What jitter? What chipset? Are you trying to measure jitter in the transported signal, or in the carrier? The jitter of the RF generator? Then we get to: Long term jitter (drift), cycle to cycle jitter (much more difficult but do-able, depending on the frequency of the signal you are measuring), deterministic jitter (predictable using a network analyzer or even a diff TDR) - the list goes on.
Please try and be more precise as to what it is you are trying to measure.