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Old 01-31-2019, 02:01 PM   #1
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Default Solve This Puzzle - Mystery power outage zaps...

The headline is "Mystery power outage zaps electrical devices in Canadian co-op parking lot, stumping electricians, locals" but when I read the story, I don't see where "power outage" is the mystery.

Seems like something is "talking to" those key fobs causing them to run (their microcontroller) 100% draining the power stored in the battery.

But then they say replacing fob battery doesn't help.

Can't say I have any clue. I think they need to use a spectrum analyzer to find the source.

Very interesting if nothing else.

Who has theories?


https://www.foxnews.com/world/myster...ricians-locals
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Old 01-31-2019, 02:12 PM   #2
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I am skeptical as usual

1. How many people are affected?
2. What is the REAL evidence?
3. What testing have they done EMI, EMF?

I have been involved in a few cases where there was all kind of testing completed to determine the source of unexplained power failures and in each case, the "weird and unexplained" was due to human interference.

More importantly, did you know that skeptical can be spelled sceptical
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Old 01-31-2019, 02:17 PM   #3
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It's not a power outage.

The symptoms are "...zapping the power out of their key fobs, draining their car batteries and triggering their alarms in a parking lot ..."
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Old 01-31-2019, 04:02 PM   #4
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Thanks for posting. One or two good theories in the comment section.
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Old 01-31-2019, 05:40 PM   #5
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It's not a power outage.

The symptoms are "...zapping the power out of their key fobs, draining their car batteries and triggering their alarms in a parking lot ..."
I know and I am still skeptical unless I see it and AM PAID to determine the source I am a skeptic.
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Old 01-31-2019, 05:47 PM   #6
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Your theory about some form of localised interference sounds reasonable,
Worthy of further investigation,
But you will need specialist equipment.
Do you not have a government department that does this type of work ?
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Old 01-31-2019, 05:51 PM   #7
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Send @99cents, he's good a figuring these things out.
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Old 01-31-2019, 08:26 PM   #8
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I read the report as someone who has no clue trying to sound smart.

People are replacing the battery in there remotes and they are still not working. Car alarms are going off (like they would if you hit the panic button on a remote)

Simply this is interference in the same band width used by remotes and rfi chips. Its been know for years that you could use a signal jammer that stops people from remote locking there cars. If they don't return and manually lock the doors then thieves can access the car as the doors are unlocked and the alarm is not armed.

The only question is what is causing the interference.
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Old 01-31-2019, 08:42 PM   #9
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My guess is the blue tooth on phones somehow communicates with keyfob, thereby draining the fob battery.

I bought a new car 6 months ago and keyfob battery is already low, my prior car didn’t have fob but did have remote key (used to unlock doors/trunk only) never had battery replaced in over 10 years.
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Old 01-31-2019, 09:57 PM   #10
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Alieums....it's those darned ol' Alieums at it again......

They're bombarding the Earth with disruptor rays from outer space.
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Old 01-31-2019, 10:00 PM   #11
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Quote:
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Alieums....it's those darned ol' Alieums at it again......

They're bombarding the Earth with disruptor rays from outer space.
They need to eat the Canadians first because they're tastier!
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Old 01-31-2019, 10:03 PM   #12
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Key fobs use signals on two bandwidths: 315 mHz and 434 mHz.

It could be malfunctioning sensors in a store's automatic door or security systems that have sensors used to pick up signals from things such as the radio-frequency identification (RFID) tags on merchandise. These systems operate on a similar frequency as the keyless entry systems in automobiles. Depending on the locations of the frequency receivers and transmitters, the affected area could be anywhere from 75 to 300 feet.

Is there a bar nearby with DJ equipment? That too could be malfunctioning.
Look for wireless speakers or wireless video surveillance systems. Also look for licensed Amateur Radio Antennas.
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Old 01-31-2019, 10:17 PM   #13
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When they shut down the store's power, did they also turn off all battery UPS systems?
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Old 01-31-2019, 11:48 PM   #14
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I would not hire an electrician for this, I'd hire a radio guy for this. Powering things on and off is fumbling through this blindfolded, the spectrum analyzer and the right antennas would shed light on this directly.
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Old 02-01-2019, 05:39 AM   #15
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During annual RIMPAC navel exercises off Pearl Harbor, there is usually half a dozen reported incidents of garage doors opening without any prompting by the homeowner, and sometimes you can pick up ship to ship chatter on the AM radio for a brief moment or two. Usually these things happen in Aiea, which is the suburb on the hills surrounding Pearl Harbor.


Has our US Navy sailed into Canada?
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Old 02-01-2019, 05:44 AM   #16
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Car batteries get drained?

I doubt it.
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Old 02-01-2019, 05:49 AM   #17
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Originally Posted by macmikeman View Post
During annual RIMPAC navel exercises off Pearl Harbor, there is usually half a dozen reported incidents of garage doors opening without any prompting by the homeowner, and sometimes you can pick up ship to ship chatter on the AM radio for a brief moment or two. Usually these things happen in Aiea, which is the suburb on the hills surrounding Pearl Harbor.


Has our US Navy sailed into Canada?
Shhhhh,,,, That stuff is a secret.
Now I can tell you a story about sweeping out Chicagos airport radar years ago..
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Old 02-01-2019, 10:54 AM   #18
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This is just up the road from me. They were talking about it on the radio and figure it is some Chinese junk interfering with the signals.
The locals think it is a security system that was installed in the new Tim Hortons. You can get your coffee fix but can't get back into your car, hence the drive through.


















Tim.
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Old 02-01-2019, 11:11 AM   #19
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Quote:
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This is just up the road from me. They were talking about it on the radio and figure it is some Chinese junk interfering with the signals.
The locals think it is a security system that was installed in the new Tim Hortons. You can get your coffee fix but can't get back into your car, hence the drive through.
Tim.
Most likely a wireless alarm system nearby, running at 433MHz. 433.92 MHz is used in European, Japanese and Asian car remotes.

433MHz used to be dedicated to industrial, scientific and medical bands. In recent years, this band has also been shared with wireless alarm systems.
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Old 02-01-2019, 11:59 AM   #20
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Quote:
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This is just up the road from me....


Tim.
Would you let us know what comes of it please?

You may want to head over there and make some bank. I'm sure it's worth a hefty amount to that grocer to get it resolved.

Not sure about up in Canada but down here FCC Part 15 requires the owner of any device which radiates emissions to agree to cease using it if it causes interference to others. A spectrum analyzer would be useful in finding the culprit.
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