[CQ-Contest] IC-756PRO

Bill Coleman AA4LR aa4lr at radio.org
Thu Feb 17 11:57:51 EST 2000

On 2/15/00 5:09 PM, Igor Sokolov at ua9cdc at dialup.mplik.ru wrote:

>What if DSP is 24 bit AD converter and 36 bit processor combo that supposed
>to have the dynamic range of around 140db (may not be exact figures, just
>taking them from memory)

The absolute dynamic range of a 24 bit A/D converter is 72 dB. (3 dB per 

Granted, you can put a controlled gain stage before the A/D, but that 
only allows you to move the span of the dynamic range around -- it 
doesn't give you more dynamic range for signals in the same passband.

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at radio.org
Quote: "Boot, you transistorized tormentor! Boot!"
            -- Archibald Asparagus, VeggieTales

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