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Build Your Own Antenna - Discuss topics for building your own antenna.

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Old 12-23-2017, 12:47 AM
ScannerMan1989's Avatar
Join Date: Dec 2016
Location: Under A Rock ;)
Posts: 66
Talking Help with antenna construction

Hey guys! I want to use two old car antennas from a junk yard or two telescoping BNCs (pictured) to mount on my laptop lid to try to gain some signal from WiFi as the network adapter wires run UP to the top of the lid . I am having trouble trying to mound the antennas on the lid using a clip. The lid is just too thick. Any ideas and any way to keep from scratching anything or keep them from falling? Any ideas!?! Thanks!
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Last edited by ScannerMan1989; 12-23-2017 at 12:49 AM.. Reason: Wires in lid.
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Old 12-23-2017, 3:23 AM
jonwienke's Avatar
Join Date: Jul 2014
Location: PA
Posts: 8,884

None of those will work. WiFi is 2.4GHz, and those antennas are designed for completely different frequencies. You will not improve performance, and may damage your laptop.
Gone camping.
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Old 12-23-2017, 6:13 PM
Join Date: Oct 2015
Location: Camden County South Jersey
Posts: 327

I've actually read some good things about
the "cantenna". Very simple design with good
results for 2GHz.
Google it "cantenna for wifi"
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Old 12-23-2017, 6:45 PM
mmckenna's Avatar
Join Date: Jul 2005
Location: WTVLCA01DS0
Posts: 9,187

Yeah, there are a lot of suitable 2.4GHz and 5.8GHz antenna out there. These ain't them.

Cantennas work well as a directional antenna. You can pick up antennas designed for home WiFi routers pretty easily. Only trouble with those is that they often have odd reverse polarity connectors. Finding a complete/used WiFi router would allow you to salvage the connectors and antennas pretty easily.

Or, just get a cheap USB WiFi module with antenna off e-Bay for less than $20:

That way you don't have to modify your laptop, and can experiment with different antennas.
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