|Subject:||Re: [Discuss-gnuradio] USRP Tx Rate Conversion|
|Date:||Tue, 15 Apr 2008 15:14:45 -0400|
Well, if you don't use your x8 upconversion, you can get away with aOn Mon, Apr 14, 2008 at 8:03 PM, Wireless Monster
> Hi All,
> I am new to gnuradio and the USRP board and I have a basic question.
> I want to transmit a GSM signal. Once It is encoded I have a 270833.333
> symbols/sec signal. Then, it is up-converted (x8) and GMSK filtered, so I
> get a 2.1666 Ms/s complex signal.
> Now the question: How to adapt this rate to the DAC converter on the USRP
rational resampling (I believe).
Taking 270833.333, and upconverting by 3x makes the sample rate
812500. If you then rationally resample this by 16/13, you get a nice
1Msps signal which you can upconvert by a nice power of 2 for the
Try it out and let us know how it works out?
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