[Discuss-gnuradio] Underrun and sampling rate problem

2012-10-08 Thread Sakib Chowdhury
Hi all, I'm trying to employ basic On-off keying (OOK) modulation to transmit video stream. The way I'm doing it is by using UDP streaming from VLC player and collecting that data by a UDP source in GRC. Since this is OOK, I assume the flowgraph should be somewhat similar to FSK, and hence my flow

[Discuss-gnuradio] Blocks missing from GRC after pre-cog installation

2012-10-17 Thread Sakib Chowdhury
Hi, I installed pre-cog following the last section of https://github.com/buoyboy/pre-cog/wiki/Installation only. I already had working GNUradio with grextras installed, which I did by simply running the installation script http://www.sbrac.org/files/build-gnuradio . Now strangely I see that many b

Re: [Discuss-gnuradio] Blocks missing from GRC after pre-cog installation

2012-10-17 Thread Sakib Chowdhury
On 10/17/2012 01:13 PM, Sakib Chowdhury wrote: > > Hi, > > > > I installed pre-cog following the last section of > > https://github.com/buoyboy/pre-cog/wiki/Installation only. I already had > > working GNUradio with grextras installed, which I did by simpl

Re: [Discuss-gnuradio] Blocks missing from GRC after pre-cog installation

2012-10-18 Thread Sakib Chowdhury
ing that script? Thanks. On Wed, Oct 17, 2012 at 5:32 PM, Johnathan Corgan wrote: > On Wed, Oct 17, 2012 at 2:30 PM, Sakib Chowdhury > wrote: > > >> I noticed that actually all block files (xml) are still there >> in /usr/local/share/gnuradio/grc/blocks/ . What GRC is not d

Re: [Discuss-gnuradio] No Digital Modulation Working

2012-10-24 Thread Sakib Chowdhury
Apart from what everyone said, what I can see from your attached file is that you are multiplying with 5000 before sending to USRP sink, isn't it? There is possibly a clipping issue here. Also in the receiver side, you should remove the throttle. Throttle is needed only when there is no hardware in

Re: [Discuss-gnuradio] Blocks missing from GRC after pre-cog installation

2012-10-25 Thread Sakib Chowdhury
> > -josh > > > -josh > > > > On 10/22/2012 01:52 PM, Sakib Chowdhury wrote: > >> Hi, > >> > >> I cannot figure out the source of the problem. I don't have multiple > >> installations of gnuradio. While I'm installing gnuradio

Re: [Discuss-gnuradio] saving internal (to a block) variable values to a file

2012-10-25 Thread Sakib Chowdhury
You have to open the file in "binary" mode to write binary data, otherwise it is in text mode by default. Doesn't matter what the extension is - txt or dat or anything else - what matters is how you are opening the file in fstream::open. Hope that helps. On Thu, Oct 25, 2012 at 2:01 PM, Zing Yu