Cell phones use radio waves to communicate. Radio waves transport digitized voice or data in the form of oscillating electric and magnetic fields, called the electromagnetic field (EMF). Radio waves carry the information and travel in air at the speed of light. Cell phones transmit radio waves in all directions.

In the living room / office:

• cordless telephones (DECTs): this is the most common type of cordless telephone in our houses. They use the 1900 MHz frequency band.
• Wi-Fi boxes: Wi-Fi is used in the home to connect various household devices (computers, TV…) to each other or to the internet by using radio waves.

Mobile phones communicate by transmitting radio waves through a network of fixed antennas called base stations. Radiofrequency waves are electromagnetic fields, and unlike ionizing radiation such as X-rays or gamma rays, can neither break chemical bonds nor cause ionization in the human body.

3 feet

Biological and environmental effects However, unlike infrared waves, which are mainly absorbed at the surface of objects and cause surface heating, radio waves are able to penetrate the surface and deposit their energy inside materials and biological tissues.

High levels of RF waves can cause a warming of body tissues, but the energy levels on the ground near a cell phone tower are far below the levels needed to cause this effect. So far, there is no evidence in published scientific reports that cell phone towers cause any other health problems.

Yes, humans, under special circumstances, can hear radio-frequency pulses in the range of 2.4MHz to 10GHz (corresponding to radio frequencies and microwave) as buzzes, clocks, hiss or knocking at apparent auditory frequencies of 5kHz and higher (very high-pitched).

So basically, if you could see radio waves, anything that involves technology would light up like a Christmas tree. If we were to look at the sky, astronomical objects that have a changing magnetic field would light up. So we would see the Sun, the Earth, Jupiter etc. The Red Planet has no magnetic field.

Humans cannot hear radiowaves because “hearing” is, by definition, sound waves. We have no apparatus to sense radio-waves in the brain. We do detect some radio-frequencies as heat, ie on our skin.

Materials that Block Radio Waves

• Wood.
• Ceramic.
• Paper.
• Plastic.
• Teflon.

Thin amounts of plastic wrap, wax paper, cotton and rubber are not likely to interfere with radio waves. However, aluminum foil, and other electrically conductive metals such as copper, can reflect and absorb the radio waves and consequently interferes with their transmission.

Along with 3G and 4G LTE, metal roofs deflect 5G signals the most because 5G uses higher frequencies that can penetrate metal the least.

Since it is made from metal, aluminum foil has the power to block radio waves. The thin sheet of metal acts as a shield and blocks the RF EMFs from reaching you.

Effect. Wrapping a cell phone in aluminum foil creates a Faraday cage. Because cell phone signals are electronic, the aluminum foil prevents the signal from reaching the cell phone.

Sadly, it doesn’t work. While wrapping the phone in foil would almost certainly create some degree of interference, it likely wouldn’t be enough to prevent the phone sending and receiving signals.

GPS devices are sometimes used by courts to monitor suspects, but they are not foolproof. “Offenders have learned that wrapping the GPS device in aluminum foil can make the GPS tracking points untraceable and disappear.” School science demonstrations show how foil can block radio waves and silence radios.

Using GPS blocker Find a GPS blocker that fits your needs and budget. The device can block GPS tracking devices from sending signals to its receiver. Be careful, though, some of these can block signals only up to few meters, while others can block several hundred feet, so make sure how much area coverage you need.

A very powerful magnet might harm your GPS unit. However, a magnet that strong would also reduce the iron in your blood cells. Some government employees might work near magnets that powerful, but for most people, everyday magnets will not affect your GPS or electronics.

Simply search “live GPS tracker” or “hidden GPS car tracker” to see what products are offered. From there, simply find the device that looks like the one you have. With that information, you will easily know who the owner of the GPS tracker is who put the device on your vehicle.

In short, an employer cannot track an employee’s whereabouts without their consent. If the employer gives notice and the employee consents, it’s likely that the employer can legally track their location. If not followed correctly, misuse of GPS tracking can lead an employer to court.

As far as company vehicle tracking and the law is concerned, the use of such systems is perfectly legal as long as they are used transparently (i.e. with the employee’s knowledge) and with the employee’s consent.

The short answer is yes, your employer can monitor you through nearly any device they provide you (laptop, phone, etc.).

Though it’s illegal for civilians to monitor others by tagging them with GPS devices without their knowledge, there are ways for people to track their spouses, friends and children that don’t involve spyware. “If it’s an ex-spouse, you could file a criminal case for stalking.”