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Date: Tue, 26 Nov 2013 13:28:41 -0500
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Subject: landing lights and filters
From: Jon Hadlich <hackmo15@gmail.com>
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Colyn- alot of the auto HID are noisy due to the voltage conversion in the
ballast. Be sure ground the ballast with a separate ground wire to a good
ground.The purists say all the way to the negative of the battery, but that
is prohibitive simply by the volume of everyone wanting their ground wire
to go to battery neg. I usually put a block near the battery for these. The
other noise from these ballasts is emitted. If they're mounted in the
wings, then the emitted noise might be far enough away, If they're closer
to the fuselage or getting on the antennas themselves you may need to
enclose them in a Faraday cage , grounded metal box.
For filters I use the lone star filters. They are proven and if I have a
strange noise they are every helpful. Plus I'm not smart enough to engineer
one like Pete.

-- 
Jon Hadlich
AI Systems
(541) 815-7381

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<div dir=3D"ltr">Colyn- alot of the auto HID are noisy due to the voltage c=
onversion in the ballast. Be sure ground the ballast with a separate ground=
 wire to a good ground.The purists say all the way to the negative of the b=
attery, but that is prohibitive simply by the volume of everyone wanting th=
eir ground wire to go to battery neg. I usually put a block near the batter=
y for these. The other noise from these ballasts is emitted. If they&#39;re=
 mounted in the wings, then the emitted noise might be far enough away, If =
they&#39;re closer to the fuselage or getting on the antennas themselves yo=
u may need to enclose them in a Faraday cage , grounded metal box.<div>
For filters I use the lone star filters. They are proven and if I have a st=
range noise they are every helpful. Plus I&#39;m not smart enough to engine=
er one like Pete.<br clear=3D"all"><div><br></div>-- <br>Jon Hadlich<br>AI =
Systems<br>
(541) 815-7381
</div></div>

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