That was good, especially the last parts.
Tnx, 73
Dale, k9vuj
On 18, Feb 2014, at 15:21, CR <ka5s@earthlink.net> wrote:
> When I retired from the Army and went to work at Wang in 1983, it was in
> their TEMPEST audit lab, but we did FCC audits, too. One new product -- we
> called it the Fredwriter -- was quite obviously above the Part 15 limits, and
> after I reported this, it was only a few weeks later that I got an angry call
> from a factory manager in China:
>
> "How come you close down my factory!?"
>
> I tried to tell him all I did was measure things, but I got the ball rolling
> to find out what had actually happened. The case was upper and lower
> clamshells coated with copper bearing paint and snapped together, then
> secured with screws. The Chinese factory had some problems getting the halves
> to latch, so the factory manager talked to his buddy at the plastics factory
> and got cases made MINUS beveled interior features where the copper made
> contact, top to bottom...
>
> Something a bit like this -- likely unintentional and unasked for -- seems to
> have happened to a different firm where I worked later, when a fairly recent
> (this century) FCC Enforcement bulletin reported that one of its wireless
> remote controls was exceeding Part 15 radiated power limits. Interestingly
> enough, I had, back in the day, devised a modification there, a piece of
> copper tape inside the case, to REDUCE the radiated power from a similar item
> my then-employer was importing.
>
> Scenario: Some guys in an Asian factory...
>
> First guy: "Hmm. What's this doing? Let's leave it off."
> Second guy: "Hey! It works better, too!"
> Production line supe: "Ship it!"
>
> Anyone doing FCC audits? Heh.
>
> Cortland Richmond
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