[Amps] article in Nature, modified Aurora via HF tspa

R.Measures r at somis.org
Sun Apr 17 12:27:40 EDT 2005


With the AGC off, even a 1db change makes a noticable change in S-meter 
deflection.

On Apr 17, 2005, at 9:21 AM, G3rzp at aol.com wrote:

>
> In a message dated 17/04/2005 16:23:09 GMT Standard Time, r at somis.org 
> writes:
>> With the AGC off, and the RF gain backed down, there's plenty.I don't 
>> see it. If you have a meter that at S9 is reading half scale, and you 
>> want to reset a signal level to1 dB, you need to be be able to 
>> resolve to about 0.5% of FSD. We're talking big scales and mirror 
>> backing here to set an analogue meter to that degree of repeatable 
>> resolution.
>  
> The attenuator doesn't come into it. Sorry Rich, but this 'gold 
> standard' looks a bit to me like a gilded lump of lead!
>  
> 73
>  
> Peter G3RZP

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org



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