Tag Archives: Electromagnetic Interference

Fact Check : Heavy Gadget Use Killing Kids With Radiation?

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A WhatsApp message about heavy gadget use KILLING kids with radiation has gone viral.

Find out what’s going on, and what the FACTS really are! 🤔

 

Claim : Heavy Gadget Use Is Killing Kids With Radiation!

This is the WhatsApp message that has gone viral, and is being furiously shared by alarmed parents.

🙏✍️
A very IMPORTANT & SERIOUS message.
Please kindly read till the end with out skipping.

Most of your kids will be attending online classes and addicted to gadgets, please be very careful. I am writing about the current happening.
My very close, best friend’s younger sister son is studying
12th standard a very bright student from his childhood,and only son to my friend’s sister.

His online classes starts daily at 10am so laptop is on by 9am. Due to peer school pressure with the online classes going on, he used to either be on laptop or mobile atleast till 10pm daily, No physical activity at all, no one to play due to COVID-19 fear and being single child,in their family.

On Tuesday 27/10/2020, morning, he was saying he was not feeling well, 2 days prior to that he had mild pain on his left hand. No one took that seriously. On Tuesday, he was saying he doesn’t want to attend on line classes and wanted to be with parents’. Parents were surprised and asked him to take rest. He tried to sleep but was not able to, he asked his father not to go to office. His father asked if we should go to hospital, child said everywhere there is corona which hospital to go, I will be alright after a good sleep. He asked his father to go to work. He said he was very hungry and asked his mother to feed him dosa. He again tried to sleep but could not, then around afternoon, he called his father to come home immediately and take him to hospital. His father came home within 15 min and the son came and hugged him and said take me to hospital.

By the time he started the car, child collapsed. They rushed to a hospital 4 km away and doctor checked for pulse it was not there. They tried CPR and the heart started to function. They took all scans and found the child was brain dead.They tried all medication till Saturday31/10/2020 morning ,and finally decided to remove the ventilator.

He is now no more.
‼️A case of BRAIN DEAD‼️
Pathetic thing is that hospital has handed over the body to police since the child was unconscious when brought to hospital and in his teens. They will hand over the body only after postmortem and corona test. So not sure if they would get it today 31/10/2020, or tomorrow,01/11/2020.

Doctor said this is 05th such case during
The past 20days, Heavy usage of gadgets, radiation has affected the brain and stopped the supply of oxygen.

Use GADGETS sparingly, Avoid earphone/headset to the maximum extent possible.
🙏 Humble request to all parents, guardians, please take care of your kids, teenage boys, girls,Ask them to read only hard copy books and no gadgets except for attending classes
I felt this is very useful important message, so Iam forwarding to all my what’s app contacts, relations,well wishers,all near and dear.
🙏A very humble request to all, kindly forward this message to all your
Contacts and there by save Precious “LIFE”
✍️🙏🙏🏼🙏🏻

Forwarded as Received

 

Heavy Gadget Use Killing Kids With Radiation : The FACTS!

NO, heavy gadget use is NOT, repeat… NOT killing kids with radiation!

Here are the reasons why this is yet another fake story being circulated on the Internet to spread FUD (Fear, Uncertainty & Doubt).

Reason #1 : No Evidence The Case Even Exists

The story appears to originate in India, and is quite specific that the student died on 31 October 2020.

However, we could not find any reference to any Standard 12 student in India, being taken off the ventilator after being pronounced brain dead in October 2020.

While that does not mean that the case does not exist (India is a HUGE country), there is currently no evidence that this case actually exists.

Photo Credit : Idrees Abbas / SOPA Images / Sipa USA

Reason #2 : No Evidence Gadget Radiation Is Killing Kids

The claim that the doctor said that it was the 5th case during the past 20 cases is preposterous.

If that was true, it would have been major news, and would have been discussed in hospital mortality and morbidity conferences, and certainly covered by the mainstream media.

Yet, there is no mention of gadget radiation killing kids anywhere in the world.

