Hi everybody, I want to test an HP 1170Q (33-50) Ghz mixer without it being connected to a spectrum analyzer, to test it for it being operational. I have a source in the (33-50) Ghz range to energize the diode in the mixer. Anybody know if and or how that can be accomplished with a minimal circuit. I would measure the output with a standard multi meter. I know that the test will not determine whether the range of (33-50) Ghz is according to spec, my purpose is to see if the mixer is operating at all. Also if you answer this, I am wondering if the construction of the mixer will show activity from frequencies outside the (33-50) Ghz range or if the mixer will by its diode component values be unable to receive frequencies outside the broad band range it was designed for of (33-50) Ghz . Thanks in advance!