I'm surprised by the acceptance of these supplies in the ham community. 10+
years ago, SMPS manufacturers may not have had a good understanding of EM
compliance. Today, there's no excuse. It takes no more manufacturing cost
to design and produce an RFI-free switch-mode supply than it does a supply
that moves the problem around +/- a few kHz.
Paul, W9AC
----- Original Message -----
From: "Bob Turner" <n2scj@msn.com>
To: "Bert Almemo" <balmemo@sympatico.ca>; <doc@kd4e.com>; "'RFI List'"
<rfi@contesting.com>
Sent: Saturday, May 21, 2011 3:44 PM
Subject: Re: [RFI] Power Supply - Noise Frequency Adjust?
> The "noise freq adjust" feature has been available for quite some time
> now.
> Perhaps 10 or more years.
>
> -----Original Message-----
> From: Bert Almemo
> Sent: Saturday, May 21, 2011 1:41 PM
> To: doc@kd4e.com ; 'RFI List'
> Subject: Re: [RFI] Power Supply - Noise Frequency Adjust?
>
> Interesting but not very smart. They are treating the symptoms and not the
> cause. The person in possession of the power supply can adjust the
> frequency
> but how about other hams/people who has the same interference??
>
> 73 Bert, VE3NR
>
>
>
> -----Original Message-----
> From: rfi-bounces@contesting.com [mailto:rfi-bounces@contesting.com] On
> Behalf Of doc@kd4e.com
> Sent: Saturday, May 21, 2011 11:20 AM
> To: RFI List
> Subject: [RFI] Power Supply - Noise Frequency Adjust?
>
> Here's an interesting concept. Instead of eliminating the RFI they give
> you
> a control to move it off the desired frequency?
>
> There offer three models, the I, II, and III, this one is the latest, the
> III.
>
> PS30SW III 30A 13.8vDC Switching Power Supply
>
> http://www.radioinc.com/oscmax/catalog/product_info.php?manufacturers_id=73&;
> products_id=2322&osCsid=38da2b04916b93542eb3d444c90318d2
>
> WDYT?
>
>
> --
>
> Thanks! & 73, KD4E
> David Colburn http://kd4e.com
> Have an http://ultrafidian.com day
> I don't google I SEARCH! STARTPAGE.com
> Shop Freedom-Friendly http://kd4e.com/of.html
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