Volksmeter WinSDR ADC Bits Setting

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Robert Thomasson (rlthomasson@.........)
Thu, 31 Dec 2009 02:04:34 +0300



Date: Thu, 31 Dec 2009 02:04:34 +0300
Subject: Volksmeter WinSDR ADC Bits Setting
From: Robert Thomasson <rlthomasson@.........>

I'm confused about the ADC bit settings on my Volksmeter. Channels 1 and 2
(raw data) have a box for setting the ADC bits and this of course makes
sense to me. But then the integrated channels 3 and 4 also have a separate
box for setting the ADC bits, which evidently can be different than the raw
data channels. I *thought* that the ADC was done at the chip level and only
once per channel? And that the integration on Channels 3 and 4 was done by
the software on the raw data from Channels 1 and 2?

I don't understand how the Channel 1 data could be at 20 bits and the
Channel 3 data could be at say 24 bits? But they are evidently independent
of each other. I didn't find any discussion of this in the documentation
but if it's there could you point me in the right direction to find it? Or
provide a brief explanation of how the ADC works differently for the raw and
integrated data? Sorry if this is a dumbass question.

Thanks,

Bob Thomasson




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