[TowerTalk] [Bulk] Antenna to Shack Ground Connection

[Jim Brown]

On Tue,2/3/2015 8:05 PM, Jim Lux wrote:
> TUV is another.. 

TUV is European, Germany, I think. I don't know if there's reciprocity 
to North America.

Roughly 30 years ago, my partner and I participated in an effort within 
the community of sound system design consultants to get reciprocity 
between CSA (Canadian) and UL (US) testing labs, as well as the 
recognition of others like NRTL. It was a struggle, but we won.

That was a big deal, because in those days, UL test labs could get VERY 
expensive, thanks, in part, to some overzealous test engineers who 
seemed to think that small manufacturers were made of money. The guys at 
CSA were a lot more reasonable, so once reciprocity was granted, UL lost 
of a lot of business.

Before we started, the situation was so bad that although NEC required 
anything connected to the power line to UL Listed, almost no 
professional products carried listing. Think JBL, Altec, Sony, 
Panasonic, ElectroVoice, and a lot of smaller pro companies you've never 
heard of. After 5 years or so, nearly everything we needed to build 
systems WAS listed.

73, Jim K9YC