Reason #3 : Radiation Cannot Stop Supply Of Oxygen

When brain death occurs as a result of ischaemia – the lack of oxygen supply to the brain, that is often due to :

  • bleeding in the brain from an AVM, or insult to the brain
  • blood clots blocking blood vessels in the brain
  • cardiac failure reducing blood flow to the brain

While high doses of radiation can cause brain damage, radiation per se cannot stop the supply of oxygen to the brain.

As the student was said to have no pulse on admission to the hospital, his brain death was likely due to a complete lack of blood supply to the brain after heart stopped beating.

Reason #4 : Electronics Have Low Radiation

All electrical devices produce small amounts of electromagnetic radiation. That means everything from your microwave oven to your television, not just laptops and mobile devices.

They all have to comply with the laws regarding electromagnetic radiation. Not because it’s dangerous to us, but because it would interfere with other electronics in your house.

Reason #5 : Electronics Have To Comply With SAR Limits

The US FCC limit for RF radiation from a mobile phone is 1.6 watts per kilogram, while the EU sets a higher limit of 2.0 watts per kilogram. Practically all smartphones have much lower SAR values (head) :

With smartphones emitting significantly lower RF radiation, it is unlikely for them to have any effect, much less kill kids or turn their brains into mush.

Reason #6 : RF Radiation Is Non-Ionising

The type of radiation emitted by electrical devices is radio frequency (RF) radiation, which is a type of non-ionising radiation.

Non-ionising radiation do not have enough energy to knock electrons from an atom, which means it cannot create free radicals that can damage our cells.

In fact, RF radiation has lower energy than visible light and infrared (heat) radiation!

So it would be quite impossible for RF radiation to kill anyone by destroying their brains.

Reason #7 : Earphones + Headphones Reduce Exposure

Earphones and headphones actually reduce your exposure to RF radiation from your smartphone.

That’s because they allow you to listen to calls and music, without putting the smartphone close to your head.

Those who are paranoid about exposing their brains to RF radiation from their smartphones should use earphones or headphones.

 

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PCIE Spread Spectrum from The Tech ARP BIOS Guide!

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PCIE Spread Spectrum

Common Options : Down Spread, Disabled

 

PCIE Spread Spectrum : A Quick Review

Spread spectrum clocking works by continuously modulating the clock signal around a particular frequency. This “spreads out” the power output and “flattens” the spikes of signal waveform, keeping them below the FCC limit.

The PCIE Spread Spectrum BIOS feature controls spread spectrum clocking of the PCI Express interconnect.

When set to Down Spread, the motherboard modulates the PCI Express interconnect’s clock signal downwards by a small amount. Because the clock signal is modulated downwards, there is a slight reduction in performance.

The amount of modulation is not revealed and depends on what the manufacturer has qualified for the motherboard. However, the greater the modulation, the greater the reduction of EMI and performance.

When set to Disabled, the motherboard disables any modulation of the PCI Express interconnect’s clock signal.

Generally, frequency modulation via this feature should not cause any problems. Since the motherboard only modulates the signal downwards, system stability is not compromised.

However, spread spectrum clocking can interfere with the operation of timing-critical devices like clock-sensitive SCSI devices. If you are using such devices on the PCI Express interconnect, you must disable PCIE Spread Spectrum.

System stability may also be compromised if you are overclocking the PCI Express interconnect. Therefore, it is recommended that you disable this feature if you are overclocking the PCI Express interconnect.

Of course, if EMI reduction is still important to you, enable this feature by all means, but you may have to reduce the PCI Express interconnect frequency a little to provide a margin of safety.

If you are not overclocking the PCI Express interconnect, the decision to enable or disable this feature is really up to you. If you have electronic devices nearby that are affected by the EMI generated by your motherboard, or have sensitive data that must be safeguarded from electronic eavesdropping, enable this feature.

Otherwise, disable it to remove even the slightest possibility of stability issues.

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PCIE Spread Spectrum : The Full Details

All clock signals have extreme values (spikes) in their waveform that create EMI (Electromagnetic Interference). This EMI interferes with other electronics in the area. There are also claims that it allows electronic eavesdropping of the data being transmitted.

