How To Create A Free Mobile Antenna

Created by Nick 2010-06-04 11:23:47
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Are you having problems accessing the repeaters because of low gain mobile antennas? Or do you just want to build a mobile wave antenna for some reason? Here is how to do it for almost nothing.

How to make a simple 5/ 8 Wave 2-meter Mobile Antenna

What you need? A mobile antenna base, a 2-meter long fiber glass, same length of
flexible woven copper shield tube (this comes inside a coaxial wire), a 40 cm long copper wire (14 to 18 gauge will do), 2 meters long heat shrink tubing, solder and soldering iron.

Step one: Glue the fiberglass to the base of the antenna. Make sure it is fixed.


Step two: Solder the end of the copper wire to the base of the antenna.


Step three: Wind 11 turns of the copper wire up the rod with a spacing of about 3 mm between each turn.


Step four: When you are done with your 11th turn, bend the copper wire to the fiberglass rod.


Step five: Slip the fiberglass rod inside the flexible woven copper shield tube. What you need here, is for the flexible woven copper shield tube to cover the complete fiberglass until it reaches the top of the winding of the copper wire.


Step six: You need to bend up the final part of the copper winding so that it over-lapses with the flexible woven copper shield tube.


Step seven: Solder the bent end of the copper wire to the flexible woven copper shield tube.


Step eight: Cut the excess of the top of the flexible woven copper shield tube, and glue it to the top of the fiberglass so it will not slip down.


Step nine: Slide the heat shrink tube over the flexible woven copper shield tube. Right down to the top of the base.


Step ten: Use heat (hair drier) to shrink the heat tube.


The result will be a 2-meter fiberglass rod, which in its base has a antenna base from which the copper has been soldered. The antenna is basically the fiber rod, wrapped in woven copper, and then insulated in the heating tube. The soldered copper at the base is the connection needed for the traveling signals to be picked up by the woven copper. The antenna base will make sure you get the signals. Antenna base like this usually end in SMA adapters. From the SMA you can connect a cable and connect your antenna to a radio, a computer, a wi-fi, a router, a complex walkie-talkie, etc. If the antenna is too long for your needs, you can cut to 1.4 meters, cut from the top

Have fun, the signals bounce off the air. This article does not encourage hacking into communications,. Respect privacy, and respect the law, legal regulations and acts, such as the Privacy of Information, Data Protection, Human rights to privacy are all very important laws that should be respected. This article deals with education, amateur radio and science.
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