The atmosphere of Earth is so much windily spread that before reaching the space, there are a lot of layers and regions that come first. In the atmosphere and on the earth, there are some regions where signals are unable to reach. If you are in the middle of a large dessert; you will be unable to connect to the world through your mobile or radio there. It is because the signals are unable to reach that area. In this article, we will talk about a similar kind of zone where the signals are unable to reach known as the skip zone.
The second name of skip zone is known as silent zone. It is called the silent zone because it is silent regarding the transmission of the signals. In this zone, the radio transmission finds difficulties in reaching. The signals are transmitted where the transmitters are nearby. But in the skip zone, there is no transmission of the signals. The radio waves can travel in both directions; either it is upwards towards the ionosphere or travels along the ground. The waves that move upwards towards the sky are known as sky waves, and the eaves that move parallel along with the ground are known as ground waves. These waves transmit in every zone and region in the atmosphere, but when they reach the skip zone, they cannot be transmitted. Even the Marine VHF Radio is unable to transmit its waves through the skip zone. The same is the case with mobile HAM radio and CB Radios.
The skip zone does not allow the radio waves to transmit through it. However, there is a way that can cause problems for the skip zone. As the skywave is also transmitted through the skip zone, if the skywave’s refractive index angle is increased, it will affect the skip zone. Moreover, the width of the ionosphere can also affect the skip zone. If the size of the ionosphere increases, then the skip zone will get affected by it. Now, you may be thinking that how you can increase the size of the ionosphere. Technically a human can’t change the size of the atmosphere. But some natural processes can change the width and size of the layers automatically.
Sunspots and solar flares can affect the size of the ionosphere. If a greater number of solar radiations pass through the ionosphere, then the size of the ionosphere will increase. It will become wider. If the ionosphere gets wider, then the skywave will refract, and the size of the skip zone will be diminished by it. It will also absorb the signal strength. Moreover, if you decrease the frequency of the radio waves, then the skip zone will also diminish.
In short, we can say that the skip zone is a region where the transmitter does not receive the signals of the antenna. The information mentioned above was all regarding the skip zone, and I hope it will help increase your knowledge about it.