Find your Freeview transmitter by postcode.
Your address can identify the transmitters most likely to serve you. The closest mast is not automatically the best choice, so compare coverage, direction, polarisation and the channels available before altering an aerial.
How do I find my Freeview transmitter?
Start with a postcode prediction, then compare the suggested transmitter with your aerial’s direction, polarisation and the channels available in your region. The nearest transmitter is not always the best choice because hills, buildings and local terrain affect reception. Use the result as guidance, then confirm signal quality on your television.
How to check your likely transmitter
Use a full address
A house number and postcode give a more precise prediction than a postcode area alone. Flats and shared systems may use a communal aerial.
Review alternatives
Compare the most likely transmitter with other options. Look at predicted reception, distance, direction and available services.
Check your television
Use the signal quality display and the channels you receive to confirm what works at your installation.
Nearest does not always mean best
Transmitter distance is only one factor. Hills, buildings, trees, local interference and the height and condition of your aerial system can all affect reception. A more distant main transmitter may provide better predicted coverage or more services than a nearby relay.
Treat any postcode transmitter checker as a starting point. It cannot measure the signal arriving at your aerial or inspect the condition of your cables.
Information worth checking
Compass bearing
The direction from your location to the transmitter, measured clockwise from north.
Polarisation
Whether the aerial elements should sit horizontally or vertically for that transmitter.
Coverage and services
The predicted reception and channel groups carried by the transmitter can differ between locations.
Using UK Aerial Helper
UK Aerial Helper supports GPS or postcode entry and provides a live compass and bearing map for approximate main transmitter information. Use it to understand direction, then confirm reception through your television. Its dataset is a practical guide rather than a guarantee of service at an individual property.
Frequently asked questions
Can a postcode tell me exactly which transmitter I use?
No. It can produce a coverage prediction, but an existing aerial may point elsewhere. Local terrain and the installation itself affect the result.
Why does my neighbour use a different transmitter?
Properties close together can still have different lines of sight, aerial heights or historical installations. Do not copy another aerial without checking the prediction for your address.
Where can I check official Freeview coverage?
Use Freeview’s detailed transmitter information for current address-level predictions and UHF allocations.
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