Re: [Discuss-gnuradio] Why does I channel have non-zero data for Q direct sampling mode

2017-06-03 Thread Patrick Sathyanathan
Ok, I read the original thread that discussed the direct sampling mod on the google group here: https://groups.google.com/forum/#!topic/ultra-cheap-sdr/cG988R1D8uE . That has a good explanation of how the mod works. It seems you do get I/Q samples and not just Q samples as the name "Q branch

[Discuss-gnuradio] Bus ports problem -- issue from 2016?

2017-06-03 Thread John Ackermann N8UR
I've started experimenting with the bus port capability, using 3.7.11.1. The QT GUI Frequency Sink creates a bus with one more port than the number required (possibly a hidden message port). This was reported as a bug last year, and still seems to be a problem. Is a fix for this on the horiz

[Discuss-gnuradio] IEEE 802.11 Transceiver Module - Timing offset at receiver side

2017-06-03 Thread Qurat-Ul-Ann Akbar
Hello, How is the timing offset being handled in the 802.11 module. I see that the sync_long block does frequency offset correction and the frame_equalizer block does the phase correction but I dont understand where is the timing offset being handled. Can anyone tell me which algorithm is being us