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[RFI] RFI Report Re: IOTA DLS-45 w/IQ4 Charger-PS

To: RFI List <rfi@contesting.com>
Subject: [RFI] RFI Report Re: IOTA DLS-45 w/IQ4 Charger-PS
From: "doc@kd4e.com" <doc@kd4e.com>
Reply-to: doc@kd4e.com
Date: Mon, 21 Mar 2011 20:13:54 -0400
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
RFI Report Re: IOTA DLS-45 w/IQ4 Charger-PS

The unit arrived today and I made up a cable set and set it to
work charging a 105 AH @ 20hr rated deep-cycle battery.

I was hearing really strong radio frequency interference on the
AM broadcast band 20 feet from the IOTA.  The IOTA was sitting
on a table inside of a 20' steel shipping container and the
AM-BC receiver was in another room.

The AM-BC receiver was plugged into the AC outlet so I brought
my little RFI-chasing handheld AM-FM-SW battery-powered receiver
into the same location as the other receiver and no RFI.

I relocated the AC cord of the IOTA from the AC outlet to the
"Surge and Noise Protect Outlets" of a Tripp-Lite UPS and the
RFI that was clobbering the AC-powered AM-BC receiver via the
AC line went away.

So, just as a heads-up for those considering the IOTA - be
prepared to provide line-filtering on the AC side as apparently
the device is not well-filtered there.


Thanks! & 73, KD4E
David Colburn http://kd4e.com
SE-GA Tailgate - April 9th, 2011
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