[USRP-users] block parameters of UHD

Ron Economos w6rz at comcast.net
Fri Jan 24 04:32:24 EST 2020


You can get the gain capabilities with the shell command:

uhd_usrp_probe

Setting a specific power output is not possible unless you calibrate 
with an external measuring device like a spectrum analyzer. However, 
once you are calibrated, the internal attenuator is pretty accurate.

Ron

On 1/24/20 00:50, massoud pourmandi via USRP-users wrote:
>
> Dear colleagues,
>
> Let’s set the sinusoidal signal with amplitude =1 and set gain values 
> for USRP Sink and USRP source 10 and 20.
>
> First: what are the upper limits and lower limits of gain value? (I 
> just blindly set a number to it).
>
> Second: what is the relation between output power and amplitude. For 
> example, how can I set the parameters for a specific power?
>
> The schematic is attached.
>
>
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