REL #28 CMU200 as Audio Meter

The Rohde & Schwarz CMU200 is quite an amazing audio meter, supporting measurement of THD and noise, multitone frequency response, and SINAD. This video talks about the B-41 audio board option for the CMU, discusses the measurement techniques and shows actual measuring experiments. 00:51 Three measurement modes: AF, RF receiver tests, and RF transmitter tests 02:35 The CMU audio measurements functions 06:36 Different types of distortion 08:11 Required hard- and software options 11:38 A closer look at the CMU-B41 module 15:38 Audio generator specs 17:13 Analyzer & Generator: theory 21:02 Analyzer & Generator: experiments 27:40 Multitone: theory 29:29 Multitone: experiments 35:03 THD: theory 36:31 THD: experiments 46:57 SINAD: theory 52:12 SINAD: experiments 1:05:19 Conclusions