Emergency Signal-Boosting Cellphone Antenna





Introduction: Emergency Signal-Boosting Cellphone Antenna

This simple, cheap and easy to make antenna can boost your cellular phone's signal enough that you stand a better chance of getting help in a bad signal area. All you need to make it is:

Some thin, solid-core copper wire (easily found inside phone wire)
Wire cutters
Tape measure or ruler
Drywall screw
Solder and soldering iron



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    I just tried this with a 4 year old clam phone by joining 3 twist tie wires together and duct taping it to the upper half of the back of my phone. Went from no bars to one bar. The better indicator went from two bars to three. Reception in my yard is spotty and I'd wondered if this would work in an emergency. Will this screw up the phone?

    Hi I joined up to share some insite about ant.s as a ham radio operator it's manditory to learn about the way ant.s can harm your equipment the mesurment is the SWR signal "all antennas must be matched to the frequncy they transmit on" !!! It will also inprove reception so you cut the antenna useing a formula for the perfict SWR ratio if you don't the power radiation comes back down the wire and frys your front end. Most ham operators learn how to trim there antennas for this problem as it's very costly not to. As it's a simuar tech these rules must apply in this case. Also you must take resistance into the factor as even a T.V. Only works with a matching resistance. Hope this helps some of you.

     it was like having a 7 foot antenna connected to my phone.

    Hey Hoopajoo thanks for the tip... went from 1 bar to three bars and can now make calls from my downstairs bathroom. Could not do that before making this antenna. Only have one problem... when I take out the antenna I can't get any bars and my phone says " Searching for Service". Even in an area where I used to get three bars it still says " Searching for Service". It seems that the phone is dependent on that cool little antenna now. With out the antenna my phone is just about useless? Any ideas how I can get it back to my original state before using the antenna mod? I am using a LGVX8600 on Verizons network in So Calif.

    I tried this project last night... After a quick stop into the local verizon shop, I wanted to jump online and post a warning. Well, Fourxguy beat me to it with the exact same problem except my phone is an LGVX8100. With two months to go before my "free" upgrade, I'm now sitting down to try and wind the wire antenna inside the battery compartment as a temporary affair. JF

    um, just use wire cutters and snip most of it off.

    According to my neighbor who is a tech for Alltel (named Chad, NO CRAP), the cmos for many LG phones has this buggy 'feature' that remembers the use of an external antenna and will default to it until the cmaos is reset. This is done py powering off the phone, removing the battery, holding the power button for 10 seconds with the battery out, replacing the battery and then powering on. He said that this should fix it. Sorry for any trouble. I tested this on my wife's LG and nothing happened, but hers is a LG Wave.

    I tried this and it did not work :{ Thanks for your reply!

    WARNING: Do not try this with ANY Treo smartphone unless you want to screw it up. There have been two identical instances already. As a precaution I would not try this with any phone unless you have found an example where someone else has already done it.