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Signal boosters may cause TV reception problems

Take care using signal boosters to amplify a TV signal or send a signal to more than 1 TV. They can cause reception problems for you and interfere with other TVs in your area.

Masthead amplifier

One type of signal booster is called a masthead amplifier. It is attached to your antenna to amplify the weak signal if you are a long way from the transmitter or if tall buildings, mountains or trees get in the way of your TV signal. It is a small grey or black box attached to the antenna. 

If mySwitch predicts that you live in an area with variable poor coverage, you may consider installing a signal booster.

Signal boosters may cause reception problems

Signal boosters or masthead and distribution amplifiers can cause reception problems. They cause 3 main types of reception problems:

  1. TV signal overload: high level signal makes the amplifier distort signal it is receiving.
  2. Mobile phone signal overload: high level mobile phone signals, such as 4G, can make the amplifier distort the TV signal it is receiving.
  3. Interference: a faulty signal booster can reradiate signal through TV antenna. This will cause interference to TVs in the neighbourhood or other communication services like mobile phones.

We recommend you seek professional help from an antenna installer to fix amplifier faults.

Get advice

Before you install a signal booster talk to a local antenna specialist to see if you need it.

You might not need a signal booster. You might need to change to an antenna that best suits your location.

Your amplifier needs to have a filter

If the antenna specialist thinks you should use a signal booster, make sure it has a filter to stop interference from mobile broadband signals. Make sure it is also set up correctly so that the gain is at the required level and it is the right amplifier for the location.

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