I have a question concerning this product here: 
We actually require an adapter between RJ45 and SMA to measure the coupling of fields inside an electromagnetic reverberation chamber to standard twisted-pair network cables (especially unshielded, but also shielded) using a balancing unit (one of those: http://www.prodyntech.com/products/baluns-and-accessories/) and a vector network analyzer (we prefer Rohde&Schwarz).
So what is the usable frequency range of the product? Will there be an upper frequency limit/corner frequencies, where the insertion loss increases drastically (of course there will, but at which frequency, 200 MHz, 2 GHz, 20 GHz?
Our frequency range of interest is mainly between 200 MHz and 2 GHz.
