[USRP-users] B210 external clock and introducing drift

mleech at ripnet.com mleech at ripnet.com
Fri Oct 13 12:41:15 EDT 2017


Not sure what you mean by "streaming IQ samples through RF cable". 

But the external 10MHz reference steers ALL of the relevant clocks in
the device, including synthesizer reference clocks, ADC clocks, FPGA
clocks, etc. 

On 2017-10-13 12:33, Benny Alexandar via USRP-users wrote:

> Hi, 
> 
> I'm using USRP B210 for streaming  IQ data thru RF cable to my digital radio  receiver. I want to use an external clock generator and feed the clock to B210.  I see there are tow connector options to give external clock and PPS input.  My requirement is to give an external clock and introduce ppm drift in IQ sampling rate.  Do I know to give pps or just giving an external clock is enough ? 
> 
> If I introduce a drift an external clock generator will that change the sampling rate of IQ samples which I'm streaming thru RF cable ? 
> 
> -ben 
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