[USRP-users] How to digitally tune the frequency in B210 two RX channels

Marcus D. Leech mleech at ripnet.com
Tue Oct 6 10:13:01 EDT 2015


On 10/06/2015 08:11 AM, Yu-Hsuan Chen via USRP-users wrote:
>
> I know there is only one synthesize in B210. I wonder how can I tune 
> the two RX in different frequencies within 56MHz? Does the 
> uhd::usrp::multi_usrp::set_rx_freq simply work?
>
> For example, the RX1 frequency is 1.5e6 and RX2  is1.55e6
> Can I just set like following
> set_rx_freq(1.5e6,0);
> set_rx_freq(1.55e6,1);
>
>
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> USRP-users at lists.ettus.com
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See the tuning notes here:

http://files.ettus.com/manual/page_general.html

What I would do is use MANUAL policy, and tune the LO to some convenient 
mid-point, and use the DSP tuning to extract the two desired
   channels.

Also, I assume that 1.5e6 is just an example?   The B210 cannot tune 
that low.


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