Radio Aerials – DAB aerials

Radio Aerials – DAB aerials – Aerials for radio

FM Aerial


Radio Aerials – DAB aerials are aerials for radio transmission.  When installing a radio aerial – DAB aerial it is advisable to use a good quality and branded aerial. This will guarantee that the aerial will be of good construction and therefore better performance.

Excellent signal is key to recieving the best quality radio aerial reception, a faulty radio aerial could create hissing and distortion on FM, and breakup or lose reception on DAB digital radio.

It is advised to use a directional FM radio aerial – DAB aerial rather than an omnidirectional type (often called a ‘halo’ due to their shape). Omnidirectional aerials are most commonly fitted as they are easy to install, however there are disadvantages. Omnidirectional aerials recieve signal from all around the compass but aren’t very powerful.  When comparing the two, directional radio aerials bring in more signal from the transmitter that they point at and are less likely to provide a weak signal or hissy reception.  These are strongly recommended as omnidirectional radio aerials are also more prone to gritty sounding distortion from the multipaths that are picked up.  Always ensure the aerial is correctly aligned and has the right polarisation (elements vertical or horizontal) as well as being mounted securely.  It is also advisable to choose an aerial which includes a balun matching device if you are near a main road – this will reduce any interference from passing traffic.  When mounting the aerial outdoors it needs to be as high as possible: the FM radio network in the UK is designed to be received in stereo on outdoor aerials. Loft aerials only work well if signals are strong and the loft is free of clutter. Aerials inside the housegenerally  perform badly by comparison and may only be good for mono reception.  Try to avoid pointing into nearby trees and use quality cable for the downlead, secure it to the pole and route it into the property ensuring it doesn’t flap around. Avoid cornersor installing cables under tiles etc, keep the cable as short as possible.  DAB aerials must be used for digital radio.  If you have an external aerial and your reception has deteriorated always check these factors:

  • Does the aerial appear to be damaged or bent?  If it is, replace it.
  • Does it appear to have moved but is otherwise undamaged, re-aligned and secured it.
  • Does the cable appear cracked, feels damp or is the inside of the plug going green?  If so replace them.
  • If your aerial is more than 10 years old, it may corrode and the performance will be diminished. This is especially true in coastal locations.

For DAB aerial installations its advisable to arrange for a professional installer.

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