[Elecraft] UPS Can Be a Noise Source

[Jim Brown]

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