We have a N9340B hand held spectrum analyzer, I want to know if i can use it to detect the clock frequency accuracy such as 100Mhz of PCIe speed. Specifically, what is the input signal range? Can i use a coax cable to connect to the clock pin, the clock pin has 3.3V LVDS clock output. The spec says the input limit is 50VDC, but I am not sure if it is ok to do so. Also, can I input a AC coupling signal into this analyzer, like +/-100mV, 100Mhz.