[TowerTalk] Ground resistance
jim at audiosystemsgroup.com
Thu Jun 8 16:21:23 EDT 2006
On Thu, 08 Jun 2006 16:09:16 -0400, Roger D Johnson wrote:
>One of the problems is that "ground" means different things to
Yes. Our use of the same symbol for earth and signal common has led
to many serious misunderstandings. In our work on international
standards with the Audio Engineering Society (AES), we've had to be
very careful to avoid using the words "ground" and "earth" when we
mean a connection to signal common, and be very clear about the
meaning of every single word.
In his excellent workshops on EMC, Henry Ott, WA2IRQ, whose book is
considered the bible on EMC, talks about the hidden schematic
lurking behind the ground symbol.
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