Re: [Discuss-gnuradio] Intermediate frequency question

2011-10-05 Thread Brook Lin
Hi All, I am confused on this reply. The reply said that With the RFX2400, and most of the high frequency usrp daughtercards, there is no IF frequency. How is that possible? For RFX2400 the RF range is from 2.3GHz to 2.9GHz, the ADC rate for USRP1 is 64MS/s. If there is no IF frequency, the ADC

Re: [Discuss-gnuradio] Intermediate frequency question

2011-10-05 Thread Nick Foster
By no IF frequency he meant the LO frequency is the same as the RF frequency. This is called a zero-IF receiver, or direct conversion. http://en.wikipedia.org/wiki/Direct-conversion_receiver --n On Wed, Oct 5, 2011 at 4:08 PM, Brook Lin gnu.f...@yahoo.com wrote: Hi All, I am confused on

Re: [Discuss-gnuradio] Intermediate frequency question

2011-10-05 Thread Brook Lin
Hi All, I am confused on this reply, posted on http://old.nabble.com/Intermediate-frequency-question-td23514126.html#a32598120 http://old.nabble.com/Intermediate-frequency-question-td23514126.html#a32598120 . The reply said that With the RFX2400, and most of the high frequency usrp

Re: [Discuss-gnuradio] Intermediate frequency question

2011-10-05 Thread Marcus D. Leech
On 10/05/2011 07:11 PM, Nick Foster wrote: By no IF frequency he meant the LO frequency is the same as the RF frequency. This is called a zero-IF receiver, or direct conversion. http://en.wikipedia.org/wiki/Direct-conversion_receiver --n More precisely, and completely, they use a

Re: [Discuss-gnuradio] Intermediate frequency question

2009-05-14 Thread adib_sairi
Mir Ali-4 wrote: Yeah, I got it. I read in a tutorial and I understand now. hi Ali, what tutorial do you read for this? hope it will be useful to others especially to me =) tQ Adib -- View this message in context:

Re: [Discuss-gnuradio] Intermediate frequency question

2009-05-13 Thread Mir Ali
Yeah, I got it. I read in a tutorial and I understand now. Thanks again. On Wed, May 13, 2009 at 12:21 AM, Jason Uher jasonu...@gmail.com wrote: If I am using RFX2400 then what is the IF frequency and can we change this to some other value? Correct me if the question I asked is wrong.

[Discuss-gnuradio] Intermediate frequency question

2009-05-12 Thread Mir Ali
Hi, If I am using RFX2400 then what is the IF frequency and can we change this to some other value? Correct me if the question I asked is wrong. Thanks, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] Intermediate frequency question

2009-05-12 Thread Jason Uher
If I am using RFX2400 then what is the IF frequency and can we change this to some other value? Correct me if the question I asked is wrong. With the RFX2400, and most of the high frequency usrp daughtercards, there is no IF frequency. The samples you receive (or send) from the usrp.source_x