On 7/31/2014 7:03 PM, Jeff Liebermann wrote:
On Thu, 31 Jul 2014 10:19:38 -0400, Jerry Stuckle
wrote:

And of course there's the now infamous hair salon in San Antonio, Tx,
with the fluorescent light ballasts that caused problems to AT&T Cell
phone network (and it seems this is not the only business with this
problem).

The hair salon refused to do anything about it so they got a letter
from the FCC.
http://www.commlawblog.com/2013/10/articles/enforcement-activities-fines-f/bulbs-behind-bars-ii-fcc-goes-after-hair-salon-lighting-fixture/
Seems to be a common problem. Here's one in Smog Angeles:
http://www.pcworld.com/article/2095940/la-buildings-lights-interfere-with-cellular-network-fcc-says.html
My guess(tm) is electronic ballasts.


Yes, I know the story, Jeff. That's why I quoted it. And it's not the
only business which has had problems with GE ballasts. GE has claimed
they've fixed the problem with additional filtering. We'll see.

My favorite was GPS interference from TV amplifiers:
http://gpsworld.com/the-hunt-rfi/
I was not involved in either the cause or solution.


This does not surprise me. There have been a number of problems with
such units, typically from overseas. Many of them are sold in the U.S.
without the required FCC Certification - which puts an unwitting owner
at risk as well as those around him/her.

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Jerry, AI0K

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