Re: [Discuss-gnuradio] UHD & LibUSRP works with both but...Re: 2 USRP1s, both loads firmware correctly, but only 1 can run ANY sdr apps. Why?

> How can I get the 2nd USRP1 to work just like the 1st USRP1? If both USRP are the same hw rev and have the same DB with also same hw rev, and one works with a given software stack and the other doesn't, then most likely the HW is damaged. Cheers, Sylvain __

Re: [Discuss-gnuradio] Burst FSK Receiver Clock Synchronization Problems

On 12/7/15, 2:39 PM, "Andy Walls" wrote: >Ryan Wilson wrote: >> Hi all, >> >> >> I am currently attempting to get a bit stream from a captured RF >> signal that I know is from a burst FSK transmitter( 433.92 MHz >> carrier, 10kHz deviation, Manchester). >> >> Using GNU Radio 3.7.8. >> >>

Re: [Discuss-gnuradio] U32 type for module output

The idea of the u8 data type is that it does a raw dump of the data. So if you receive it, then cast the buffer as uint32_t *, you'll get your data. OK, I thought I was on the same page until this statement. So I make my output in my verilog code will be 32b, and I can set things up like normal

Re: [Discuss-gnuradio] U32 type for module output

The idea of the u8 data type is that it does a raw dump of the data. So if you receive it, then cast the buffer as uint32_t *, you'll get your data. On a side note, sc16 is actually a bit different. Not only do we have signed 16-bit ints, we also have to take special care with endianness and, more

Re: [Discuss-gnuradio] UHD & LibUSRP works with both but...Re: 2 USRP1s, both loads firmware correctly, but only 1 can run ANY sdr apps. Why?

Sylvain, Marcus, Thanks Sylvain for clairfying that the USRP1 does in fact need GNURadio 3.4.2 in order for it to work with OpenBTS, OsmoTRX, but the problem remains: I have 2 USRP1s, both works with lsusrp and/or UHD, as both drivers recognizes, and loads the firmware correctly on BOTH my USR

Re: [Discuss-gnuradio] Resending a strange demodulated signal

Yes I've seen something like this. It is used with NOAA weather satellites, and the system is called APT there. https://en.wikipedia.org/wiki/Automatic_Picture_Transmission "The signal itself is a 256-level amplitude modulated 2400Hz subcarrier, which is then frequency modulated onto the 137 MHz-

Re: [Discuss-gnuradio] Baudline sink ist missing

Hi Rebecca! Awesome! I especially liked your drawing, it gives a quick overview of what you're trying to do; I always found it very helpful to include such graphics in reports etc to give people a instantaneous understanding of the system I'm considering. So, the central points are that you a) wa

Re: [Discuss-gnuradio] DVBT project receiver problem [demultiplex the transport stream]

Hi Ihab, um, your OS should have a screenshot function (so you don't have to take a photograph of your screen in the future). > ​ looking for a way to just use this data if there is no way to do > that with gnu radio what other options do i have. Well, FFmpeg was but one possibility I mentioned b

Re: [Discuss-gnuradio] Baudline sink ist missing

I make a sketch on a piece of paper and upload it here [1] i hope you can understand was i'm looking for.the [2] explain how i proceed to result that. the graph [3] ist the result that i became but looks not very exact to be. I can not see the preamble, the synword and the data. [1]

Re: [Discuss-gnuradio] U32 type for module output

(I originally responded to the wrong mailing list) > No, there's not. If there's demand, we can add that of course. Do you > actually need to *stream* u32 types? Will u8 work for you? You can > re-cast it to whatever in your application. Martin, I doubt that there is a high demand, I just sor

[Discuss-gnuradio] IMG_6003.JPG

I've shared an item with you: IMG_6003.JPG https://drive.google.com/file/d/0B-1t8nr3dPzhMmE1Vi1WajVMU3UwUW5idGY2c3QzSnJSbnI0/view?usp=sharing&invite=CNezi4MG&ts=5666eb2b It's not an attachment -- it's stored online. To open this item, just click the link above.

Re: [Discuss-gnuradio] DVBT project receiver problem [demultiplex the transport stream]

Hi Marcus, Yes the multiplex I'm considering is the MPEG transport stream multiplex. Here in Ireland we use the standard MPEG-4, so when i receive a DVB-T signal through gnu radio I use file sink to save the stream and then VLC to play the file (stream). When i open the VLC i got many programs p

[Discuss-gnuradio] Resending a strange demodulated signal

Hello, I've finally figures out the demodulation of my strange FFSK signal I've asked about in my last Email "FFSK/MSK Demodulation in Gnuradio". I've used the attached flowgraph and the demodulation works fine now. Apperantly it had a bitrate of 2400, since the wave with Complex to Mag works w

Re: [Discuss-gnuradio] Baudline sink ist missing

Hi Rebecca, I'm a bit confused: you have to *define* the size of the vectors you pass as items through your GNU Radio flow graph. Maybe we're talking about different concepts of vectors. Maybe you can explain (make a sketch on a piece of paper, and upload that somewhere, maybe?) what you're looki

Re: [Discuss-gnuradio] Adjusting Sampling Frequency of Custom C++ Source Block Help

Hi Charles, On 08.12.2015 03:45, Charles Bridger wrote: > I'm extremely new to this (gnuradio, usrp's, and radios in general) so > I apologise if this question doesn't make sense or has obviously been > answered else where ( I have up until now been trying to find answers > without bothering anyon

Re: [Discuss-gnuradio] Measure the power using USRP

To emphasize on what the other Marcus said: GNU Radio only knows numbers, not physical units. The USRP delivers numbers, relative to full ADC range, to the computer. What these numbers represent depends on a lot of factors, most of which are in the analog domain and different for every device, ever

Re: [Discuss-gnuradio] Baudline sink ist missing

Hi Marcus, i don't know the vector size, i don't know how the vector looks, that is the reason why I would use the vector sink to Know how my vector stream looks. i would like to see the stream of my signal into the vector sink like a sequence from 0s and 1s. in addition how can i open the vector