To prevent EMI from causing problems to other electronics, the FCC enacted Part 15 of the FCC regulations in 1975. It regulates the power output of such clock generators by limiting the amount of EMI they can generate. As a result, engineers use spread spectrum clocking to ensure that their motherboards comply with the FCC regulation on EMI levels.

Spread spectrum clocking works by continuously modulating the clock signal around a particular frequency. Instead of generating a typical waveform, the clock signal continuously varies around the target frequency within a tight range. This “spreads out” the power output and “flattens” the spikes of signal waveform, keeping them below the FCC limit.

Clock signal (courtesy of National Instruments)

The same clock signal, with spread spectrum clocking

The PCIE Spread Spectrum BIOS feature controls spread spectrum clocking of the PCI Express interconnect.

When set to Down Spread, the motherboard modulates the PCI Express interconnect’s clock signal downwards by a small amount. Because the clock signal is modulated downwards, there is a slight reduction in performance.

The amount of modulation is not revealed and depends on what the manufacturer has qualified for the motherboard. However, the greater the modulation, the greater the reduction of EMI and performance.

When set to Disabled, the motherboard disables any modulation of the PCI Express interconnect’s clock signal.

Generally, frequency modulation via this feature should not cause any problems. Since the motherboard only modulates the signal downwards, system stability is not compromised.

However, spread spectrum clocking can interfere with the operation of timing-critical devices like clock-sensitive SCSI devices. If you are using such devices on the PCI Express interconnect, you must disable PCIE Spread Spectrum.

System stability may also be compromised if you are overclocking the PCI Express interconnect. Of course, this depends on the amount of modulation, the extent of overclocking and other factors like temperature, voltage levels, etc. As such, the problem may not readily manifest itself immediately.

Therefore, it is recommended that you disable this feature if you are overclocking the PCI Express interconnect. You will be able to achieve better overclockability, at the expense of higher EMI.

Of course, if EMI reduction is still important to you, enable this feature by all means, but you may have to reduce the PCI Express interconnect frequency a little to provide a margin of safety.

If you are not overclocking the PCI Express interconnect, the decision to enable or disable this feature is really up to you. If you have electronic devices nearby that are affected by the EMI generated by your motherboard, or have sensitive data that must be safeguarded from electronic eavesdropping, enable this feature.

Otherwise, disable it to remove even the slightest possibility of stability issues.

 

Recommended Reading

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MCLK Spread Spectrum – The BIOS Optimization Guide

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MCLK Spread Spectrum

Common Options : 0.25%, 0.5%, 0.75%, Disabled

 

Quick Review

Spread spectrum clocking works by continuously modulating the clock signal around a particular frequency. This “spreads out” the power output and “flattens” the spikes of signal waveform, keeping them below the FCC limit.

The MCLK Spread Spectrum BIOS feature controls spread spectrum clocking of the memory bus. It usually offers three levels of modulation – 0.25%, 0.5% or 0.75%. They denote the amount of modulation around the memory bus frequency. The greater the modulation, the greater the reduction of EMI. Therefore, if you need to significantly reduce EMI, a modulation of 0.75% is recommended.

Generally, frequency modulation through spread spectrum clocking should not cause any problems. However, system stability may be compromised if you are overclocking the memory bus.

Therefore, it is recommended that you disable the MCLK Spread Spectrum feature if you are overclocking the memory bus. Of course, if EMI reduction is still important to you, enable this feature by all means, but you may have to reduce the memory bus frequency a little to provide a margin of safety.

If you are not overclocking the memory bus, the decision to enable or disable this feature is really up to you. If you have electronic devices nearby that are affected by the EMI generated by your motherboard, or have sensitive data that must be safeguarded from electronic eavesdropping, enable this feature. Otherwise, disable it to remove even the slightest possibility of stability issues.

 

Details

All clock signals have extreme values (spikes) in their waveform that create EMI (Electromagnetic Interference). This EMI interferes with other electronics in the area. There are also claims that it allows electronic eavesdropping of the data being transmitted.

