It's pink noise, so there isn't 1 frequency.
The generally accepted value is 2-3 dB correction. So add 2-3dB to the reading for accuracy.
Regards,
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John Kotches
Contributing Writer Link Removed
This is alittle off topic but I think John can help me.
Does the Denon 3300 have a RF demodulator. I want to pick up a Laserdisc player with digital output but not sure if it will pass the AC-3 signal.
Thanks,
Jerry