Stanford Research Systems introduces their series of Rational Approximation Frequency Generators (RF) in this short video clip (~4.38 minutes along). Initially SRS present the advantages of utilising the RF against the alternatives available in the market however if you stay tuned from ~1.50 minutes the clip outlines the instrument’s major functions together with details of the reliability and purity of signal. From here it moves onto introduce modes; Amplitude, Frequency, Phase and Pulse/Blank Modulation as well a brief preliminary tour of the instruments front and rear I/Os with major controls. There is reference to Optional Extrasfor greater details please see the technical data. [youtube=http://www.youtube.com/watch?v=XvQiWguW0Iw&rel=0&start=32]