[aprssig] UPS

[Michael Hatzakis, Jr MD]

I'll try to be helpful here... First, most UPS's do not run on 12v, they run
on 48v for the older and larger units and the newer one's use a lower
voltage, but still much higher than 12v required for TNC's and radios, so
you simply cannot use a UPS to keep batteries charged to run a TNC/Radio if
this is what you were thinking...

The best thing to do, and is what I do, is use a UPS to power your PC's and
other devices that NEED 115v, then use a large 12v power supply to power
radios and TNC's.  If you buy separate 12v batteries and keep them charged
using a West Mountain radio, PWRGate, to keep them charging, then when you
have a power loss, your UPS only runs those devices requiring 115v and then
the rest will automatically be powered on batteries using the PWRGate.  I
think this is a similar config that many I have heard on this list also use.

Michael  K3MH  Bellevue, WA

-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Dale Blanchard
Sent: Tuesday, December 26, 2006 8:27 AM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] UPS

Ben Lindner wrote:
> Hi All,
> 
> I have been given a 600VA UPS without any leads or anything else all it 
> needed was a new battery.
> 
> My questions is does anyone use one for backup supply for a TNC or power 
> a TNC with it. If so how have you done it and do you just connect the 
> TNC to the battery and plug the UPS into mains supply to keep the 
> battery charged.
> 
> Ben Lindner
> VK5JFK
___________________
all my TNC's run from 12 V DC and draw very littl power.
I dont understand what you are trying to do.
Dale


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