishes sending the requested data size (specified by -M argument). > Keyboard i

Re: [Discuss-gnuradio] gnuradio library linking error

On Thu, Nov 3, 2011 at 3:52 PM, Josh Blum wrote: > > > On 11/03/2011 01:48 PM, Marcus M wrote: > > Hi, > > I have a test application that I want to link with the gnuradio library. > I > > user the proper link variables but I always get the error of the > following > > type. > > > > fatal error: g

Re: [Discuss-gnuradio] gnuradio library linking error

On Thu, Nov 3, 2011 at 10:04 PM, Marcus M wrote: > > On Thu, Nov 3, 2011 at 3:52 PM, Josh Blum wrote: >> >> On 11/03/2011 01:48 PM, Marcus M wrote: >> > Hi, >> > I have a test application that I want to link with the gnuradio library. >> > I >> > user the proper link variables but I always get th

Re: [Discuss-gnuradio] gnuradio library linking error

No Alex I am using the right form. What's strange is that I did the same thing before on a different computer and it worked. On Thu, Nov 3, 2011 at 4:25 PM, Alexandru Csete wrote: > On Thu, Nov 3, 2011 at 10:04 PM, Marcus M wrote: > > > > On Thu, Nov 3, 2011 at 3:52 PM, Josh Blum wrote: > >> >

[Discuss-gnuradio] measure the impulse response of the channel

Hi all, I am new on GNU Radio.I want to measure the impulse response of the channel. I transmit a known m-sequence using BPSK modulation(dbpsk.py)at 2.4G, USRP1. At the receiver set, where should I cross-correlate the received signal with the known m-sequence to give the (complex) impulse response

Re: [Discuss-gnuradio] Strange behavior in digital benchmark examples

Josh, I've upgraded to 3.5rc0. The same thing happened. I got some more details: When I ran benchmark_tx on 1 machine, at low bitrate (0.1Mbps or 0.2MSps - I'm using bpsk) the CPU utilization is roughly 9%. But the receiver, running benchmark_rx showed 110% CPU utilization. If I up the bitrate t

Re: [Discuss-gnuradio] Strange behavior in digital benchmark examples

Just a thought. Could this be the overhead of the new stream tags? Since I didn't see it before. On Thu, Nov 3, 2011 at 10:23 PM, Tuan (Johnny) Ta wrote: > Josh, > > I've upgraded to 3.5rc0. The same thing happened. I got some more details: > > When I ran benchmark_tx on 1 machine, at low bitrate

Re: [Discuss-gnuradio] How can Receiver separate between two different frequency's input

Thanks Marcus, I appreciate your approach and i guess i will need goertzel transform over these frequencies. On Wed, Nov 2, 2011 at 2:25 AM, Marcus D. Leech wrote: > >> I am working on an application where i receive input at audio_sink and >> check for tone or data. >> Data is FSK modulated at

[Discuss-gnuradio] gr.file_sink, want to end the sensing after a while

Hello all, I am using the gr.file_sink() function to catch the raw data in GNC platform. I have created a frequency list (with 10 frequncies) in a .txt format and want to catch the raw data for each frequency. However, the problem is, when the first frequency is selected, it continues to sense and