Using the HP8970B Noise Figure Meter to measure a frequency converter

[@deBug67]

Great Explanation! Just what I needed. The manual is a bit opaque when dealing with converted signals but your explanation was easy as pie. Thank You!
Harry, SM7PNV

[@PastoriciciRobertYO4HFU]

Nice explanation! 73

[@Pointverse-zs4bs]

I got the noiae source, measuring wirh a SDR

[@electronicatutorial]

Did you know that you have to set Tcold to the temperature of your place before you do a measurement to have accuarate results?.