Re: [Discuss-gnuradio] ImportError: No module named _osmosdr_swig

2017-05-10 Thread Fernando
On 10/05/17 22:43, Cinaed Simson wrote: > The odd thing is gnuradio-companion should have complained if the > PYTHONPATH wasn't being set. > > So it's being set somewhere else. > > How do you know you only have one installation of gnuradio installed? Opensuse has a packet manager similar to debian,

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

2017-05-10 Thread Cinaed Simson
I would start with source -> low pass filter(complex) - rational-resampler(complex) -> am demod -> number sink(float). I have never used the AM Demod block and I have never calculated the Modulation Index for AM. But it does appear you have a plumbing problem. I would start with changing the

Re: [Discuss-gnuradio] ImportError: No module named _osmosdr_swig

2017-05-10 Thread Cinaed Simson
On 05/10/2017 06:56 AM, Fernando wrote: > fernando@andromeda:~> python2.7 -c "import os; > print(os.environ.get('PYTHONPATH', ''))" > > fernando@andromeda:~> python --version > Python 2.7.12 > fernando@andromeda:~> > > > fernando@andromeda:~> export PYTHONPATH="/usr/lib64/python2.7/site-packages

[Discuss-gnuradio] Announcing NEWSDR at Tufts University on Thr/Fri June 1/2

2017-05-10 Thread Neel Pandeya
* CALL-FOR-PARTICIPATION * NEWSDR 2017 New England Workshop on Software Defined Radio

[Discuss-gnuradio] Custom C++ blocks on E310

2017-05-10 Thread Jessica Iwamoto
Hi all, I have built custom C++ blocks that work on my PC, but don't work when cross compiled for the E310. Specifically, I am trying to build a custom C++ block with a message port and cross compile it for the E310. I am using version 3.7.12 of GNU radio and the latest version of the SDK/toolc

Re: [Discuss-gnuradio] USRP tx_time tags and late packets

2017-05-10 Thread Stephen Larew
As of now, reverting to UHD 3.9.6 from 3.10.1.1 has fixed our late and underflow issues. We’ve experimented with buffers between blocks to minimize latency, but what we have now (top_block.start()) is satisfactory. We switched to scheduling packets according to the USRP clock and not the host

Re: [Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

2017-05-10 Thread Kevin Reid
On Wed, May 10, 2017 at 3:31 AM, Matt Cooper wrote: > Hi guys! > > I am trying to calculate the Depth of Modulation > of > an AM signal using GNU Radio, but I just can't make it work. > ... > - In GNU Radio, I'm using this

Re: [Discuss-gnuradio] ImportError: No module named _osmosdr_swig

2017-05-10 Thread Fernando
fernando@andromeda:~> python2.7 -c "import os; print(os.environ.get('PYTHONPATH', ''))" fernando@andromeda:~> python --version Python 2.7.12 fernando@andromeda:~> fernando@andromeda:~> export PYTHONPATH="/usr/lib64/python2.7/site-packages" fernando@andromeda:~> python2.7 -c "import os; print(os.

Re: [Discuss-gnuradio] Scanoo_rx: New GUI, Center Freq Hopping & SSB Modulation

2017-05-10 Thread Mike Jameson
Lou, Apologies for the late reply. > Mike, thanks for the detailed explanation. Is there a reason for doing the > channel selection via FFT/IFFT method as opposed to a frequency xlating > filter? Maybe it's more efficient since you needed to do the FFT anyway for > the spectrum sense. I utilis

[Discuss-gnuradio] Help needed to obtain AM Depth of Modulation

2017-05-10 Thread Matt Cooper
Hi guys! I am trying to calculate the Depth of Modulation of an AM signal using GNU Radio, but I just can't make it work. To test, I am using a Rode & Schwarz SMB100M signal generator connected to a USB SDR receiver