Hello Questers,

Hope you're all doing well. Have you ever experienced signal issues inside tunnels, chambers, or lifts? Here's why:

Most mobile towers struggle to provide network coverage in these areas.

Elevators, in particular, act like "Faraday cages," severely disrupting phone signals or blocking them entirely.

This is due to the metallic frames and walls that create a Faraday cage effect, leading to signal loss and "dead zones" for cellular phones, radios, and other devices that rely on external electromagnetic signals.

Firefighters and first responders are trained to expect that their two-way radios may not work inside elevator cars and to prepare for this possibility. Electronics engineers also use small Faraday cages during equipment testing to ensure devices can handle such conditions.

Furthermore, electromagnetic radio waves cannot penetrate areas where their passage is obstructed. In basements, most waves are reflected, absorbed, and attenuated, resulting in poor reception. The ability of signals to penetrate tunnels and cellars depends on how well they can diffract relative to the size of these structures.

According to sources on mobile signals, underground areas like tunnels and subway stations will lack reception unless they are specifically wired for cell signals.

Here's a simple experiment to try, but please proceed at your own risk:

1. Completely cover a smartphone with aluminum foil, shaping it closely to the device.

2. Now, try calling the covered smartphone from another number.

You will notice a difference in how the phone receives the call.

Solution:

Avoid making calls in elevators unless it's an emergency. To prevent confusion, inform your close ones before entering such places.

I hope you all enjoy this! Please share your thoughts in the comments section.

PC:Google

Signing Off 

Your Superb Qool Quester 😎 

@JStreetS  

Best Reviewer Of the year

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