[Discuss-gnuradio] USRP2 for my Radio Astronomy stuff

2009-02-11 Thread Marcus D. Leech
Well, I now have my first user with a USRP2. So, what are the gotchas that are going to bite me when supporting USRP2 in code that's used to USRP1? Setup seems a little different--only 1 TX and 1 RX channel, etc. Here's my new setup_usrp() function: def setup_usrp(self): if

Re: [Discuss-gnuradio] USRP2 for my Radio Astronomy stuff

2009-02-11 Thread Marcus D. Leech
Johnathan Corgan wrote: One significant change to consider is your sample rate plan--you now have different ADC and DAC frequencies, so depending on what you're doing, your integer decimation ratios may need to change. That's not a problem. I run at various bandwidths, depending on what

Re: [Discuss-gnuradio] USRP2 for my Radio Astronomy stuff

2009-02-11 Thread Johnathan Corgan
On Wed, Feb 11, 2009 at 11:25 AM, Marcus D. Leech mle...@ripnet.com wrote: The floating point source for the usrp1 has a range of [-32768.0 32767.0], while for the usrp2 it is automatically scaled to [-1.0 1.0]. This will affect your front end range scaling or software AGCs. Oh. Is that