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External antenna
Erwin Ried edited this page Aug 9, 2024
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1 revision
The ESP32CAM uses by default an internal antenna. You might want to use an external antenna like the one show below:
![](https://private-user-images.githubusercontent.com/1091420/356570938-6c1b20f7-8e13-48ec-a74b-1fae0ad1cba6.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.7bmDTjfiATx6etbRuwhSeuQWJ_LHXXfIprhuoFKFKic)
You need to switch the resistor near the antenna (you can replace it with a piece of wire or solder blob, just be careful of keeping 1 path only):
![](https://private-user-images.githubusercontent.com/1091420/356571783-2b3db53f-67f0-4001-85eb-cfe4ad54c822.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.jYlkpXWqRK4fOj8IbOcvcl-OL1qc-tkHgNDi6-Eg1fg)
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