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Re: Topband: ADC Overload from MW transmitters

To: topband <topband@contesting.com>
Subject: Re: Topband: ADC Overload from MW transmitters
From: shristov <shristov@ptt.rs>
Date: Tue, 20 Oct 2015 04:01:09 +0200
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Rudy Bakalov via Topband <topband@contesting.com> wrote:

> This is not true - higher sample rates are just as effective in 
> reducing overload as higher bit resolution.
...
> The higher sample rates reduces the probability of multiple signals 
> happening at the same time and overloading the ADC.


A higher sample rate alone
will not change the probability of overloading the ADC.
The percentage of meaningless samples will stay the same,
and consequences of overloading will not change.

A higher sample rate will help only if:
  a) it results in a higher equivalent bit resolution, and
  b) the input full-scale range is increased so to keep the equivalent LSB 
value at the previous level.


73,

Sinisa YT1NT, VE3EA
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