Re: [Discuss-gnuradio] dive into gnu-radio

2016-03-18 Thread Anon Lister
Also coming from a formal software engineering background, I found Michael Ossman's SDR with HackRF(https://greatscottgadgets.com/sdr/) series very informative. It has "homework" sections and starts with very little in assumptions of your prior knowledge. You dont need a hackrf, any sdr, including

[Discuss-gnuradio] Pybombs 2: how to use "--config" parameter, how to disable "forcebuild" of gnuradio

2016-03-18 Thread Piotr Krysik
Hi all, How to use "--config" option of pybombs 2. Can someone show an working example? In pybombs 2 "forcebuild" is set to true for gnuradio by default. How to disable "focebuild" for gnuradio from commandline with the pybombs command? Best Regards, Piotr Krysik ___

Re: [Discuss-gnuradio] dive into gnu-radio

2016-03-18 Thread Jesse Reich
I had to reply to Kevin because I am literally laying in bed reading "Digital Signal Processing: A Guide for Scientists and Engineers" as his email came in. I'm on a similar journey (about three months in) and just wanted to reiterate that while GRC seems to be a very powerful tool, it can't be

[Discuss-gnuradio] packetized data transmission

2016-03-18 Thread Anurag Gupta
I am using GNU RADIO with SDR kits for my project in which I need to send packetized data from the transmitter to the receiver . I want to measure quality degradation parameters like packet loss,throughput. Please give me some idea to implement this. -- *Thanks and Regards,Anurag Gupta*

[Discuss-gnuradio] DOPPLER SHIFT

2016-03-18 Thread ERNEST MATEY
Hi All, I am trying to track Satellite for CW  signal receiving and analysis on my GNURadio.   I know I need some tracking with Doppler shift.  What is the best way to do this? Now, I have GPredict installed hoping to use it.  I have added the GPredict doppler block to my GRC library blocks a

Re: [Discuss-gnuradio] dive into gnu-radio

2016-03-18 Thread Martijn Moeling
I must say I have similar feelings even though I am a fully licensed ham radio operator and a low level protocol engineer. I have have a hard time understanding most of the blocks. The tutorials are going up to a point where things get interesting and then they end. Although I do understand th

Re: [Discuss-gnuradio] Lock onto QPSK signal

2016-03-18 Thread Henry Barton
Wow, thanks for the comprehensive reply. You covered a lot of material and I like how simple you make it. >"amont of similarity between the RX signal shifted in time by 𝜏 and the right >spreading sequence". Look for the peak. That's your timing offset.I guess that >means if I have an x16 chip ra

Re: [Discuss-gnuradio] diminishing returns with increasing frequency offset

2016-03-18 Thread Martin Braun
Tom, you'll need to tell us more about what you're doing and what you've tried. Cheers, Martin On 03/17/2016 03:36 PM, tom x wrote: > It's strange but the only sampling rate that works is 4 MHz; Packets are > not decoded when the sampling rate is set above this rate. > > Thanks, > Tom > > On T

Re: [Discuss-gnuradio] Two Daughterboards

2016-03-18 Thread Martin Braun
A USRP object can group devices (this currently only works with N2X0 and X3X0 series). With the X3X0, you can have even more than 32 channels, which would mean you're grouping 16 devices. Cheers, M On 03/16/2016 02:54 PM, olvhammar wrote: > Ok thanks! > > Thought the channels referred to the TX/

[Discuss-gnuradio] GNU Radio Website Update

2016-03-18 Thread Ben Hilburn
Hey all - As I mentioned in my introduction e-mail earlier this week, Johnathan and I are working hard on upgrading the website. There are a couple of components to this: - Development Content: wikis, issue tracker, code repos, etc., - User Content: about the project, the organization, GRCo

[Discuss-gnuradio] Fwd: GNU Radio Website Update

2016-03-18 Thread Ben Hilburn
Re-sending this e-mail to the list. We recently made some DNS changes to the gnuradio.org MX, and as a result it appears that many messages from @ gnuradio.org e-mail addresses have been landing in folks' spam folders. We believe we have rectified the problem, and so I'm trying this one again. Sor

Re: [Discuss-gnuradio] Change frequency in USRP source automatically

2016-03-18 Thread Yan Huang
Hi Timothée, Thank you so much, I’ve got the frequency sweeper with your advice. It’s not the problem about GNU Radio, I added “work” function in my code but actually it’s a message block which do not need a IO stream ports. Many thanks, Yan From: Timothée COCAULT [mailto:timothee.coca...@gmail

Re: [Discuss-gnuradio] diminishing returns with increasing frequency offset

2016-03-18 Thread Bastian Bloessl
Hi, > On 18 Mar 2016, at 20:01, tom x wrote: > > > Maybe there is an implicit dependence on 4MHz, in the parameters set by the > Clock Recovery block? I am not sure. > If there's any other relevant info I can give, let me know. The omega parameter of the MM Clock Recovery defines the samples