Earl and Jim,
Part 18 is for ISM devices, as you know. Included in that group are
lighting devices that operate at 13.56 MHz. Surprisingly, I am not aware
of any significant QRM problems to 20m ops from those devices, but I don't
know how widespread their use it.
As for the switching power supplies for patio lights and such, I agree
with Earl that Part 15 would apply. Nearly all switchers made today are
well above 9 kHz in operation. If only the sleazy makers of those things
would do something about the harmonics.
73, Dale
WA9ENA
"Morse, Earl (E.A.)" <emorse@ford.com>
Sent by: rfi-bounces@contesting.com
09/10/2008 01:08 PM
To
<rfi@contesting.com>
cc
Subject
Re: [RFI] FCC Class A& B Regs/ was: Low Voltage Patio Lights
Its my guess only as I never did any Part 18 work.
I don't believe that any device intended for residential use would be
covered by Part 18. I would still guess that Part 15 Class B would be
applicable as long as the SMPS was operating at higher than 9 kHz.
Good to see you in the Sprint log this weekend Jim and on 3 bands no
less.
Earl
N8SS
------------------------------
Date: Tue, 09 Sep 2008 10:31:53 -0700
From: "Jim Brown" <jim@audiosystemsgroup.com>
Subject: Re: [RFI] FCC Class A& B Regs/ was: Low Voltage Patio Lights
To: "RFI List" <rfi@contesting.com>
Message-ID: <20080909173154.EFFA157CC2@gw1.nlenet.net>
Content-Type: text/plain; charset="us-ascii"
On Mon, 08 Sep 2008 10:08:35 -0700, Robertson wrote:
I believe that lighting products fall under Part 18, and which
appears to be broad as a barndoor. I hope someone will correct
me if I'm wrong.
73,
Jim K9YC
------------------------------
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