[TenTec] Tentec digest, Vol 1 #197 - AC power supply for scout

Sat, 19 Apr 2003 16:54:41 -0400

I agree in general with Larry, but have one comment. While switching power
supplies CAN generate RFI, some do and some don't. The Astron switching supplies
seem better designed in that regard. I use an Astron SS-30M with one HF set-up
and have never heard a peep! I also have a SS-11, I believe, running a VHF radio
and don't hear it either, but it's not tied to an HF rig so I can't be sure. QST
had an article evaluating a bunch of switchers a year or two ago, and many are
terrible. The Astron was at the top of the list and I have been happy with them
here.

You can't beat "big iron" 60 Hz supplies, until you have to lug 'em! The
switchers are also generally more compact. So I wouldn't necessarily give up on
them if space, weight and even $ are important.

73, Joel Hallas W1ZR

W1GOR wrote:

> Astron makes a number of good old linear (non-switching) power supplies that
> can handle your scout...
> Switchers are very good and light, but can cause RFI in your receiver.
> Linear power supplies are also good, but much heavier, and very quiet...  A
> lot of stations use some of the larger Astron supplies as a central 13.8
> volt power source with a Power Pole system.  That combination is hard to
> beat, in that it is a "set-it-up-and-forget-it" system... like your AC
> outlets, except that it provides 13.8 VDC for ALL of your 12 volt devices.
>
> 73, Larry - W1GOR
>
> > Message: 1
> > Date: Thu, 17 Apr 2003 12:14:02 -0400 (EDT)
> > From: [email protected]
> > To: [email protected]
> > Subject: [TenTec] AC power supply for scout?
> > Reply-To: [email protected]
> >
> > just wondering if anyone has a favorite other than the ten-tec switching
> supply that should be considered for using the scout.
>
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