in ,

Long Range WiFi Antenna using Scrap

In my previous post, I mentioned everything about various types of WiFi antenna and how to position them. Now I will show you how to make a long range WiFi antenna using cheap WiFi Adapter and Scrap Parabolic Dish Antenna. Before going further, let us take a closer look at Dish Antenna and its working.

Parabolic Dish Antenna

A parabolic dish antennas are highly directional antennas that are commonly used in long range transmission and reception. They are commonly used in satellite communications, dish TVs etc. It is simply a curved metallic surface accompanied by a receiving unit (feed horn). The EM waves falling on the parabolic curved surface will get reflected to the focal point, where the feed horn is placed. These feed horns converts the EM waves to electrical signals and is later amplified by the internal circuit.

USB WiFi Adapter

USB WiFi Adapters are mostly plug and play USB devices which can act as an interface for connecting devices such as desktops and laptops to wireless networks. These devices will have external or internal antennas which will convert the EM waves from the access point to electrical signals which is later processed by the internal circuit and is converted to network data packets.

For this project, I am using an old dish antenna and an Alpha AWUs036NH WiFi adapter.


Step 0 – Creating a Stand (Optional)

Since this is a directional antenna, it would be better if you have something light weight to fix this antenna on for easy adjustments. So I decided to build a small stand using some old PVC pipes.

Step 1 – Clean the Antenna

Take the parabolic dish antenna and clean it thoroughly by brushing off all the dust. If it is rusted, remove it by scrapping the metal part using a sand paper. It is very important that the metallic surface should be clean and free from all the dust and rust otherwise the EM waves will not be reflected properly.

Step 2 – Remove the Feed Horn

The reflector focuses all the signals to the feed horn which is kept at the focal point. Now carefully unscrew the feed hones and remove it from the holder.

Step 3 – Fix USB WiFi Adapter

Place the WiFi Adapter in such a way that the receiving antenna of the adapter is at the exact focal point of the parabolic dish.

Step 4 – Pointing the Antenna

Pointing the antenna to a source at a far distance is a lot harder than it sounds like. These antennas have a radiating angle between 3 degree and 12 degree. So a slight change in the position of antenna can affect the signal strength.

Rate the Project

Did you find this page useful? Help us to improve by rating this page.

Long Range WiFi Antenna using Scrap
4.4 rating based on 12,345 ratings
Overall rating: 4.4 out of 5 based on 253 reviews.

Written by Jithin


Leave a Reply
  1. It would be great if you took a picture of the USB adapter facing the dish, or a frontal view showing how you were able to focus the USB.

    Thanks in advance,

    Jason Swartz
    PcMedix Computer Repair

  2. useless to a beginner

    i am already a handy man

    need numbers and photos of feed system

Leave a Reply

Your email address will not be published. Required fields are marked *

Arduino Web Editor Setup- Getting Started

NodeMCU UDP Listener – Mobile Phone Sensor Data