Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 165, Issue 15

2016-08-14 Thread Kevin McQuiggin
alisation/ >> >> You can see a number of videos I have made with the block, for >> different modulation schemes. >> >> Cheers >> Chris >> -- next part -- >> An HTML attachment was scrubbed... >> URL

Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 165, Issue 15

2016-08-14 Thread bala vishnu
e block, for > different modulation schemes. > > Cheers > Chris > -- next part -- > An HTML attachment was scrubbed... > URL: <http://lists.gnu.org/archive/html/discuss-gnuradio/ > attachments/20160814/1f6304c4/attachment.html> > > --

Re: [Discuss-gnuradio] uint64_t to PMT in Python

2016-08-14 Thread Lakshay Narula
Hi Marcus, Yes, from_long() did actually work fine with the hardware. However, I think I am facing a more general problem with Python binding of GNU Radio. For example, the uhd.usrp_sink.get_full_secs() function returns a variable of data type time_t. Once again, this is not recognized in Python.

[Discuss-gnuradio] Block's maximum Samples per second

2016-08-14 Thread Joe D
Hello GNURadio’ers Referring to numerous papers and previous discussions, GNURadio design is such as a block will run as fast as the CPU will allow it (unless limited by the source/sink front-end’s speed or introducing a Throttle Block.) But practically how fast will it go, is there a know

Re: [Discuss-gnuradio] uint64_t to PMT in Python

2016-08-14 Thread Marcus Müller
Hi Lakshay, haven't tried that in a while; but wouldn't from_long() work? Best regards, Marcus On 12.08.2016 16:26, Lakshay Narula wrote: > Hello, > > I am trying to use the "tx_time" tag in my Python OOT block. The value > for this tag is a tuple of PMTs: integer seconds in PMT format derived

Re: [Discuss-gnuradio] How to select the proper equalizer for 8PSK modulation

2016-08-14 Thread Marcus Müller
Hi Damindra, that's hard to say without knowing your flow graph in detail; generally, you seem to have two competing control loops in there; that might be fine, but I'm not sure the costas loop is able to sync succesfully on 8PSK. Greetings, Marcus On 14.08.2016 20:26, Damindra Bandara wrote: >

[Discuss-gnuradio] How to select the proper equalizer for 8PSK modulation

2016-08-14 Thread Damindra Bandara
Hi, I am trying to send 8PSK modulated signal using Ettus USRP. I designed the application using GNURadio PSK Mod/Demod blocks. The two blocks worked perfectly for BPSK and QPSK modulations. However for 8PSK modulation did not work as expected. The receiver received packets only once in a while an

[Discuss-gnuradio] [SOCIS] Visualisation

2016-08-14 Thread Christopher SigInt
Hi Everyone, This week I have primarily been working on a block to visualise FAM output in 3D: https://signalsintelligence.wordpress.com/2016/08/13/visualisation/ You can see a number of videos I have made with the block, for different modulation schemes. Cheers Chris __