effective output/input voltage?

[fogandflower]

I use signal generator as input signal source for chip test,the DUT matching resistor should be 50ohm for single ended and 100 ohm for differential.
However i found the DUT input resistor value is 134ohm (SMA input) , what is the effective input voltage? signal generator freq=440M, level=0dBm

 

[crutschow]

It's better to measure the signal value, then to calculate it.