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Discussion of precise time and frequency measurement

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Re: [time-nuts] The home time-lab

HM
Hal Murray
Fri, Jul 8, 2016 1:43 AM

So, what to do?  I've been looking at UPS devices, and I don't even
understand enough to waste my money on a bad one.

A UPS has 2 major properties.  One is the amount of power it can put out.
The other is the battery size which translates into how long it will last.

The low cost market is for a unit that will last long enough to let a PC and
friends shut down cleanly.  The battery isn't very big.  It will cover
typical blink-the-lights glitches.  Beyond that, the time is measured in
minutes rather than hours.

--
These are my opinions.  I hate spam.

bob@evoria.net said: > So, what to do?  I've been looking at UPS devices, and I don't even > understand enough to waste my money on a bad one. A UPS has 2 major properties. One is the amount of power it can put out. The other is the battery size which translates into how long it will last. The low cost market is for a unit that will last long enough to let a PC and friends shut down cleanly. The battery isn't very big. It will cover typical blink-the-lights glitches. Beyond that, the time is measured in minutes rather than hours. -- These are my opinions. I hate spam.