Why does Stick Up Cam Elite have a continuous stream of wireless transmission when using Ethernet?

I just bought a Stick Up Cam Elite. I powered it up using the included PoE adapter and used the App to connect it to my network. The cam was configured to use Ethernet, and I can now view the camera over Ethernet. Wireless was used to set the camera up using the App, but now that setup is complete, I expect there to be no wireless connection anymore. Using an RF meter, I can see that as soon as the camera is plugged into a wall outlet, a non-stop stream of wireless transmission begins. As soon as the device is unplugged from the wall outlet, the transmission stops. The stream is XXXX% continuous, with no intermittent breaks. Removing power appears to be the only way to make it stop. Can someone please explain why the device is transmitting wirelessly like this? The whole point of buying this camera was so that it used Ethernet only. Having to use wireless temporarily during setup is understandable. But after that, it should get disabled.