Issues using computer

I search endlessly for low wattage low power led monitors preferably 12vDC.  Any one found one please?
With all the fuss about saving the planet no one can be bothered to put the WATTAGE on the SPEC!!!

 https://www.sust-it.net/energy-saving/monitors

I don't find "low power" to necessarily be a good thing.  For example, in stereo audio amplifiers, Class D amps will use far less power than Class A amps, but are deadly to me because they use pulse width modulation!  So it puts out a huge amount of RF that you don't get with the more power-hungry models.

I went through my own computer monitor trade study a couple years ago, and ended up with a current (at the time) BenQ GW2870H (28" diagonal), which runs on AC power and uses a maximum of 27 watts.  It was the most tolerable of the 7 monitors I tried in my latest monitor upgrade.  But to make it tolerable, I have to feed it a non-native 1360x768 resolution, and use a VGA cable.

Marc
 

I agree that the bio impact is not necessarily linear but 12vDC lets you use totally clean DC. Radiations is measured in watts so its a very good start.  My LG is brill and only 10watts and 22 inch. Why don't they make them like this any more.  The winners of awards are no where near as efficient as this thing. It shows that it can be done.

Marc Martin wrote

I don't find "low power" to necessarily be a good thing.  For example, in stereo audio amplifiers, Class D amps will use far less power than Class A amps, but are deadly to me because they use pulse width modulation!  So it puts out a huge amount of RF that you don't get with the more power-hungry models.

I went through my own computer monitor trade study a couple years ago, and ended up with a current (at the time) BenQ GW2870H (28" diagonal), which runs on AC power and uses a maximum of 27 watts.  It was the most tolerable of the 7 monitors I tried in my latest monitor upgrade.  But to make it tolerable, I have to feed it a non-native 1360x768 resolution, and use a VGA cable.

Marc

That reminds me of when I tried to get into using an electric guitar but couldn't because the amps and guitar were so bad that I was super ill in minutes. It sucks cause I really wanted to do some cool things with that never mind the fact that just about all microphones are some the deadliest tech I can use. I don't know why but if I had to come up with the number one worst electronic for me to use that will get me sick in record time it's a microphone from anything. Not sure what that's saying about this but it's a clue.

On the PC stuff though I just ordered the Titan RF shielding fabric that should cover the whole tower and seems like it would do well. I'm not giving up an entire flipping PC that easily I love and can finally play with my friends on that I spent so much on. I'll make this work somehow. I'll also report back on how well that fabric does.

I still say low wattage. Try a "slim client" mini PC fro Aliexpress. They are based on mobile phone technology. Less than 12 watts and will out perform your tower. It must be fanless and have a SSD. Use a linear regulated 12vDC power supply.  The thing is the size of a tape cassette and silent.  Try measuring  the two with meters. These things are the law in EU for Government employees.  Save the planet at the same time too.  They are not much more than 100 bucks.  

Just coming back to say that Titan RF fabric works very well. Wonder how well it'll work over the router. Which is very tricky to deal with since comcast has no option to turn off wifi on the thing and the person I live with doesn't believe this is real.

Silver ali baking foil works better as it is solid and conducts heat.  It will even block radio. The problem is every wire will be emitting wifi if you have it on so you need ferrite choke snap on filters as well. If you go into setting you can turn wifi off. In France every box has OFF switches by law and their advice is to turn it off at night. Mobile phone signals and wifi must be turned down if someone complains. Seems reasonable.

> Just coming back to say that Titan RF fabric works very well. Wonder how well
> it'll work over the router. Which is very tricky to deal with since comcast
> has no option to turn off wifi on the thing and the person I live with
> doesn't believe this is real.

You might want to replace the Comcast router, as even if you require wi-fi
for the person you live with, there are less harmful routers on the market.
The current Xfinity X1 modem broadcasts 5 wireless signals:
-- 1 2ghz for you
-- 1 2ghz wireless hotspot for the neighborhood
-- 1 5ghz for you
-- 1 5 ghz wireless hotspot for the neighborhood
-- 1 home security system signal (even if you don't need that)

Replacing that with a router that has just 1 wireless signal would be a big
improvement. Even better if you can turn the strength of the signal down
from the online interface, and turn it off at night.

