UPS with no RF noise?

[VK3RX]

I didn't know screened mains cable existed - well there you go

I can understand the discussion re earthing the screen. One would think that there is probably an AS specifying that.

I shall do some more noise sniffing to determine which cables are radiating.

I once used a CRO and AC cable clamp to investigate noise source cables in an outside inverter air conditioner