Indoor aerials: How we test indoor aerials

Lab testing

We test in the lab

Our exhaustive mix of tests in the laboratory and in real homes, aims to find out which aerials pick up the most channels and work best with a weak signal.

Initial lab tests take place in a radio-frequency test chamber, but our experts then ups sticks (and aerials) and moves to some domestic surroundings: houses in Milton Keynes, Hemel Hempstead and Finchley. Each location is served by different types and strength of TV transmitter.

Home testing

 . . . and in the home.

Working in different rooms and on different floors, we find the optimal position and angle for each aerial. We note how critical this positioning is for a good picture, while tuning into six TV channels (one from each multiplex) plus two radio stations.

A total percentage score based on the combined performance across all multiplexes in all three locations helps us identify the Best Buys.

Best reception

Best reception will always be achieved by using a rooftop aerial but this isn't always possible if, for example, you live in a block of flats. Reasonable reception from an indoor aerial can only be achieved in a strong signal area but by choosing a Which? Best Buy you'll be maximising your chances of getting good quality pictures and sound. 

Visit www.freeview.co.uk first and do a postcode check to ensure that you live in the Freeview coverage area but be aware that this site assumes that you have a rooftop aerial so reception using an indoor aerial may not always be possible.