Re: Can't get below -46 dB

Hi,

-48bB is the theoretical limit for a 8bit ADC. There are two channels and a bit of filtering but it will not help that much.

Stefan

Am 16.04.2013 07:35, schrieb Luca Bedogni:

Hi I have an Elonics 4000 USB receiver, and I-m trying to do some measurements on the digital television received power in my area. Everything works fine, except that the received power is never lower than -46 dB, even on channel which are not occupied. I was expecting to get values like -120 dB or something similar, instead in my measurements the lowest point in any portion of the spectrum is circa -46 dB.

Am I missing something?

Thank you Best