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How does a wifi transciever placed inside a Pringles can act as a wifi signal booster. I saw this trick on Mr robot TV series. Do WiFi routers emit less power than GSM or LTE. I know for :

GSM - 2W (33dbm)

LTE - 200mW (23dbm)

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closed as unclear what you're asking by pipe, winny, Dmitry Grigoryev, awjlogan, Elliot Alderson Sep 27 '18 at 14:38

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    \$\begingroup\$ Not booster, directional (c)antenna \$\endgroup\$ – PlasmaHH Sep 6 '18 at 7:05
  • \$\begingroup\$ Wifi: 100mW when using 2.4 GHz. The 5 GHz band uses more power. \$\endgroup\$ – Turbo J Sep 6 '18 at 7:09
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    \$\begingroup\$ @TurboJ that statement is as far as I know wrong, and even if it isn't, the amount of power you may use depends on local jurisdiction, so you certainly can't make general statements like that. \$\endgroup\$ – Marcus Müller Sep 6 '18 at 7:20
  • \$\begingroup\$ What are limits set by FCC? \$\endgroup\$ – ObsessionWithElectricity Sep 6 '18 at 7:26
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    \$\begingroup\$ How is GSM or LTE even related to your question? What are you actually asking about here? \$\endgroup\$ – pipe Sep 20 '18 at 3:04
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As PlasmaHH says, it doesn't boost the total power - it can't, it's a passive device. Instead it makes the antenna much more directional. Signal behind or to the side will be much weaker. Usually you'll use them in pairs to make a link between two buildings.

Very similar principles to the directional reflectors in flashlights or car headlights.

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