Re: RF Quiet UPS


Allan Isaacs
 

By noisy I meant RF noise Simon. I don’t think mine has a fan at least if it does it’ll be temperature activated..

It’s not bad RF-noisewise unless the mains fails.

Spire charge about £12 delivery which makes it about £116, but I see them on CPC, Ebay and Amazon.

Spire are cheapest if you buy enough stuff to make the postage cost negligible but they hide their prices unless you have an account.

Al the UPS equipments I’ve had for repair are virtually identical in design so will all have roughly the same RF noise.

There’s a big jump in price as you move up the power scale as well as a big increase in weight and cost of replacement batteries which need renewing beyond 2 to 3 years.

Allan G3PIY


From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Simon Brown
Sent: 01 September 2017 18:41
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] RF Quiet UPS

 

Allan,

 

Does it generate any crud? I’m not worried about fan noise etc., it’ll live in the computer room. It’s the RF that concerns me.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Allan Isaacs
Sent: 01 September 2017 18:22
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] RF Quiet UPS

 

I’m not sure you’ll find such a thing Simon.

For what it’s worth mine is a Powercool 1500VA currently £86.75 + vat from Spire, runs my monitor/computer/Ethernet Switch/Broadband hub and desk lamp. It’s worked OK several times and once when the batteries failed it let me down but a couple of new batteries and it was OK. Not too noisy until the mains fails.

Allan G3PIY


From: main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Simon Brown
Sent: 01 September 2017 14:52
To: main@SDR-Radio.groups.io
Subject: [SDR-Radio] RF Quiet UPS

 

Hi,

 

Can anyone please recommend a UPS which is RF quiet? I have a APC whose square waves generate a lot of crud.

 

Simon Brown, G4ELI
www.sdr-radio.com

 

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