Re: [Discuss-gnuradio] gnuradio radio test repeatability

2017-06-10 Thread Cinaed Simson
On 06/08/2017 10:24 PM, li...@lazygranch.com wrote: > If the idea is to navigate to > build/gr-fec > then > make test > I don't pass that either. Blow away the build directory and build it again, then run make test twice. Don't do an install or change userids. The tests are reproducible. If

[Discuss-gnuradio] ZeroMQ versus Async message ports

2017-06-10 Thread G Reina
We're developing a GNURadio application that requires us to have separate blocks running simultaneously and passing messages to each other asynchronously. We are thinking of using the ZeroMQ blocks that are built into GRC with a publish/subscribe model. Are there any advantages of disadvantages to

Re: [Discuss-gnuradio] Role of Clock Recovery in communication in SDR based application?

2017-06-10 Thread Ron Economos
The "O" being printed means "overflow". Every time there is an overflow, samples are lost and the DVB-T OFDM Symbol Acquisition block will detect that and restart the acquisition. Some options: 1) Use a more powerful computer. 2) Reduce the sample rate. Instead of using an 8 MHz channel, try

[Discuss-gnuradio] OP25

2017-06-10 Thread John Ackermann N8UR
I spent some time fiddling with the OP25 P25 trunking scanner software, and with a lot of help from the guys on the op25-dev mailing list got it working pretty well. The "how to get it to do something useful" part isn't too well documented, so I thought I would document the config steps and fi

[Discuss-gnuradio] Role of Clock Recovery in communication in SDR based application?

2017-06-10 Thread Stack Programer
We in this blog post want to discuss about CDR . In Digital Communication Clock Role is very important in Receivers and Transmitters. we know that any element in Digital Communication has internal or external clock that work with it as a reference clock

Re: [Discuss-gnuradio] why can't use iwconfig when I run the gr-ieee802-11

2017-06-10 Thread Marcus Müller
Hi Siyu, On 06/09/2017 11:04 PM, zhan siyu wrote: > Hi Bastian, > > Thanks for reply. I know they are two different values. 5M is for > the physical layer and 115K bits/s is for the application layer. The > application layer's upper bound should be the physical layer. um, yeah, it's a strict upp