East Grinstead
England · TV and DAB
Position 51.106550, -0.021601 Grid reference TQ38603600 Nation England Ground height 130 m Antenna height 24 m Aerial group Group A — C21–37, the low end of the band Polarisation Vertical BBC region London ITV region London ITV news region London Parent transmitter Crystal Palace Ofcom site number 10141 The position is our conversion of Ofcom's grid reference TQ38603600 from OSGB36 to WGS84 [V] . Ofcom publish no latitude and longitude for television sites. The transform is verified rather than assumed: on the 3,403 radio records that carry both, it reproduces Ofcom's own coordinates to within 0.1 m. This page treats East Grinstead and EAST GRINSTEAD as one mast. Ofcom's television and radio files share no site identifier, and the link here is inferred [I] from the name and position rather than confirmed. If they are in fact two structures a few hundred metres apart, the transmitter lists below are still each correct; only their being on one page is not.
How far it reaches The share of the UK's 238,895 Census Output Areas where this mast is the strongest signal of its kind. Not the share it reaches at all — most places can receive several transmitters, and only one of them can be the best.
This is a share of areas, deliberately, and not a number of homes. Checked against Ofcom's own published coverage, this model gets the ranking of transmitters right (Spearman 0.861) and over-states how far each one gets by a median factor of 2.5. A share is a ranking statement and survives that; a household count would not, so there isn't one. How this is worked out .
On the map
Television DAB radio
Where East Grinstead is the strongest signal for television and DAB radio.
Television This site carries the three public-service multiplexes and none of the three commercial ones, which is the normal arrangement at a relay — 1,059 of 1,169 sites are like this. Channels on SDN, ARQ A and ARQ B are simply not transmitted here, and no aerial will recover them; they need a main station. PSB3 (BBC B) is the UK's only DVB-T2 multiplex and carries every HD channel. Losing the HD channels while keeping the rest is therefore a single-multiplex fault rather than an aerial problem.
DAB radio BBC National DAB — block 12B
Transmitter data is Ofcom's; every dataset and the terms it is used under are listed under sources . Coverage figures are modelled, not measured, and are systematically optimistic .