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Re: [RFI] A note from Sangean about switching power supplies

To: rfi@contesting.com
Subject: Re: [RFI] A note from Sangean about switching power supplies
From: Dave Cole <dave@nk7z.net>
Date: Sat, 7 Jan 2017 16:10:59 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
I took a quick scan of this, and did not see anything about RF emission standards... Hope I missed it...

Wouldn't it have been nice had they included RF emission standards along with the concern for CO2, and power use standards...

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 01/07/2017 01:07 PM, Gary Smith via RFI wrote:
Get your Astron transformer PS's while you can I suppose.

Mine is 40 +years old, (RS-35M) still running strong.

Gary...wa6fgi



On 1/7/2017 7:45 AM, Dave Hachadorian wrote:
USA/Global energy efficiency standards move manufacturers toward
switching supplies:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjI2qaUr7DRAhUWwGMKHfLgAksQFggdMAA&url=http%3A%2F%2Fwww.cui.com%2Fcatalog%2Fresource%2Fefficiency-standards-for-external-power-supplies.pdf&usg=AFQjCNEU4IknSirUlqodF9ickmB3fuHb7Q&sig2=m0yAtst8J6JU3FNiaRBMKw&cad=rja


Dave Hachadorian, k6ll
Yuma, AZ

-----Original Message----- From: Joe
Sent: Saturday, January 7, 2017 8:03 AM
To: rfi@contesting.com
Subject: Re: [RFI] A note from Sangean about switching power supplies

My first thought was, is it really a government law saying that they
MUST use that type of power supply?

Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 1/7/2017 9:01 AM, Dave Cole wrote:
The unfortunate side affect should be a substantial fine to Sangean.

Howard Lester wrote:
I’m looking through the online operating manual for a Sangean AM/FM
radio I’m interested in buying, and I came across this little note
in the Cautions section. I didn’t know about the “background” cited,
and I do find Sangean very responsible to print this.

Howard N7SO

VERY IMPORTANT PLEASE READ

Sangean suggests that you keep your AC Adapter at least 12 inches
away from the radio while listening to the AM Band.
Your Sangean Radio is powered by an AC adapter which is a
“switching” or “switch-mode” type. The DOE (Department Of Energy)
has a Federal mandate requiring all manufacturers to use this type
of power supply. This newer power saving technology has the
unfortunate side effect of causing interference to the AM radio band.
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