Re: [Discuss-gnuradio] [USRP-users] Setting the Decimation Factor in GNU Radio for USRPN2920

2014-04-01 Thread Ian Buckley
The N2920 is derived from N210, it uses a USRP2 clocking architecture with a fixed 100MHz ADC/DAC clock and *ONLY* supports integer decimation rates. Decimation rates that factor by 4 are preferred as they provide a much flatter passband. -Ian On Apr 1, 2014, at 10:10 PM, Amber and Sarosh wr

[Discuss-gnuradio] GR Meetup in Tysons Corner / McLean VA Wednesday night!

2014-04-01 Thread Tom Rondeau
Meetup tomorrow: Wednesday, April 2, 7pm Cylde's of Tysons Corner (8332 Leesburg Pike, Vienna, VA 22182) I've only heard from a few people, so if you haven't already, let me know if you'd like to join us. I'll try to get an appropriate table. This is just an informal get-together to see some old

[Discuss-gnuradio] running multiple flow graphs simultaneously

2014-04-01 Thread Rob Miller
Hi - Is it possible to run more than one top_block at a time in gnuradio 3.7.x? I have an application where I wish to run an additional flow graph periodically. I have set up a thread that grabs samples via a probe from my main flow graph that is running all of the time, and uses tha

[Discuss-gnuradio] simple_ra/gr-ra_blocks updated for GR3.7

2014-04-01 Thread Marcus D. Leech
I've updated simple_ra and gr-ra_blocks for GR3.7. NOT extensively tested And when building gr-ra_blocks, your PKG_CONFIG_PATH had better include /usr/local/lib:/usr/local/lib64 prior to doing the "cmake". -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http:/

[Discuss-gnuradio] FFT filter bug in GR3.7.4

2014-04-01 Thread Marcus D. Leech
Tag: v3.7.4git-50-ga8f73d85 This demonstrates a horrible bug I found in FFT filters--change the size from "little" to "quite large", and the scheduler goes running home to momma: thread[thread-per-block[1]: ]: Buffer too small for min_noutput_items I've attached a minimal GRC to show thi

Re: [Discuss-gnuradio] GNU radio on Android: status?

2014-04-01 Thread Ralph A. Schmid, dk5ras
I really would recommend some x86 tablet; I am using gnuradio on a MS Surface pro, and this is really fun! Ralph. > -Original Message- > From: discuss-gnuradio-bounces+ralph=schmid@gnu.org > [mailto:discuss-gnuradio-bounces+ralph=schmid@gnu.org] On Behalf Of > Udo van den Heuve

Re: [Discuss-gnuradio] GNU radio on Android: status?

2014-04-01 Thread Marcus Müller
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello Udo, I'm not aware of any mass-usable Android port. Usually, you don't compile on the android (embedded) device itself, so cross-compiling is absolutely preferable. Please understand that while Android is based on a linux kernel, the userland i

[Discuss-gnuradio] GNU radio on Android: status?

2014-04-01 Thread Udo van den Heuvel
Hello, What is the best way to get gnuradio on android? Do I crosscompile, or compile on the device itself, do I use linux-on-android, etc. What is the best way, the most efficient w.r.t CPU of the device at runtime? Are there any howto's? Guides? Please discuss as I am interested in getting gnur

Re: [Discuss-gnuradio] problem with packet decoder for gmsk

2014-04-01 Thread Ank
This worked good, but with usrp its still no output, I'm working on that. As i'm student, my project is on gsm/gsm-bts . Can I implement this modulation scheme for for physical/L1 layer of gsm. Are there any modules available for gsm frame and burst, for L2,L3 layers. Thank you all Ank

Re: [Discuss-gnuradio] How to use a single-threaded scheduler

2014-04-01 Thread Martin Braun
On 03/31/2014 09:05 PM, Marcus Müller wrote: > That environment variable is "GR_SCHEDULER": > >> git grep getenv > ... > gnuradio-runtime/lib/top_block_impl.cc:char *v = getenv("GR_SCHEDULER"); > ... > > and you need to set it to "STS": > > export GR_SCHEDULER=STS > ./my_gr_flowgraph.py Please