To prevent EMI from causing problems to other electronics, the FCC enacted Part 15 of the FCC regulations in 1975. It regulates the power output of such clock generators by limiting the amount of EMI they can generate. As a result, engineers use spread spectrum clocking to ensure that their motherboards comply with the FCC regulation on EMI levels.

Spread spectrum clocking works by continuously modulating the clock signal around a particular frequency. Instead of generating a typical waveform, the clock signal continuously varies around the target frequency within a tight range. This “spreads out” the power output and “flattens” the spikes of signal waveform, keeping them below the FCC limit.

Clock signal (courtesy of National Instruments)
The same clock signal, with spread spectrum clocking

The MCLK Spread Spectrum BIOS feature controls spread spectrum clocking of the memory bus. It usually offers three levels of modulation – 0.25%, 0.5% or 0.75%. They denote the amount of modulation around the memory bus frequency. The greater the modulation, the greater the reduction of EMI. Therefore, if you need to significantly reduce EMI, a modulation of 0.75% is recommended.

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Generally, frequency modulation through spread spectrum clocking should not cause any problems. However, system stability may be compromised if you are overclocking the memory bus. Of course, this depends on the amount of modulation, the extent of overclocking and other factors like temperature, voltage levels, etc. As such, the problem may not readily manifest itself immediately.

Therefore, it is recommended that you disable the MCLK Spread Spectrum feature if you are overclocking the memory bus. You will be able to achieve better overclockability, at the expense of higher EMI. Of course, if EMI reduction is still important to you, enable this feature by all means, but you may have to reduce the memory bus frequency a little to provide a margin of safety.

If you are not overclocking the memory bus, the decision to enable or disable this feature is really up to you. If you have electronic devices nearby that are affected by the EMI generated by your motherboard, or have sensitive data that must be safeguarded from electronic eavesdropping, enable this feature. Otherwise, disable it to remove even the slightest possibility of stability issues.

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Auto Detect DIMM/PCI Clk – The BIOS Optimization Guide

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Auto Detect DIMM/PCI Clk

Common Options : Enabled, Disabled

 

Quick Review

The Auto Detect DIMM/PCI Clk BIOS feature determines whether the motherboard should actively reduce EMI (Electromagnetic Interference) and reduce power consumption by turning off unoccupied or inactive PCI and memory slots.

When enabled, the motherboard will query the PCI and memory (DIMM) slots when it boots up, and automatically turn off clock signals to unoccupied slots. It will also turn off clock signals to occupied PCI and memory slots, but only when there is no activity.

When disabled, the motherboard will not turn off clock signals to any PCI or memory (DIMM) slots, even if they are unoccupied or inactive.

It is recommended that you enable this feature to save power and reduce EMI.

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Details

All clock signals have extreme values (spikes) in their waveform that create EMI (Electromagnetic Interference). This EMI interferes with other electronics in the area. There are also claims that it allows electronic eavesdropping of the data being transmitted. To reduce this problem, the motherboard can either modulate the pulses (see Spread Spectrum) or turn off unused AGP, PCI or memory clock signals.

The Auto Detect DIMM/PCI Clk BIOS feature determines whether the motherboard should actively reduce EMI and reduce power consumption by turning off unoccupied or inactive PCI and memory slots. It is similar to the Smart Clock option of the Spread Spectrum BIOS feature.

When enabled, the motherboard will query the PCI and memory (DIMM) slots when it boots up, and automatically turn off clock signals to unoccupied slots. It will also turn off clock signals to occupied PCI and memory slots, but only when there is no activity.

When disabled, the motherboard will not turn off clock signals to any PCI or memory (DIMM) slots, even if they are unoccupied or inactive.

This method allows you to reduce the motherboard’s EMI levels without compromising system stability. It also allows the motherboard to reduce power consumption because the clock signals will only be generated for PCI and memory slots that are occupied and active.

The choice of whether to enable or disable this feature is really up to your personal preference. But since this feature reduces EMI and power consumption without compromising system stability, it is recommended that you enable it.

 

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If you like our work, you can help support our work by visiting our sponsors, participating in the Tech ARP Forums, or even donating to our fund. Any help you can render is greatly appreciated!