[RFI] A note from Sangean about switching power supplies

Gary Smith wa6fgi at yahoo.com
Mon Jan 9 11:41:15 EST 2017


Took a quick look at the referenced file link, I see all kinds of 
"efficiency standards"  but not one word regarding RFI issues.

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 at 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.
>>> _______________________________________________
>>> RFI mailing list
>>> RFI at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/rfi
>>>
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>
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