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[CQ-Contest] Power Inverters

Subject: [CQ-Contest] Power Inverters
From: w7ti@jps.net (Bill Turner, W7TI)
Date: Tue Jan 9 07:11:21 2001
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On Mon, 8 Jan 2001 17:02:07 -0600, Georgens, Tom wrote:

 >However, I have seen these relatively cheap inverters in stores such as
 >Circuit City that claim 300 or 500 Watts output at 110V.  Since I have an
 >automobile handy that is sure to start and already has gasoline, I was
 >wondering if anybody out there has a judgement as to the suitability of
 >these devices.

I am told that to run a computer properly, you need a true sine wave output
inverter.  Don't know if that's just urban legend, but it's often repeated on
the RV newsgroups.  I used a Prosine 1000 watt inverter last year in my 5th
wheel while traveling around the US to power both a computer and a TS-690S and
it worked perfectly.  Prosine is a higher-end unit (about $600) with true sine
wave output, and it has excellent voltage regulation and will shut off if input
voltage drops below a certain level, leaving you enough battery to start your
car, theoretically anyway.  Never tested that feature, so beware.

73, Bill W7TI

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