USRP output power

Does anybody know about output power of a USRP antenna, in voltage and
ampere ?

I’m trying to make a circuit connected with a USRP antenna port.
And, in the future, the human body will replace the circuit

Of course, it’s a kind of experimental.

So, If I send a sinusoidal signal with magnitude 35536 which is a
value allowed by USRP,
what voltage and ampere value does the antenna output?

Thank you for all in advance.