Northampton Digital A.I.S.
Most aerials in our county point towards the Sandy Heath transmitter. Our analogue TV channels (BBC1, 2, ITV & C4) are broadcast on frequencies (channels) 21 to 31. To Give the best reception possible aerials were fitted to give maximum gain from these frequencies only.
Our digital TV channels are broadcast in the higher frequencies (channels 40 to 67).
To enable you to recieve digital TV you will need an aerial that picks up from all of the channels in the TV frequency range (channels 21 to 68). This type of aerial is called a wideband aerial.