[Discuss-gnuradio] swapping spectrum on the FCD

2012-12-15 Thread Stefano Sinagra
Hi, I'm using a FunCube Dongle to FFT monitor the 69MHz if of my Yaesu FT950 ham transceiver. Unfortunately spectrum is shown inverted, with signals 10kHz above my center frequency shown instead 10kHz below. This isn't something new and I've seen I/Q swapping options in other instances. Is there

Re: [Discuss-gnuradio] swapping spectrum on the FCD

2012-12-15 Thread Alexandru Csete
On Sat, Dec 15, 2012 at 11:55 AM, Stefano Sinagra sinage...@gmail.com wrote: Hi, I'm using a FunCube Dongle to FFT monitor the 69MHz if of my Yaesu FT950 ham transceiver. Unfortunately spectrum is shown inverted, with signals 10kHz above my center frequency shown instead 10kHz below. This

Re: [Discuss-gnuradio] Bug Fixers Needed

2012-12-15 Thread Patrik Tast
Does the relatively-simple 2D rendering done by GNu Radio graphs really require OpenGL? Im not an expert, by any means, but those types of graphs (simple line graphs, and even the waterfall) were the sorts of things we were doing over 100Mbit connections to an X-terminal 20 years ago. No

Re: [Discuss-gnuradio] Bug Fixers Needed

2012-12-15 Thread Martin Braun (CEL)
On Fri, Dec 14, 2012 at 03:54:49PM -0500, Marcus D. Leech wrote: [...] I think we could detect this feature and change the label text to crash me if not present. My preference for this one is to simply disable the feature altogether until someone does a top-to-bottom re-write of our use

[Discuss-gnuradio] FSK performance as a function of Fd?

2012-12-15 Thread Joanna Rutkowska
Hello, I've been trying to understand today how does frequency deviation (Fd) affect the performance of FSK modulation. More specifically how can one express required receiver sensitivity (for a given bitrate and BER) as a function of Fd? I used to think, apparently naively, that the larger the

Re: [Discuss-gnuradio] FSK performance as a function of Fd?

2012-12-15 Thread Nathan West
Hi! - response interleaved. (after some sucking at list management) -nw On Sat, Dec 15, 2012 at 5:48 PM, Joanna Rutkowska joa...@invisiblethingslab.com wrote: Hello, I've been trying to understand today how does frequency deviation (Fd) affect the performance of FSK modulation. More