Re: UPS Can Be a Noise Source

Posted by Jim Brown-10 on Aug 31, 2017; 9:56pm
URL: http://elecraft.85.s1.nabble.com/Wattage-Draw-K3S-100-vs-KPA500-KAT500-for-UPS-tp7633842p7633924.html

On 8/31/2017 11:35 AM, Tox wrote:
> I had a couple racks of APC
> SmartUPS 2000 units with daisychained batteries to give extended holdup to
> a couple of racks of telecom and server hw. No clue how RF noisy those
> units are, though.

All of the APC units for which I've seen spec sheets are FCC Part 15
Class A (the industrial spec, ILLEGAL to sell for residential use,
roughly 20 dB worse than Class B).

73, Jim K9YC

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