Re: [Discuss-gnuradio] cheap sdr platform

2017-10-05 Thread Getz, Robin
Marcus: It’s not only Pluto that does not have filters, I was trying to make the point (maybe not effectively) at GRCon - it’s radios in this “class”. For example LimeSDR (sheet 5)

Re: [Discuss-gnuradio] cheap sdr platform

2017-10-05 Thread Getz, Robin
Sorry for the delay – but there must be a host issue you are having – I can stream 8MSPS (no underflows/overflows), and others get higher (12 or so). If you are only getting 4 – I would be interested in following up, and understanding why. It should be much higher. -Robin From:

[Discuss-gnuradio] sh: .//top_block.py: Permission denied

2017-10-05 Thread Mark Christiansen
Any ideas for the Permission denied errors below? I get the following error on one host running 3.7.6: $ grcc -e -d . test.grc >>> Warning: This flow graph may not have flow control: no audio or RF hardware blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion. sh:

[Discuss-gnuradio] SoCal gnuradio/SDR meetups

2017-10-05 Thread James Wanga
Hi folks. Is anyone aware of any gnuradio or SDR meetups or hackerspaces in SoCal, or elsewhere for that matter. I’d love to contribute to a physical community of like-minded hackers. James Wanga ___ Discuss-gnuradio mailing list

Re: [Discuss-gnuradio] Implementing feedback loops

2017-10-05 Thread Geof Nieboer
> A few solutions I have read online say that all feedbacks can be done internal to the custom block. The problem i have is that my application will no longer be real time. Why don't you think it will be in real time? If you have a code branch so that y0 still outputs (invalid) data on flowgraph

Re: [Discuss-gnuradio] Implementing feedback loops

2017-10-05 Thread Marcus Müller
Hi Vipin, sorry, I don't fully understand. So you only have one block, A, but it implements multiply functions x() and y()? What are y0 and y1? Are they just two values, or are they two streams? I think I would very greatly benefit from having a drawing. Really, just anything on a piece of

[Discuss-gnuradio] Implementing feedback loops

2017-10-05 Thread Vipin Sharma
I am aware that GNURadio doesn't support feedback loops in the flow graph. However, I have an application scenario where every execution of a GRC block, I need some of the previous outputs of that block. For example, if I have a block called A which produces y0,y1 and consumes i0, i1. Assume all

[Discuss-gnuradio] PhD opportunity in SDR/gnuradio satellite modem development

2017-10-05 Thread Jacqueline . Walker
Applications are invited for a PhD studentship in software radio for satellite communications. The work will be based within the Telecommunications Research Centre in the Department of Electronic and Computer Engineering at the University of Limerick, Limerick, Ireland. The student will be

Re: [Discuss-gnuradio] stop/start is not called in gr.basic_block

2017-10-05 Thread Miklos Maroti
Hi Bastian, Thanks that solved the issue. I was not aware of that. Best, Miklos On Thu, Oct 5, 2017 at 2:29 AM, Bastian Bloessl wrote: > Hi, > > On 10/05/2017 03:13 AM, Miklos Maroti wrote: >> >> I am trying to implement a simple block in python but it seems that >> stop

Re: [Discuss-gnuradio] repeated saving binary file without stopping the gnuradio

2017-10-05 Thread Marcus Müller
Hi Mario, I don't fully understand what you meant when you said "save the waterfall output to file"; could you elaborate? Maybe a quick flow graph screenshot (there's a tool for that under "File" in GRC) would help! Thanks, and best regards, Marcus On 10/04/2017 05:50 PM, Mario Batubara

[Discuss-gnuradio] project hardware question lms7002 evaluation board

2017-10-05 Thread ogün levent
Hi, We need to do a standalone sniff-jam and communication via mavlink communication system on a uav as a university project. The hardware we planning to buy is limemicrosystems lms7002 evaluation board(unite7002) beaglebone black and pixhawk. Is it possible to do such project on gnuradio? The

Re: [Discuss-gnuradio] stop/start is not called in gr.basic_block

2017-10-05 Thread Bastian Bloessl
Hi, On 10/05/2017 03:13 AM, Miklos Maroti wrote: I am trying to implement a simple block in python but it seems that stop and start is never called when I implement them. The bare bones python code would be this: class test(gr.basic_class): def __init__(self):