[RFI] OT: Looking for a Primer on HID lighting

kd4e kd4e at verizon.net
Tue Oct 24 11:30:15 EDT 2006

> Most automotive and handheld HID units have shielded ballasts , short
> dilvery leads due to the  high voltages used,and are usually installed
> in a shield enclosure.
> I can not speak for stationary installations used in streetlamps but
> the majority of them are installed in metal or metalised enclosures as
> well.
> Do I hear them in my installations? I usually sweep my install with a
> Ft-817 and other than the usual AM rasp nothing noted on the ham
> bands.
> Adam Kb2jpd

Do I understand correctly that they area so new
that there is time-trial history?

One of the things we are discovering about many
devices is that they start clean and get dirty
over time from heat stress, mishandling, etc.

I am just curious if there is a context where a
Ham could monitor them in regular usage over time
and document consistent low-RFI.


Thanks! & 73,
doc, KD4E
... somewhere in FL
URL:  bibleseven (dot) com

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