Radio repeater is a two-way wireless device used to extend the communication range of walkie-talkies. Depending on various classification criteria, wireless repeater can be categorized into analog repeater s and digital DMR repeaters. Analog repeaters are compatible with analog radios, while DMR repeaters are designed for use with DMR radios, but are also compatible with analog ones. Additionally, radio repeater can be further divided based on different frequency ranges, including UHF, VHF, and GMRS frequency band repeaters, which can be paired with corresponding frequency range two way radios. It’s important to note that PMR446 radios cannot be used with repeater, that means that there is no PMR446 frequency repeaters.
Regarding the power of repeater stations, there are various options available in the market, such as 20W, 25W, and 40W repeater stations. For example, the Chierda 10W repeater station can extend the communication range of a 10W walkie-talkie to approximately 20-25km in urban areas, making it a highly practical wireless two way device suitable for use in farms, construction sites, and forestry.
The Chierda V9, as a low-power mini repeater station, offers unique advantages compared to other repeater stations available in the market, that’s:
- Compact and lightweight, easy to carry.
- Have a Built-in duplexer.
- Available in both analog and digital DMR repeaters.
- Can chose UHF, VHF, or GMRS repeaters.
- Have dual time slot function
Unlike other high-power repeater stations on the market, the V9 is a mini 10W repeater with a small and lightweight design. Its sturdy metal casing, combined with a durable leather handle, ensures it is easy to carry, whether by hand or on your back. Furthermore, Chierda offers a dedicated V9 carrying case, capable of accommodating the repeater station, mobile power station, car antenna, and hand microphone. This allows for convenient and compact transportation, whether by car or on foot. The robust metal casing makes it highly durable and resistant to impacts.
The duplexer is a critical component of a repeater station. Some may wonder if a repeater station can function without a duplexer. The answer is yes, but it would require more antennas to be installed externally. This is where the advantage of having a built-in duplexer in a repeater station becomes apparent. With an internal duplexer, a repeater station only needs an external antenna, which can be a glass antenna or a car antenna, for example. Without a duplexer, a repeater station would require four external antennas, making installation more complex and costly. Chierda’s engineers preset the duplexer’s frequency points before shipment, ensuring it is ready for immediate use. In addition, we provide professional installation instructions and videos, making it easy for users to install the repeater station without any concerns.
Furthermore, our digital repeater stations offer a hidden feature – when paired with the Chierda HD1 DMR digital radio, they can activate the time slot function, dividing one channel into two, which do not interfere with each other. This greatly enhances the efficiency of radio channel usage. Feel free to contact us for more information!
Now, let’s discuss how repeater stations work and why they can connect multiple walkie-talkies simultaneously. We all know that walkie-talkies must operate on the same frequency and channel to communicate, meaning their transmit and receive frequencies must match. However, repeater stations work differently – their transmit frequency and receive frequency must be opposite. Why is this the case?
Let’s assume the frequency of walkie-talkie 1 is 1. When walkie-talkie 1 transmits a signal to the repeater station, which acts as the receiver, its receive frequency is also set to 1. Meanwhile, walkie-talkie 2 is waiting for the repeater station to amplify and relay the signal from walkie-talkie 1. In this scenario, the repeater station uses its built-in duplexer to convert and amplify the signal before transmitting it as if it were the transmitter to walkie-talkie 2. This is how repeater stations can connect multiple walkie-talkies simultaneously.
However, in practical use, there are instances when two walkie-talkies are outside the range of the repeater station, resulting in communication issues due to the mismatch between transmit and receive frequencies. This is where our HD1 walkie-talkie comes into play. The HD1 features an offline mode, meaning that when walkie-talkies are out of range of the repeater station or in case of repeater station failure, it can automatically adjust its transmit and receive frequencies, allowing it to communicate even when outside the repeater station’s range. This feature greatly enhances convenience.
Finally, let’s talk about the installation of repeater stations. Repeater station installation requires antennas, feedlines, mounting equipment, and a mobile power source. The length of feedlines and antennas, as well as installation height, often depends on the user’s specific needs and usage environment. It is advisable to consult with professional sales representatives for guidance. Generally, the higher the installation height of the repeater station, the wider the coverage area and the greater the communication distance it can achieve.
Simply inform us of your usage environment and desired range, and our sales representatives will promptly provide you with the most suitable advice.