On 10/14/2015 10:25 PM, Ted Eckert wrote:
It is fairly common to run into issues where one product causes
interference where it shouldn’t.
http://www.compliance-club.com/archive/old_archive/Bananaskins.htm
Do note that the archive only covers up to 2004. I've had occasion to
cite entry 3.
I suspect the relative scarcity of reported problems may be ascribed to
proactive standards that are revised when the need becomes evident; one
reason I got a contract in 2004 -- and why it was extended.
Those of us who are Amateur Radio operators will have perhaps gotten
involved in the myriad issues of new technology versus existing. I filed
comments in the FCC's rulemaking on BPL (UK:PLT/PLC), which agency in
the past has acted as if it had gotten orders to ignore some kinds of
complaints -- a non-technical issue, eh?
Some complaints answer the "why margin?" question, if possibly for a
different reason than why we sometimes want it.
About 15 years ago, residents of a New Jersey neighborhood started
complaining about hearing a local AM station (really local: 10KW in the
middle of the development) on their answering machines and
telephones.The odd thing was that this apparently coincided with its
switch from an "Easy Listening" music format to Korean language
evangelism (I suspect a power increase as well). In any case, when the
customer ordered equipment for that neighborhood he could (and IMO
should) have considered proximity of pole-mounted power and other wiring
to a high power RF source not anticipated by standards-writers.
Cortland Richmond
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