Hello, Ed
You offer.
> The ARRL's "RFI: How 2 find it & fix it" book has a fix for
> Neon signs and it's not ferrites!
Thanks for the accolade. A lot of people worked hard to make that book
happen. Thought I would mention that "The ARRL RFI Book" is the sequel to
that book. For info, see:
http://www.arrl.org/catalog/6834/.
The "RFI Book" has some important new chapters (Cable TV), some major
revisions to older material (the Electrical chapter was written by a
troubleshooter for Northeast Utilities) and has added the FCC information
and the "consumer pamphlet" -- info for the neighbors of hams with RFI
problems.
As with most ARRL books, it was put together by a number of people with
practical experince, not just the HQ staff with cute calls. :-)
73 from ARRL HQ,
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
860-594-0318
w1rfi@arrl.org
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> -----Original Message-----
> From: EDWARDS, EDDIE J [mailto:eedwards@oppd.com]
> Sent: Tuesday, January 11, 2000 11:25 AM
> To: rfi@contesting.com
> Subject: RE: [RFI] Neon signs?
>
>
>
> Okay, I should've looked this up first!
>
> The ARRL's "RFI: How 2 find it & fix it" book has a fix for
> Neon signs and
> it's not ferrites! The ARRL's RFI books are excellent
> resources for many
> EMI problems. I highly recommended that everyone add one to
> your library.
>
> The fix calls for an AC Line filter mtd directly at the
> sign's transformer,
> and also resistors (10-Kohm, 1-W) in series with each high
> voltage lead to
> the sign. Also, they mention ensuring a good ground
> connection for the
> transformer case. This is probably missing in many
> installations. A 3-to-2
> prong adapter, if used, would eliminate the needed ground.
>
> Lastly they suggest for tough cases: try winding thin magnet
> wire around the
> neon tube along it's entire length (6 or 7 turns per foot)
> and ground at
> each end.
>
> An electrician should probably do most if not all of the above work
> (especialy that last one!).
>
> 73, de ed -K0iL
>
> > -----Original Message-----
> > From: EDWARDS, EDDIE J [SMTP:eedwards@oppd.com]
> > I don't have any experience with neon signs. I'd start by
> contacting the
> > owners and find out who is the manufacturer of the signs. Then try
> > calling
> > the mfr for some help. They may have a fix they can send
> out to the shops
> > using their signs.
> >
> >
>
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