nige2000 Posted March 13, 2018 Share Posted March 13, 2018 hi im running a spectrum on an audio amplifier, i cant seem to get lower noise than circa -70-75db im i doing something wrong or is this the lowest i can expect? Link to comment Share on other sites More sharing options...
attila Posted March 13, 2018 Share Posted March 13, 2018 Hi @nige2000 In the Spectrum Analyzer with AD, set the Top to 0dBV or configure the range for scope inputs under Channel options to 5V. This way you will get 14bits of ADC on 5V pk2pk range. This 0.3V resolution will provide lower noise floor than 50V pk2pk range with 3mV resolution. You might find useful information in the following post: Link to comment Share on other sites More sharing options...
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nige2000
hi
im running a spectrum on an audio amplifier, i cant seem to get lower noise than circa -70-75db
im i doing something wrong or is this the lowest i can expect?
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