The RFID frequencies according to wikipedia are:

The microwave RFID frequencies are outside the tinySA frequency range but the others are all within.
I do not know your RFID reader output power/antenna and I do not know which antenna/connection you will be using with the tinySA
I tried with a small telescopic antenna connected to the tinySA and a mobile phone with NFC reader and the 13.56MHz signal was very visible
But when using high power industrial UHF devices you may have to be careful not to destroy the tinySA
--
------------------------------------------
For more info on the tinySA go to https://tinysa.org/wiki/