[TowerTalk] RE: POWER LINE NOISE SHEETS

[K6TFZ@aol.com]

Straight from the Los Angeles Department of Water and Power (excluding power 
line equipment) the following can cause interference:
    doorbell or chime transformers      electric blankets
    heating pads                        fish tank heaters and pumps
    light dimmer switches               photocell lights
    flashing decorative lights              refrigerator butter keepers 
(thermostat)
    ultrasonic pest control devices     furnace thermostats
    fluorescent lights and starters     mercury vapor lamps
    microwave or conventional ovens     appliance switches (dishwashers, etc.)
    water bed heaters                   sun lamps
    video games                     electrical toys
    smoke detectors                 electric fans
    loose fuses or breakers             neon signs
    small motors                        electric fences
    sewing machines                 air conditioners and purifiers
    bottle warmers & baby wipe warmers  germicidal lamps
    ultra-violet lamps                  water heaters
    sign flash                          gas range and dryer igniters
    gas furnace blowers                 garbage disposals
    door opener transmitters                scanner receivers
    home elevators                      car and truck ignitions
    green plugs                         cash registers, calculators, adding     
                                    machines
    "The device must be disconnected from its power source, not just turned 
off!"

Many of the above items seem obvious to us, some are not. The above was 
compiled by Paul Charbonneau, W6BZH, Interference Inspector, 
Telecommunications Section, Information Technology Services, Business Unit of 
the Los Angeles City Department of Water & Power, phone 213-367-8292.

He also cites Part 15 FCC Rules and Regulations: "It is unlawful to generate 
electrical interference that prevents reception of commercial broadcasting or 
two-way communication. It is also unlawful to place such interference, 
willingly or unknowlingly, on the lines of a public utility."

Hope this helps.   Jeff, K6TFZ

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