This can actually be beneficial if your router is right at the corner of your house. The foil acts as a reflector for some of the radiation that would’ve been wasted, and thus improves the signal quality within your house.
To actually be beneficial as a reflector, the foil would need to be a specific distance from the antenna, which should be a certain fraction of the wavelength. Source: I used to make parabolic reflectors out of milk cartons about twenty years ago.
I am 80% sure this is a net loss with modern mu-mimo radios, and it will absolutely trash your phy rate
Ehm sure. Look the red waves in the lower picture are definitely longer. Voila!
What astounds me is despite being a crappy drawing, the person drew that fan with proper perspective and proportion.
I still have a soft spot for troll physics. Needs more magnets, though.
How do they work‽
By interacting with the m dimensional component of the em waves
would you be interested in talking to a scientist?
I sell fans, this is true
I sell the truth, that is my fan. Mits off! You now owe me $5.
…never stops buffering.
Makes download speeds great, but upload drops off a cliff
You another fan behind your phone facing towards the router
not if you mount the fan on the ceiling, and let it lift up the air
The moving parts could disturb MIMO
So better use a fanless Dyson fan? 🤔
Now we’re thinking with portals
NSFW
OnlyWififans 😳Anon accidentally recreates the Michelson-Morley experiment.
Yeah, but that makes the waves more choppy and stormlike which increases degradation of the equipment on the other side as the waves collide more strongly against it.
Remember Pringles antennas? Same energy.
Not as effective as the anti-5G wire cages.
I stumbled onto these on Amazon last night actually. The user submitted video reviews are insane. I was screaming. I got to the head scarf that blocks the 5Gs and I had to stop.
EMF BLOCKING BASEBALL CAP
Oh that’s just magical lol
if its thick enough the aluminum, will act as a faradays cage.
And double as a bomb shelter
Directs the wifi.
In all different directions…
Back in my day, we used a Pringles can.
Didn’t say anything about the effectiveness…
We still do. It’s a fun trick.
I still go war-driving from time to time. 🙂
I used to steal Wi-Fi with an outdated Linux installation DVD.
It’s not stealing if the wifi is just being broadcast unencrypted.
When I was a kid we would connect a coat hanger to the TV to get the news from 2 towns over
I can’t tell if this is legit or an elaborate troll.
Remember windsurfers? You put them on the single antenna of your old linsky router.
I have put my router in a 4 m parabol antenna, with this the signal has also improved somewhat, it only prevents me from using the sofa that is next to the router.
Keeps out the conspiracy-based posts and only lets facts through.
It will probably reflect some of the radiation. Wifi reception will be poorer behind the aluminium and possibly better in front.
A cheapskates version of a directional antenna.
Indeed, although this type of thing was more common with older wifi generations, so I’m not surprised kids these days wont know.
For example: We cut the top off an old beer can, poked a hole and stuck it onto the antenna to have stable download speeds across a courtyard.
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Reminds me of the diy antenna made out of copper wire, an empty CD spool and a single CD on its back. Those antennas could work as far as 1km if there was no obstruction, or 400m through light obstructions. It was awesome.
I remember like 15 or 20 years ago the popular thing was printable papercraft doohickeys that you’d cut out and glue together with aluminum foil on the backside that were like little satellite dishes that mounted on the antennas that were supposed to boost/aim your wifi signal. I gave them a try, but if they made a difference it wasn’t big enough to be noticeable.
We used to do this with antennas for tvs (those circular ones) It used to work in rains too
Yeah, one of our problems was rain and thick fog causing massive drops and even disconnects on the connection going out from the router as 2.4Ghz really doesn’t like water. The antenna on our side was fine for sending signals back we just couldn’t get it stable incoming, which is why we did the can trick.
Long live the Pringles cantenna
Wardriving intensifies
pringles can is too small for 2.4ghz cantenna,it’s near cutoff frequency but just barely, you need 10cm-ish diameter can or shorter 16cm-ish canI once made one of these with a bigger can and mounted it on an old 10’ satellite dish. Managed to get Wi-Fi across several thousand yards without issue
wait i thought for some reason that pringles can sized waveguide would have cutoff frequency above 2.4ghz. nevermind, there’s something better because bigger aperture can get you more directivity like this https://lea.hamradio.si/~s53mv/wumca/cup.html i made two out of cookie tins and it works over 500m at least
We didn’t use Pringles, I think it was these big peaches cans
helical antennas work fine too and look goofy as hell
i’ve used the same (800ml can) and this one works well. cookie tin is 15cm dia 8cm tall and it works, but size can vary a bit. you can copy or scale slightly designs of 13cm band antennas
I did this back in 2010-13, to get better internet in my house! It was a video from a youtube, where he used cereal box with aluminum.
uh, is this real?
