If you have discerning thieves, they can use a spectrum analyzer to find the frequencies that your security system is using and then just blanket a single channel. If your router is connected to homebase via wifi, then you get a double whammy as the jammer will kill both sides of the homebase connection. Your homebase can still talk to the internet via ethernet to the router, but can’t get through the blanket of noise put up by the jammers to talk to the cameras. Any jamming on the 2.4 Ghz band will interfere with the camera to homebase connection unless its very narrow band. They are saying that if your homebase to router connection is done via ethernet, you won’t be subject to jamming. I think the support person doesn’t really understand how the Eufy devices communicate. The battery cams like 2C don’t have any local storage, so if they can’t talk to the homebase, for any reason, the event can’t be saved. Your test does duplicate what would happen when jamming takes place because the communication between homebase and cameras is broken. Unfortunately, any jamming or other high frequency noise in the 2.4 Ghz band will blanket the homebase use of those frequencies and disable communications with the cams. The simplest way you can catch a good signal is to move your router away from your neighbor’s router. You can turn off the wifi radio on the router and the homebase will still talk to the cams and record events.
Your test won’t really tell you anything as the homebase uses its own coms protocol to commincate to the cams and doesn’t depend on the router’s wifi radio. It would make some sense for homebase to choose channels 1 or 11 as they are the least likely to get adjacent channel interference in the US.
I’m not sure if this wifi channel is the same for all homebases or if they choose a frequency band when the first device is added. It also uses 915 Mhz to talk to sensors and keypads. I used a spectrum analyzer on my homebase signals and found that my homebase is using channel 11 of the wifi band to communicate with the cams. Eufy still uses the same frequency band as 2.4 Ghz Wifi for homebase to camera coms, they just use a slightly different protocol to save battery power. However, if your Homebase can’t communicate to the cameras becasue the wifi frequencies are being jammed, you won’t get any recordings. Currently, such devices are very popular in the United States.You are correct that the cameras don’t need internet to record to the homebase. And that's why you need to use GPS scrambler devices against GPS navigation, because navigation may expose your location to some organization that intends to gain your privacy. What you may not know is how many other seemingly unrelated systems rely on GPS signals, and you don't know how many places can be tracked by GPS to reveal your privacy. If you don’t have a GPS navigation system installed in your car, you probably have something like it on a standalone device from Garmin or TomTom or on your cellular phone. Global positioning system (GPS) technology has been around long enough - and is so widely used that we have come to take it for granted. That's why so many people need to buy this kind of equipment From the public's point of view, convenient GPS blocker can protect individuals' privacy and avoid the theft of personal privacy by government agencies and individuals. The lack of ground jamming could indicate that the device is airborne, but the FAA only concerns itself with airspace, so ground based jammers can't be ruled out. GPS jammer is nothing new – even the North Koreans have it – but this latest testing does look unusual. Almost everyone has one to protect their privacy The device is already popular in North America and most European countries. So GPS jamming devices are becoming more and more popular. As GPS applications become more widespread, GPS is increasingly being used to track and infringe personal privacy. 109 Comments by: Mike Szczys OctoElliot put together an intriguing proof-of-concept script that uses repeated deauthentication packet bursts to jam WiFi access points. The GPS satellites work with a GPS receiver which today can be found in individual handheld units, car navigational systems, boat navigational systems, highly precise commercial products and a wide range of military equipment. GPS uses 24 satellites that orbit the earth and send radio signals. It is used by individuals, commercial entities and the military for navigational purposes.
GPS stands for Global Positioning System.
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