You mentioned noise. Turn off the CRT or any other television device as it emits a high frequency noise that the microphone will pick up and add a false reading to the RTA.Thanks again JohnM.
I can switch it to display input or output.Would the output level be a better indicator of the noise level?
I notice when I turn on my tv(older HD CRT)the noise level goes from -105dB to -96dB.I'm losing almost 10dB just to noise with the tv on!:unbelievable:
The DEQ manual indicates it has >113dB dynamic range with a balanced input.My lexicon MC-1 indicates a dynamic range of a minimum of 105dB.It looks like the noise level is about right minus the noise from the tv.
