Connect with us

Hi, what are you looking for?

Tweaks

Field Testing A Home Made WiFi Antenna

Most readers will be aware that a good way to extend WiFi range is to use a better antenna for those 2.4 GHz signals, but at the same time such high frequency hijinks have something of a reputation of being not for the faint-hearted. [Dereksgc] puts that reputation to the test by building a helical WiFi antenna — and if that weren’t enough — he also subjects it to a field test. In a real field, is there any other way?

We’ve put both videos below the break, and you can find his helical antenna calculator on his website and the parametric CAD file for the scaffold in his GitHub repository. He first delivers a crash course in the fundamentals of helical antennas before diving into the construction, and even soldering on an impedance matching strip. The field testing involves setting up a base station with an FTP server on a phone, and connecting to it with a variety of antennas over increasing distance across farmland. We’ve characterised antennas in this way before, and it really does give an immediate view of their performance.

In this case the helix comfortably outperforms a commercial patch antenna and a laptop’s internal antenna, making such an antenna a very worthwhile piece of work whether you’re making a fixed link or indulging in a bit of casual wardriving.

The tools mentioned here will make helical antennas a snap, but this isn’t the first time we’ve touched on the subject.

Advertisement. Scroll to continue reading.
AIAD


You May Also Like

Tweaks

Ever been on the verge of the ultimate techie setup, only to stumble upon the need for one last tweak? For Maxime, the final...

Tweaks

Recently, we explored the complexities surrounding timezones and the Moon’s unique timing system. While Earth’s time is Sun-based, the Moon follows a different rhythm...

Tweaks

In the past, high-voltage power supplies were common in households for tasks like electron acceleration and generating X-rays for television, but with the advancement...

Tweaks

Listening to music through USB sticks is a common practice, particularly in vehicles like [Folkert van Heusden]’s Opel Astra. However, factory-installed USB playback systems...