How Much 5G Is Inside an NFL Stadium?
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- Опубліковано 31 гру 2023
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Cathy Cooke
Whole Home and Body Health
I'm thinking that it was a good thing you were sitting on a lower level as the 5G antennas in your video were on the top rim around the stadium where the signal strengths would presumably be a lot higher.... Great video, thanks. Hope you enjoyed the game!
A possible explanation for the generally low ambient mmWave levels at your seat but then higher periodic spikes is that mmWave 5G mobile phone antennae only emit strongly when a direct data connection is requested by a phone, and then the data is beamed directly to that specific phone (beamforming). mmWave antennae are also carrier-specific. So those could've been from 5G activated phones around you.
Yes that's exactly right. The levels are going to vary greatly depending on these factors.
Hello, thank you for all your content ! For this video, maybe with this meter and also the Safe and Sound Pro II (the green one, measuring from 1 to 8 GHz), you would have had high readings too. Not all 5G is over 20 GHz for now. It need both meters to make an idea of an area now.
Yes understood. I had to sneak in this meter so it wouldn't get confiscated, and it was not easy. I could not have snuck in two meters
Interesting video. The millimeter band goes from 110-300 GHz, your meter only measures 20-40 GHz (the centimeter band). Most of the radiation at the football stadium is probably on the 3.5 GHz band (5g + 4g). You should also brought "the green meter" to the game. :)
The millimeter wave range actually starts much lower, around 24 Ghz, hence the design of the meter. Verizon is using 28 GHz, and this meter is designed to pick up those lower millimeter waves in this range. I specifically wanted to see how much was being emitted in this range. We know the lower bands in the 4G range would be crazy already ;)
What other signals use those frequencies (24-50GHz) besides mobile phones and satellite internet?
Object detection radar in vehicles, usually under small circles in the rear bumper of a car, will use 24 GHz radar. You will pick that up when the car is idling, not only when in motion.
@@kengartner204 The older vehicles without backup cameras don't have this ?
Yes many makes of cars use radar at 24Ghz like Ken said, but others (like Tesla & BMW) use higher radar frequencies at 76Ghz and don't register on this particular meter.
I've also measured 24-40Ghz band from many motion-sensing automatic doors, like those at supermarkets; and also from traffic sensors posted at intersections (white square things).
stupid question but what was the video recorded with?
an iphone - in Airplane mode with all antennas turned off ;)