Marc

If you are looking for a low wattage computer monitor this may help.

https://www.energystar.gov/most-efficient/me-certified-computer-monitors

Can you track down a link to this "EMF-free keyboard"  please?  I would love to find out more.

Do trackball mice have a lower FRI cloud?

> Can you track down a link to this "EMF-free keyboard"  please?  I would love
> to find out more.

This is the keyboard I was referring to.  But like I said, the person who tried
it did not like it.

  https://productivenetwork.ch/ecommerce/16-flightmode

Marc

Sadly it does not seem to lower the RFI from the keyboard and rather than use a wire it uses light like Lifi does.  It is only a MW free Emission Free Keyboard and not any other frequencies.

"This amazing new keyboard with built in mouse uses infrared signals to transmit to your computer WITH NO INFRARED EXPOSURE TO THE USER. There is an infrared transmitter that sends the signal via a beam from the back of the keyboard to the receiver. The only way you can get exposed is if you choose to put your hand in between the beam at the same time as typing or using the trackball which would be virtually impossible to do even if you wanted to!

There are 2 types of receivers for you to choose from, depending on what your computer or laptop is like. One of the receivers you can plug into a USB connection and the other you can plug into a P/S2 connection. Please remember to indicate which one you need when you place your order.

When you set up your new keyboard it needs to be in line of sight of the receiver."

The keyboard reduces your electrical field exposure by over 95%. It work up to 10 metres from your screen.

Thanks for that but I am AM radio wave sensitive so its not for me.  Very interesting though.

IR connection is likely to be much much safer for link ups as we have evolved to be tolerant of the dangers from light.  Hence I presume their would be no health risks.  I await the mass introduction of Lifi so I can go visiting people again.  As it would be battery powered it may be they have found ways to lower power consumption there too which would lower the RFIs which I am finding so hard to avoid. I wish some one could measure one with a radio or the producers could come up with some specs. They could be on to a winner but don't seem to know what the are doing sadly.

   No one seems to list a low power consumption wired keyboard. Typically they seem to use 1W so they say.  I find it hard to believe that wireless ones use any thing like as much as they run on rubbish batteries for a long time.  Have you ever seen a keyboard with options for both wired and wireless? If you could cut the USB power in and run on the batteries it might prove less dirty perhaps? This data input is my biggest problem now as my computer rig does not have emissions that bother me.

Thanking you again. Very interesting.

There is a cross over between Micro waves and IR in the EM spectrum,  so a sharp seller could just be putting a bit of spin on one of these things when it is really just a MW connection.  

That one runs on 56 KHz and cost a fortune.

On eBay;

Belkin Universal Wireless PDA Infrared Keyboard (F8U1500EA)   is £3

Genuine Telewest Active Digital IR Keyboard Remote Control (KW 1271/00F) is £10 inc postage

IR Infrared PC Keyboard Accurate fast Laptop PC keyboard Mouse  £16
https://www.ebay.co.uk/itm/263116330916

If any one buys one would you please test with a radio and tell me if they are better or worse than  USB wired? Thanking you.

Has any one got ideas as to how one can make/design a no radiations monitor. I would love to hear any good ideas and think this could be a huge  future market for some one. 80%  of professional users have the "syndrome".   Lets save the lemmings. Most work users need only monochrome and it should be possible to make very low mono panels I would have thought. Correct me if I am wrong please?

http://www.electronicdesign.com/displays/designing-low-power-displays-battery-powered-iot

low  RFI  computer monitors????

http://ac6v.com/comprfi.htm


http://www.arrl.org/computer

http://www.juliusmedia.com/video-matters-rf-interference-from-led-screens-is-a-big-problem/

http://www.fuseco.com.au/rfi_emc

http://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/hr/1990/03/page75/index.html

http://www.naic.edu/~phil/rfi/hilltop/hilltop.html

http://www.randombio.com/interference.html

MIL-STD-461E (EMI/RFI Emissions)

FCC Part 15 (Commercial EMI/RFI Emissions)

CE Marking (European Electrical Safety, EMI/RFI Emissions)

PC keyboard generates a considerable amount of RFI despite its benign looks. This is because it contains a microprocessor on board which runs off a clock in the 3 MHz range.

Push-button keyboard assembly with EMI and RFI-shielded multiple individually-replaceable switch modules


http://www.google.com/patents/US4814566

Shows how it has been possible but is not being done. WHY?