Obtaining a cell phone signal in a dead zone?

some, but very few, cellphones have an external antenna connector.

It looks like a tiny coax connection, which usually fits in car systems.

The cellphone can use the car antenna to have a better reach.

I don't know of any antenna's or systems for cellphones for a better reception.

I do know some companies sell $20 golden stickers for a better reception.

They do work, in general gave me 1 to 1,5 bar more reception on 5 bars (1 bar becomes 2 or 3; 3 bars become 4).

They work in the same way an RF receiver works in store product alarm systems.

see link below.

*Edit: they do tend to wear out over time though, the golden paint wears off depending on how you use it, if you carry the cellphone in a pants tight pocket, they may last only 4 months, if you leave the cell on a closet and only keep it in the hand when you call they could last a good few years.(like 2 or 3).

Works also with wifi.*

2

The Mobile phone signal (or reception) is the strength of the connection the mobile phone has to its network. Depending on various factors, such as proximity to a tower, the signal may vary. Most mobile devices use a set of bars of varying heights to display the strength of the signal where the device is located. Traditionally five bars are used. Generally, a stronger mobile phone signal is easier to obtain in an urban area, though urban areas do have some "dead zones" where a reception cannot be obtained. On the contrary, many rural or minimally inhabited areas lack a signal or have a very weak reception, but many mobile phone providers are attempting to set up towers in parts of these areas most likely to be occupied by users, such as along major highways. Even some national parks and other popular tourist destinations away from urban areas now have cell phone receptions. In an area where the signal would normally be strong, certain other factors may have an effect on the reception, thereby making it either stronger or weaker, or may cause complete interference. For example, a building with thick walls may prevent a mobile phone from being used. Many underground areas, such as tunnels and subway stations, lack a reception. And the weather and volume of network traffic may impact the strength. It is also possible to block the signal with a mobile phone jammer. However, these are outlawed in many countries.

Call and ask if you qualify for a signal booster

Verizon isnt that bad..