[Discuss-gnuradio] base band signal sample frequency in RFX 900 daughter board

2012-08-09 Thread pengyu zhang
Hi, I use USRP1 and RFX 900 daughter board to receive an 925MHz signal. The receiver configuration code is shown below. Some people told me that the RFX 900MHz board will do down conversion and convert the 925MHz signal to a base band signal automatically. Can you tell me what is the frequency to

Re: [Discuss-gnuradio] base band signal sample frequency in RFX 900 daughter board

2012-08-09 Thread Ed Criscuolo
On 8/9/12 11:09 AM, pengyu zhang wrote: Receiver's configuration code: rx = usrp.source_c(0, dec_rate, fusb_block_size = 512, fusb_nblocks = 8) The decimation rate determines the final sample rate. For example: Since the USRP1 digitizes at 64 Msamples/sec, a

Re: [Discuss-gnuradio] base band signal sample frequency in RFX 900 daughter board

2012-08-09 Thread pengyu zhang
Got it. How to figure out the frequency USRP1 uses to digitize the signal? Is 64M samples/sec the default configuration? Thanks. On Thu, Aug 9, 2012 at 11:21 AM, Ed Criscuolo edward.l.criscu...@nasa.govwrote: On 8/9/12 11:09 AM, pengyu zhang wrote: Receiver's configuration code: rx =