Thanks for all the helpful inputs, I think I should probably invest in a portable analyzer that is not so heavy and a sampler.
What I will use with what is available is the JFW 80db step attenuator, a coaxial cable connected to it with a short piece of wire on the end going through a resistor to the coaxial shield, one wire will have a 400 ohm resistor and another 200 ohm. I might also bring along an oscilloscope to be on the safe side as it has selectable 50 ohm inputs. Based on what I gather so far with my setup I should be ok if you agree although it could be better. If anyone suspects a hazard with my setup which could damage the 8566 let me know. Thanks
