This guide explains what a masthead amplifier is, how to install one correctly with the right power supply, and how to avoid common problems with signal overload and poor connections.
- Masthead amplifiers boost signal at the source to minimise cable loss.
- Use the correct power supply and ensure DC can pass through splitters or wall-plates.
- Install the amplifier close to the aerial, leaving about 1 m of coax cable between them.
- Avoid over-amplifying in strong signal areas to prevent distortion.
- Weatherproof connections and keep the power unit secure from accidental disconnection.
If you have poor quality TV signal in your home, one potential option for boosting the signal would be to install a masthead amplifier. This is a type of signal booster that helps to optimise whatever signal may be available to you, without the need to replace your aerial.
If you’re exploring amplification options, you might be wondering if this is something you can manage on your own, or if you need professional support. To give you the short answer, we would always recommend professional installation when it comes to any aerial installation or associated signal booster.
Let’s explore why in more detail…
What is a masthead amplifier?
A masthead amplifier helps to boost the TV signal at the TV aerial, where it is the strangest. It works by absorbing the signal received by the aerial and then sending it through the coaxial cable to your TV already amplified.
When the signal is sent down the coaxial cable, it is typically weakened, which can lead to poor picture or sound quality when your TV aerial signal is already weak.
This electrical device amplifies the signal before it is sent down the cable, helping to improve your reception quality.
Why do you need professional installation?
It requires technical expertise and experience to know how to install a masthead amplifier in the optimum way. Choosing professional installation is not just about getting someone else to do the work for you – it’s about making sure that the work is carried out in the best possible way, to ensure you enjoy the optimum outcome.
The amplifier needs to be placed at the optimum point in the system to ensure it is able to capture the signal at its strongest point. This will help to maximise the effectiveness of the amplification.
Since this is an electrical apparatus, it’s also important that the amplifier is installed safely. The amplifier will need its own power source, and this isn’t something that you should be attempting to install without professional insight.
Prevent Overload
If the signal is already strong, too much amplification can distort reception. Use adjustable gain or attenuators if needed.
Reliable Power
Keep the power supply safe, weather-protected, and secure. A disconnected PSU will cut signal to all connected TVs.
Do you have the correct tools?
If you’re determined to carry out a DIY installation, you need to ensure that you have the correct tools available. A signal meter is an essential purchase that will help you to determine where to place the amplifier and whether or not it is working correctly. However, this is a tool you’re unlikely to ever need again. If you don’t already own the correct tools, you can save yourself money on the installation by hiring a professional.
Working with a professional will also offer you some guarantees that the masthead amplifier will fix your problems. If the method is ineffective, you’ll have access to insight from the installation team, and they might be able to offer further solutions to help boost your signal.
In some cases, you might not need a masthead amplifier at all, and a simple adjustment of your aerial to account for interference from sources like LT or Tetra systems could help to boost your signal without the need for further equipment.
Final thoughts on masthead amplifiers
If you are confident in your DIY skills and can access the tools you need, you may be able to install your own masthead amplifier through a trial and error method. However, if you want to be confident that you’re capturing the signal at its strongest point, then professional installation would be better.
If you’re struggling with poor reception and are wondering about the options available to help you to boost this, then get in touch with our team. We can help you to optimise your TV aerial signal, and this could include an amplifier, or we might be able to offer other recommendations.
FAQs
▶ What voltage power supply is needed?
Most domestic masthead amplifiers use 5V or 12V DC. Always check the specification before connecting.
▶ Can I use any splitter or wall-plate?
Only use DC-passing splitters and wall-plates between the PSU and amplifier, or the unit won’t receive power.
▶ How close should the amplifier be to the aerial?
Ideally mount it on the aerial mast with around 1 metre of coaxial cable between the aerial and amplifier.
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