Time to test the spectrum analyzer a little more and do some good ol’ fashioned microwave tests.
Microwaves are a very common 2.4 GHz non-WiFi interferer and a leaky microwave can wreak havoc on your WiFi connectivity. They are also easy and fun to setup spectrum analyzer tests for. 😁
As a benchmark, here is the normal MetaGeek office environment. You can see simply by the RF that there is pretty good channel planning in and around our office.
We have a main kitchen and a small kitchenette in the office. First, let’s see what happens when I turn on the microwave in the main kitchen.
From this image, you can see a pretty strong non-WiFi signature right before channel 11. A leaky microwave, but overall, not the worst I’ve seen… On the other hand, the following image is of the microwave in the kitchenette in our back office. This microwave acted more as a full 2.4 GHz range jammer and overtook the WiFi traffic that was going on at the time.
Lastly, here is a video of the microwave in my home’s kitchen. This is an ugly one. Even though the main signature is coming in past channel 13, which isn’t an available channel in the USA, the microwave still manages to move through the whole 2.4 GHz spectrum, impacting my precious WiFi…