24-03-2021, 02:14 PM
I've got a couple of Digitech branded UPS units (Jaycar link below), one in the shack for a PC and the other for backup power for our NBN modem.
Both generate S2-3 and higher noise across the HF spectrum. I've tried clip-on ferrites and toroids and much messing around but no change.
Anyone recommend a UPS for this type of use that doesn't generate crud??
Reading around it seems the pure sinewave type might be the type to go for.
650VA/390W Line Interactive UPS with LCD and USB
Both generate S2-3 and higher noise across the HF spectrum. I've tried clip-on ferrites and toroids and much messing around but no change.
Anyone recommend a UPS for this type of use that doesn't generate crud??
Reading around it seems the pure sinewave type might be the type to go for.
650VA/390W Line Interactive UPS with LCD and USB
Damien
http://www.vk3rx.com
http://www.vk3rx.com