8 Genius DIY Cell Phone Signal Boosters

Tired of having to stay in a corner of your living room to use your phone because cellular reception is practically nonexistent? Love to hike but can’t afford to stay closed off while chasing waterfalls and sunsets? If your answer to any of the questions is yes, then a signal booster for your cell phone is just what you need.

A signal booster identifies and amplifies the closest signal, improving your phone’s reception. But most cost anywhere from $400 and more, making making your own is a great way to cut costs. Here are eight genius DIY cell phone signal booster ideas for inspiration.

1. Cheap and Simple GSM Signal Booster

You don’t need a huge budget or complicated items to make a booster for your cell phone. Just grab some copper wire you have lying around called a GSM magnetic antenna and then follow the step-by-step guide illustrated in the video above to make your signal booster.

The result? A highly effective booster for signals from 2G, 3G, 4G to LTE mobile phones, so you never have to deal with dropped calls wherever you are.

2. Homemade Portable 4G LTE Signal Booster

Only need a 4G signal booster? Well, making one isn’t rocket science. And you don’t need any complicated items either. You will use easy-to-find items for the project, such as iron wire, a magnet to confirm that it is indeed an iron wire, a screwdriver, a scale to take measurements, and a TV cable.


Start by straightening the wire, bending it at a 45-degree angle, and following the step-by-step YouTube tutorial steps above.

3. Iron Pendant Signal Booster

Did you know that you can turn an iron pendant into a signal booster? If not, now you do. And the process is quite simple.

Just straighten the iron hanger, remove the insulation with a razor blade, bend it to form a diamond and complete the process as shown in the YouTube tutorial.

And if that didn’t take up enough of your time, check out these other easy DIY projects you can work on to beat the weekend boredom.

4. Mobile Phone Signal Booster with PCB

If you are tired of bad cell phone reception and have a knack for engineering projects, this PCB phone amplifier is perfect for you. It takes a little longer to complete than other projects on our list, but when you’re done, you’ll have a signal booster capable of boosting 2G to 4G network signals.

It’s definitely worth the effort, plus the tutorial is quite simple and even includes links to more detailed tutorials so you can easily make your own. You can check out how to solder wires and electronics to make this project easier.

5. Multi-function Signal Booster

Do you have multiple cell phones that need signal amplification? Make this multi-function signal booster and skip the cost of buying an expensive multi-function repeater. For this project you will need copper coils, a transistor, a 30pf variable capacitor, a pair of 200k, 2.2K and 100ohm resistors, a 27pf capacitor, 20MHz crystal oscillator, an LED to indicate when it is working, and a PCB board to to list.

The supplies shouldn’t cost you much, and it’s much cheaper than commercial options. The best part? Once you’ve made the copper coils (by turning them on a screwdriver), all you have to do is assemble everything and your multifunction signal amplifier is ready to use.

6. Aluminum Foil Signal Booster

Iron pendant signal boosters are easy to make, but what’s even simpler is an aluminum foil booster. All you need to do is wrap a piece of copper wire, chop a 3.5mm RCA jack, tape one end to the wire in the foil and plug the end into a jack into your phone to boost the signal.

It’s easy to make and highly portable, meaning you can take it with you on your camping trips. Most importantly, it is highly effective as the aluminum foil concentrates signals to your phone, increasing signal range and performance. In addition to signal amplification, this easy-to-make signal booster also protects you from hackers, as the foil focuses signals in only one direction: your phone.

7. Homemade telephone antenna with a copper cable

This project requires you to peel off half a meter of copper cable to remove the insulation and then use it to make a circuit, as illustrated in the video above. Once complete, tape the circuit to a large enough piece of tape, make sure to tape the other end as well, attach it to the back of your phone and voila!

You now have a discreet signal booster for your mobile phone that you can take anywhere, so you never have to complain about poor network and Wi-Fi signals again.

8. Mobile Signal Booster With A Can

If you’re still weighing your options, it could be a signal that booster is tickling your fancy. And it’s also one of the easiest to make. Just remove the bottom of your last soda can, cut out the body as illustrated in the video, place a piece of aluminum foil in it and then place your phone to boost the signal.

Again, it works because the foil pushes signals to your phone, which improves the strength of Wi-Fi and network signals.

Advantages of making your own cell phone signal booster

Besides zero dead zones, here are some more benefits of making your own cell phone signal booster at home:

It saves costs

Commercial signal boosters do an excellent job of eliminating dead zones, but come with a hefty price tag. Most cost anywhere from $400 to $800, but making them yourself will cut costs significantly. In some cases, such as the can technique and the aluminum foil option above, you won’t spend a dime, but you can still enjoy enhanced signals.

Longer battery life

Nothing drains your phone’s battery life faster than poor network reception. If the signal is bad, your phone will try to make up for it by boosting the signal reception. This will only speed up battery drain and affect your phone’s ability to hold the charge for longer as you have to recharge often. By making one of the simple DIY cell phone boosters above, you can solve the problem.

Make a cell phone signal booster today

As seen in most of the above projects, a cell phone signal booster is one of the easiest DIY projects you will ever undertake. You can go for a simple and portable antenna like the four-minute signal booster antenna above, or if you like challenges, make one with a PCB. Whatever floats your boat, we wish you a lot of fun in realizing the above projects.

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