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[Towertalk] S units have been 6 db for a long time

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Subject: [Towertalk] S units have been 6 db for a long time
From: (Tom Rauch)
Date: Wed, 7 Aug 2002 06:45:04 -0400
> Well .. seems like the picture shows 48 dB makes S-9, or 5 1/3 dB per
> S Unit..... which as I seem to remember back when learning this stuff,
> that 5 point something dB was accepted as the S Unit, even though it
> could -- and would -- vary between manufactures. 

Most manufacturers  "tried" to use ~5dB as an S-unit, not six.

Six dB was NEVER an industry standard, as a matter of fact there 
never was any industry standard by any sense of the true meaning of 

Almost no receivers, except a few DSP based systems, are linear and 
hold the same dB/S unit over the low end of the scale...although many 
are reasonably close to 3-6dB per S-unit near the middle of the 

73, Tom W8JI 

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