How to Make a Cell Phone Signal Booster

by Kenneth LeeUpdated September 28, 2017

Items you will need

  • Insulated wire

  • Wire cutter

  • Skewer

  • Tape

We have all been there--cell phones seem to cut out or drop calls at the most inconvenient times. Cell phone coverage is still far from perfect because it operates on the same principle as radio waves. Cell phones can only connect to towers in range and if your signal is obstructed by tall buildings, uneven terrain or you’re traveling through a dead zone then you’re out of luck. However, there are a few things you can do to help increase the power of your mobile device.

Cut off about 30 centimeters (1 foot) of your insulated wire

Bend about 5 centimeters of the wire at a 90 degree angle.

Wrap the wire around the skewer about five to seven times. Start from the bend you have created and work your way down leaving some space between each coil you make.

Pull out the skewer. The bent and coiled wire will now serve as an external antenna.

Find the internal antenna of your phone. For most phones it is small plug surrounded by rubber. It may be covered with either a rubber plug or the backing of your phone near the battery.

Bend the wire at the other end at about 1 to 2 centimeters. This end will be inserted into the hole in your external antenna. Judge how much wire you will need to bend based on how deeply situated into the phone your antenna is located.

Strip off half of the insulation at the bend you created with the wire cutters. The wire needs to be in contact with the antenna if it is to send or receive any signal.

Insert the exposed wire into the antenna and secure it in place with adhesive tape.


Keep your hands from obstructing the antenna. Turn your phone to face the nearest tower if you know where it is. Avoid large masses of metal that could interfere with reception. If indoors, move toward a window.

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