EDIT: Pleas note that this project is several years old. Before I actually new anything about gain,db, wifi, and a lot of other things. The values given as gain are obviously not true but I can’t retest this setup and would like to leave it for nostalgia purposes. Thank you
This is the antenna that I use to pinpoint the location of wireless access points. With this parabolic antenna I can even determine where in the house the router is located! I bought a $2 strainer from Walmart and attached a usb WUSB54G V4 antenna to it. With that I am able to achieve 46dbi Gain!
Here is “Version 2″. It has gotten the best reception so far. I am hoping to improve.
This picture is the first version I made. It was only able to reach a max of 30dbi gain…only
Here are the statistics of version 1.
Version 2 statistics compared to Version 1 statistics.
Motorized Base
One day I came up with the thought of mounting the dish on some type of motorized base. I considered making my own from scratch and using servo motors. However I found that if I purchased a Usb Missile Launcher, 90% of the work was already done for me.
Here is the Missile launcher right out of the box.
2 Responses
Catonic on 16-11-2008 at 8:41 pm
Math fail on the calculation of gain. The antenna is highly directional, but there’s no physical way to get 46dB of gain at 2.4 GHz using such a small reflector.
admin on 01-06-2009 at 11:08 am
@Catonic, You are absolutely correct. This project was done back in my early years of electronics before I really understood gain/db even ohm’s law. Thank you for keeping me straight! :)