Sudbury transmitting station

Sudbury
	Sudbury transmitting station (Suffolk)
Mast height	165.8 metres (544 ft) (Mast 1); 103 metres (338 ft) (Mast 2)
Coordinates	52°00′15″N 0°47′09″E / 52.004167°N 0.785833°E
Grid reference	TL913377
Built	1967-1968
BBC region	BBC East
ITV region	ITV Anglia

The Sudbury transmitting station is a facility for telecommunications and broadcasting transmission at Sudbury, England. It consists of two guyed masts, one, the original, being 165.8 metres (544 ft) high, and a second mast (no longer in service) at 103 metres (338 ft). They have antennas attached at various heights. It is situated 14 miles WSW of Ipswich at a site height of 70m. All 6 Digital TV MUXES are transmitted from Sudbury using an omnidirectional pattern at an ERP of 100 kW. Originally Sudbury was a B group transmitter but in order to accommodate the digital transmissions it went E group then, at its 700MHz clearance in August 2018, it ended up a K group (or wideband). However, most B group, E group and wideband aerials will continue to work fine on it (see graph).

It broadcast television and radio services to central and southern Suffolk and most of Essex, however southern areas of the county received a better TV signal from the Crystal Palace TV transmitter. Signals can also be received as far as north Kent.

Services available from this site

Digital radio

Frequency	Block	kW^[1]	Operator
222.064 MHz	11D	1	Digital One
225.648 MHz	12B	2.4	BBC National DAB
229.072 MHz	12D	1	NOW Essex

Digital television

Frequency	UHF	kW	Operator	System
538.000 MHz	29	100	SDN	DVB-T
554.000 MHz	31	100	Arqiva A	DVB-T
602.000 MHz	37	100	Arqiva B	DVB-T
634.000 MHz	41	100	Digital 3&4	DVB-T
658.000 MHz	44	100	BBC A	DVB-T
682.000 MHz	47	100	BBC B	DVB-T2

Aerial group K is required to receive all channels.

Before switchover

Frequency	UHF	kW	Operator
618.000 MHz	39	7.5	BBC (Mux B)
690.166 MHz	48+	5	SDN (Mux A)
698.166 MHz	49+	7	BBC (Mux 1)
706.166 MHz	50+	1.1	Arqiva (Mux D)
738.000 MHz	54	1.5	Arqiva (Mux C)
754.000 MHz	56	1.1	Digital 3&4 (Mux 2)†
850.000 MHz	68	8.1	Digital 3&4 (Mux 2)

† Low power transmission from Sudbury B.

Analogue television

Frequency	UHF	kW^[2]	Service
583.25 MHz	35	50	Channel 5
631.25 MHz	41	250	Anglia
655.25 MHz	44	250	BBC2 East
679.25 MHz	47	250	Channel 4
711.25 MHz	51	250	BBC1 East

Aerial group: B
Polarisation: horizontal

References

↑ Radio Listeners Guide 2010
↑ Television Viewers Guide 2009

External links

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[1] Radio Listeners Guide 2010

[2] Television Viewers Guide 2009

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