On 5/29/23 3:25 PM, Jim Brown wrote:
On 5/29/2023 1:20 PM, Pete Smith N4ZR wrote:
Frankly, I don't think there's any need - the author of the Wikipedia
article clearly was European (probably British) and apparently their
usage and ours are different.
Well done, Pete!
For about 25 years, I've been Vice-Chair of the AES Standards
Committee Working Group on EMC, a member of a half-dozen other WGs,
and a principal author of a half dozen Standards. These are
International Standards, so we often need to add clarifying language
like this to cover both differences in use of words between cultures.
It's not unusual for these documents to take 3-5 years to hammer out.
Our issues are not political, but simply achieving both a common
understanding of the technical issues involved, and getting the
wording to describe requirements in a manner that both they and the
technical issues are clearly understood.
A key example was use of "shielding enclosure" as the proper
termination point of cable shields, rather than talking about
"grounding" it -- a connection to Mother Earth does NOTHING to provide
shielding or the elimination of RFI.
same thing in the NEC (the building code, not the software) - there have
been several wording changes to make it more clear - that whole
grounding conductor (green wire) vs grounded conductor (white wire -
neutral) thing.
And the changes from "grounding" to "bonding"
It does take years. And I'm sure all hams use nothing less than 12 gauge
hard drawn copper for their 80 meter dipoles - you could get away with
14 gauge for 40 meters, because 66 ft is less than 75 ft.
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