High Quality
Broadband Amplifier Factory
in China
Premlink plays a vital role in designing and manufacturing CATV broadband amplifiers.
Premlink-Your Trusted CATV Broadband Amplifier Factory
What is a CATV Broadband Amplifier?
Premlink is a leading broadband amplifier factory in China. Cable TV RF amplifier is an electronic device that amplifies RF signals, designed for fast installation between two coaxial cables, mainly used to amplify the strength of RF TV signals. It is an important component in cable television systems, responsible for amplifying RF television signals, increasing signal levels, and compensating for the attenuation of television signals by passive components such as cables, splitters, and distributors in the system.
Premlink Broadband Amplifier Product Series by Features
The Role of Broadband Amplifier in CATV Systems
Improving Image Quality for Poor TV Signals
A household cable TV signal amplifier can amplify the TV signal to reduce snowflakes and improve image clarity when the TV image quality is poor.
Supporting Multiple TV Distributions
When the signal strength of connecting multiple televisions is insufficient, a home cable TV signal amplifier can first amplify and then distribute the television signal through multiple branches.
Enhancing Data Receiving Systems
Home cable TV signal amplifiers can reduce information error rates and improve reception speed for computer graphic and text receiving systems.
Wide Network Applications
Home cable TV signal amplifiers are used in places such as homes, buildings, shopping malls, hotels, etc.
Professional Design for Both Analog & Digital Signals
The household cable TV signal amplifier adopts professional device design, low noise, wide bandwidth, and is suitable for amplifying and distributing cable digital TV signals and analog TV signals.
Broadband amplifiers, such as PL8130 series line extenders, are placed in the right places in current HFC networks to keep the signal strong across the coaxial distribution leg. Their major duty is to make up for cable loss, which grows worse with distance and frequency, and insertion loss from passive parts like taps and splitters.
It’s crucial to place the amplifiers correctly (typically every 20–30dB of loss) and stage the gain correctly to maintain the Carrier-to-Noise Ratio (CNR) high and the distortion (CSO/CTB) low. Push-pull or GaAs technology is used to produce premlink amplifiers so that the last subscriber gets a clear signal. They make goods with little distortion and high output.
Why Broadband Amplifier is Important？
The Challenge of Signal Attenuation and Noise
After a certain distance of transmission, RF signals must be attenuated and continuously amplified. However, with each level of amplification, TV signals will increase noise.
Impact on Network Quality and Coverage
Optical equipment has little impact on the signal, but amplifiers will have non-linear distortion to some extent. The working state of amplifiers directly affects the quality of images and sound in cable TV networks, affecting the coverage range of limited TV, especially in the case of mixed transmission of analog TV and digital TV. How to debug amplifiers is even more important.
Frequently Asked Questions (FAQ) about Broadband Amplifier
People often use the terms “line extender” and “trunk line” to mean the same thing, but a line extender (like our PL8130A) is made to be put along a trunk line to boost signal levels so that they can reach longer distances or feed more taps. Any amplifier used in the CATV network, such as distribution amps and line extenders, can be called a broadband amplifier. Both of them do the same thing: they amplify the whole RF spectrum (that’s why it’s called “broadband”) that goes through the coaxial cable.
ou usually need an amplifier if: 1) The signal levels at the subscriber taps are too low (for example, for modems, they should be less than 0 dBmV, or you should see “snow” on TV channels). 2) You are splitting the signal to send it to a lot of TVs, and the splitter loses too much signal strength. 3) You are making your network bigger than the last amplifier or node could reach. A reading from a signal level meter at the farthest point will confirm the need.
Yes, for sure. Modern CATV broadband amplifiers are made to pass the whole downstream frequency range, which usually goes up to 1002MHz or 1218MHz. This includes both analog and digital (QAM) channels. But the amplifier needs to work well enough (especially when it comes to distortion) to handle the high peak-to-average power ratio of digital signals without making mistakes. This is what our PL series amplifiers are made for.
Yes, we are an amplifier factory that makes a variety of models with different gain levels, output capabilities, and housing types (indoor/outdoor) to meet the needs of different networks. We can also talk about custom setups for big projects. To let us know what your network’s power needs, frequency range, and environmental conditions are, click “Get a Quick Quote.”