[USRP-users] TX and RX paths sharing a coherent LO

Rickard Radio rickardradio at gmail.com
Wed Oct 8 13:04:12 EDT 2014


Sounds good!

Does this mean it really shares the same LO, i.e., also with the same and
uniquely occurring phase noise shared to all paths?! (I want that!)

Regards,
Rickard



On Wed, Oct 8, 2014 at 6:54 PM, Marcus Müller <usrp-users at lists.ettus.com>
wrote:

>  Hi Rickard,
>
> all the LOs are synthesized from the same motherboard reference, so Q1 is
> answered with "you get that for free".
> Q2 is "yes".
> Q3 gets the answer "if you want to use definite times when sampling, use
> the timed commands feature of UHD".
> :)
>
> Greetings,
> Marcus
>
> On 08.10.2014 18:48, Rickard Radio via USRP-users wrote:
>
> Dear usrp-users,
>
> I am interested in coherently LO-mixing different TX and RX paths for some
> experiments.
>
> Q1: Which options exist to use the same(?) coherent(!) LO for different TX
> and RX paths on the USRPs (N210 and/or B210)?
> Q2: Related, with the N210s and the MIMO cable, can I obtain and use a
> coherently shared LO for different TX and RX paths?
> Q3: Follow up  - do I need something else or in addition ?
>
> Regards,
> Rickard
>
>
>
>
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