Re: LF: + 7dB in 424uHz , convert to 2.5Khz ?

To:	[email protected]
Subject:	Re: LF: + 7dB in 424uHz , convert to 2.5Khz ?
From:	Andy Talbot <[email protected]>
Date:	Sun, 11 Mar 2012 13:03:38 +0000
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Subtract  10.LOG(2500 / 424e-6) = 67.7dB

So +7dB  in  424uHz =  -60.7dB S/N in 2500Hz

for 848uHz, use 10.LOG(2500/646e-6) = 64.7dB    (3dB difference, not
3.5dB as you state)

'jnt


On 11 March 2012 12:55, Graham <[email protected]> wrote:
> How  do  you  scale  these  uHz  d/b levels  to   other   bandwidth's ?
>
> If  the  b/w  is   848 uHz   is the   dB  level     + 3.5 dB  ?
>
> + 7dB  in  424uHz ,  convert to  2.5Khz   b/w?
>
> tnx -G.

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