WIFI Antenna Hack!





Introduction: WIFI Antenna Hack!

Turn your standard WIFI antenna into one just like the $30 range extender antennas for about 5 cents! Follow these easy steps, and then check out the video if you need extra clarification. Digg if you like my very first Instructable.

Step 1: Remove the Top of Your Stock WIFI Antenna.

A small flat jeweler's screwdriver works great!

Step 2: We're Going to Match the Range Extender Layout Form As You See Here.

You'll need: small gauge solid copper wire, insulated or non-insulated, and a wood screw/drywall screw, measuring tape or ruler, and a soldering iron.

Step 3: Measure Off 2 3/4" of Your Wire and Make a Small Bend.

Then, starting with the bend, use the grooves of the drywall screw as a template and make 7 COMPLETE loops, then bend the wire flush to the screw after the sevenh loop. just unscrew the drywall screw to remove it from the wire.

Step 4: Measure Off 3/4" From the End of the Coil and Cut.

Then strip off 1/8" of the insulation or sand off 1/8" of the coating on non-insulated wire (depending on what you're using).

Step 5: Cut Down Your Stock Antenna to 1/4"

And then strip off 1/8" of the insulation.

Step 6: Solder the New Antenna Onto Your Cut Down and Stripped Stock Antenna.

Overlap all the bare wire from the stock antenna base and the new antenna.

Step 7: Use a Large Diameter Drinking Straw and Slide It Over the New Antenna.

McD's has them... they're slightly larger diameter than a regular drinking straw. I think they're for shakes, etc.

Step 8: The Straw Fits Perfectly and Snugly on Stock WIFI Antenna Bases.

Amazingly, you don't even have to glue them. It's a match made in heaven! Use a black permanent marker or paint for a pro look...

Step 9: All Done!

Looks pretty good! You get a more omni-directional output (less fiddling with exact antenna placement) and approx. 5 dB gain. It works REALLY well on both your wireless cards and routers. See my video to see the results, and Digg this if you like my very first Instructable! 8D

3 People Made This Project!


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can someone leave the right measurement in cm? thanks

1 inch = 2.54 cm
2 3/4 (2.75) inch = 6.985 cm
Google is a great tool. :)

You obviously cannot solder your wireless adapter to a metal case, there  is something we like to call resonant frequency and attaching something that will cause a mismatch load to the transmitter (1:1) will more than likely damage it over a short period of time. A quarter wave length dipole for 2.4Ghz is 1.23 inches and a full wave is nearly 4.92 inches.

i have an apple mac g4 case which i modded to become a pc case, can i use a wifi card cable to use the internal (apple case aerial) attached to that case?

if so that would put my server down to running on just 2-3 wires (trying to have the least ammount of cables so i can do a (set it & forget it) in my back room. :-p

I dont see why you can't your range will be less than optimal being inside the case, so you may want to use NetStumbler and check your readings after the install, at the very least you may need to move the case to get a descent signal to where you're operating.

cheers for the advice, but as my card has 3 aerials, i would only be using one socket and using the other aerials as normal.

when i get chance, ill try it :-)

I would also like to add that a pc case has the ability to be a case ground, which means if any short were to happen against the metal frame you have a circuit fryer

If the chassis (computer case) is grounded, assuming properly. Any electrical fault involving it should be directed to ground, and not away from the ground (towards a circuit).

I'm totally ignorant about wifi (my caveat/confession): is the length of the antenna why my wifi connection keeps dropping in and out? I get it thru my cable company and it drives me crazy, especially when it drops out right in the middle of an instructable! It comes in thru our own router, and ever since getting the our own router is when the dropouts started. If amplifying the antenna will do the job, I'm all over it! Thanks for your help.

Yes, I know this post is 6 years old.....but, it depends on several factors. First, are there any splitters or couplers in the service line either outside before entering the house, or inside before cable connects to the modem. Check behind wall plates too. This is common source of bad signal, especially if connections are corroded, or limit frequency throughput.

2nd, make sure all connections are tight. oh, and if you found any splitters, make sure they don't cut off too low. 5Hz to 3GHz is ok, but get rid of the ones than only go to 900Hz. Also helpful when troubleshooting poor HDTV signal. Also helps if the Coax used on incoming line is 3G rated. It will usually say right on the outside of cable.

3rd either your router is faulty, or configured incorrectly.