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Total 3 documents matching your query.

1. Re: LF: + 7dB in 424uHz , convert to 2.5Khz ? (score: 1): Author: Andy Talbot <[email protected]>; Date: Sun, 11 Mar 2012 13:03:38 +0000; 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; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-03/msg00017.html (9,976 bytes)
2. LF: + 7dB in 424uHz , convert to 2.5Khz ? (score: 1): Author: "Graham" <[email protected]>; Date: Sun, 11 Mar 2012 13:56:39 +0100; 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.; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-03/msg00068.html (8,646 bytes)
3. Re: LF: + 7dB in 424uHz , convert to 2.5Khz ? (score: 1): Author: Andy Talbot <[email protected]>; Date: Sun, 11 Mar 2012 13:05:15 +0000; oops typo should read ... "for 848uHz, use 10.LOG(2500 / 848e-6) = 64.7dB " 'jnt; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-03/msg00413.html (10,513 bytes)

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