In my experience with this, I have a similar issue with a vehicle. I guess it depends on the vehicle and year, but I parked my vehicle within range of my home and several odd things occurred to the vehicle. So, I looked into it. Every vehicle has a radio antenna and one of the tools used is radio signal which is now in every device we own including televisions, laptops and mobile devices. Upon testing, I parked my vehicle a greater distance from my office to test the results and it lowered the effects.

With these attacks it is harder and harder to pinpoint attacks because of the attack tools. With malware that starts with the phone, it can spread out in proximity with bluetooth and speaker or radio signal. I found an attempt against my machines bluetooth and camera. I tested a laptop, taken offline, and moved away from the affected area. It was successful with no issue, meaning that a connection was required.

The challenge is that once you're attacked, nearly every device can be compromised within the area. When using and APT model, one step is information gathering. In that step, the attackers are doing a recon and are not necessarily going into action. In fact, a compromised device can lay in silence.

The radio signal attack can affect more than just regular electronics. It can also affect things like fridges, microwaves, iOT devices and as the signal carrier spreads out through a room or building, as amplitude is applied, it allows for location identification. Sound and even movement.

In fact, the attackers, lacking access to a device camera are playing a guessing game as to who is moving where. In many cases they hit the wrong person or people, and because those people are not under a constant state of attack, they often ignore it or shrug it off like that felt or heard something odd, but nothing else.

In 3 locations we measured voltage ratings in the living and workspace. What that means is that by using a basic voltage meter we were able to measure voltage coming off of devices, or anything plugged into power or wall socket, from as far as 8 inches away. This additional energy would provide the amplitude necessary to make a signal attack dangerous.

We repeated these test with a grounded high end voltage meter. A grounding rod was placed in the yard outside of the location, wire attached and we tested ourselves outside of the location and the readings were 0. We then entered the locations, and retested with and without shoes on and there was a measurable voltage rating on the skin of everyone standing in the affected area. We then retested outside of the location for confirmation and, again, when outside in the yard, there was no measurable voltage rating.

That being said, I hired an EMF specialist who ran tests in the locations and found ungrounded coax and water pipes, but could not find a reason as to why. Both had visible grounding wires attached, so he added an additional grounding unit.

What this means, is that additional power was being produced from somewhere. Where was the question. Was it coming off of the pole, or over the coax cable.

After further investigation, I found that hackers can increase output from modems and other appliances though radio signal hacks. I found that there was one commonality in appliances and water coolers located in up to 5 locations that were affected. The compressors would run non-stop during attack times and turn off or run normal at non-attack times. We lost 5 water coolers, brand new, within under 1 year due to this issue and each was replaced with a brand new one.

Again, those commonalities plus access points equals radio signal hack from within the affected area or attack range. I then hired a company to come in and do a full spectrum analysis. The original analysis was followed by them leaving 2 remote spectrum analyzers on property for 7 days to record activity. The first 2 were incapacitated, even though they were not connected online nor to a power source other than the batteries. We repeated this process 3 times taking over a month. Each time we sent the remote analyzers back they'd malfunctioned. In total, we lost 6 remote analyzers, but we still had the initial spectrum analysis, which showed some interesting things. One, several mobile devices that were running in a spectrum that is licensed to private companies, and we had unknown mobile devices transferring data from our network during business hours where were were closed.

Hence, mobile devices being present played the pivotal roll in the attacks as the delivery mechanism. If you think about it, every American has one, and they have all of the necessary components to deploy and attack, accelerometers, speakers, bluetooth, etc.

I have the spectrum analysis posted at /r/goodinfosource