UK mobile phone base station locator

Mobile phone masts seem to be springing up everywhere, and knowing where they are can be a really benefit in avoiding their transmissions.  Sitefinder is the Government's data base of mobile phone base stations.  It is, "a general resource for people wishing to inform themselves about the location and operating characteristics of mobile phone base station sites around specific locations."

Base stations will be displayed as blue pins when the map is zoomed in.

Be aware however  that base stations can be located on or in buildings, street furniture (lamp-posts / cabinets), roof-tops, individual or shared masts or may be hosted by other masts such as broadcast radio or TV masts.  A Sitefinder entry does not therefore imply the presence of a mast, only a base station transmitter.

The site is no longer maintained, the last Sitefinder update was applied in May 2012.

Information Provided on Sitefinder Database:

Name of Operator	The name of the organisation that operates the transmitter.
Operator Site Ref.	This is the operators unique base station name or reference number.
Station Type	Microcell or Macrocell. A Macrocell is normally associated with a mast or other structure supporting a large antenna designed to give coverage over a large area; a Microcell is a low power station, often using unobtrusive antennas, designed to give coverage over a small localised area.
Height of Antenna	Metres above ground level (NB. this will be the height of the antenna, not necessarily the height of any supporting mast or tower).
Frequency range	In the UK the following frequency bands are used for cellular telephony: MHz 380 - 385 TETRA 390 - 395 TETRA 876 - 915 GSM / 3G 921- 960 GSM 1710 -1781 GSM 1805 -1876 GSM 1900 - 1980 3G 2110 - 2170 3G
Transmitter power	Effective Isotropic Radiated Power (EIRP dBW) per channel. Equivalent isotropic radiated power is the maximum power out of the antenna in a given direction (usually a few degrees down from the horizontal). This is the design power for the particular channel, during quiet periods the power may be less than the stated EIRP. The antenna acts to focus the radio beam, like a lamp reflector, therefore the maximum power will appear in a particular direction. The power in other directions, such a vertically downwards is sometimes significantly less. dBW. A dBW expresses power in relation to a reference level of 1 Watt. Examples: 30dBW = 1000 Watts 20dBW = 100 Watts 10dBW = 10 Watts
Maximum licensed power	EIRP dBW per channel. The maximum licensed power is the highest power that would ever be permitted from a particular transmitter. In practice, most transmitters operate substantially below this limit.
Type of Transmission	Various types of cellular technologies operate in the UK including: GSM is the Global system for Mobile Communications or Groupe Speciale Mobile. This is the international operating standard for the second generation of digital cellular mobile communications. GSM-R is a variant of GSM providing operational and safety functionality to national railway communications. Universal Mobile Telecommunication System (UMTS), commonly known as 3G, is the third generation of digital mobile phone technology. LTE is a standard developed by 3GPP (Third Generation Partnership Project), based on GSM/UMTS technology with increased capacity and speed. Terrestrial Trunked Radio (TETRA) is a digital mobile service that combines two-way radio, mobile telephony and messaging in one handset. It is designed to be used by professional groups such as field service teams and the emergency services. The TETRA handsets can communicate directly with each other when outside the reach of a cellular base station.

Source: http://sitefinder.ofcom.org.uk/search