Two Way Radio Antenna
Two Way Radio Antenna
What is two way radio antenna?
An antenna is a device used to transmit or receive radio waves. In transmission, a transmitter applies an electric current to the antenna, and the applied time-varying voltage or time-varying current creates a radiated electromagnetic field that converts the energy of the current into radio waves. In reception, the antenna generates a time-varying current inside the antenna and a time-varying voltage at its terminals due to the induction of an electric field, which produces a signal that can be viewed or listened to in the receiver after processing. Antennas are widely used in communication systems such as broadcasting, point-to-point radio communications, radar and space exploration. Antennas are essential components in radio communication systems.
Why need two way radio antenna?
Antennas are used to help extend the range of your two-way radio. The range is how far your two-way radio can communicate. Improving your antenna will allow you to communicate across larger distances.
What are the two types of radio antennas?
There are two types of antennas: directional antennas and omnidirectional antennas
Omnidirectional antennas (radiate evenly in a plane)
Directional antennas (also known as pointing antennas, which radiate more in a certain direction)
In free space, any antenna radiates energy in all directions, but a particular architecture will cause the antenna to gain more directionality in one direction, while the energy radiated in other directions can be ignored.
How to Choose the Right Two Way Radio Antenna?
If you have a two-way radio and want to replace the antenna, you will be faced with many different choices. There are three main types of radio antennas that we often come across on the market:
Whip Antennas; These antennas are seven to eight inches long and are usually known for their high gain, so the two-way radio has a greater coverage area.
Stubby Antennas; These antennas are three to four inches long - shorter and with less interference. Depending on the frequency, talk range is usually sacrificed.
Helical Antennas; These antennas vary in length and are thicker, providing great coverage for your two-way radio experience.
Once you understand the types of antennas and their characteristics you can make your choice. The following factors need to be considered when making your selection
1. Based on frequency
In order to achieve maximum performance from your walkie-talkie, you need to make sure that the antenna covers the frequency band of your radio.
2. Frequency band
If you are using the VHF band, then you will need a higher gain antenna. You can choose either a helical antenna at this time.
If you are using the UHF band, then a whip antenna or a segment antenna will be your best choice.
3.Usage Scenario
Whip antennas are favored by users because they can increase the range to a greater extent. However, because whip antennas are long many users prefer shorter antennas instead of longer ones.
About Retevis Two-Way Radio Antennas
Enhance your coverage with a Retevis handheld/portable radio antenna.Retevis offers a wide variety of antenna options to meet your needs. Our portfolio includes a wide range of mounting types, GPS capabilities, directional and omni-directional, and more.
