Stockland Hill digital TV transmitter (no analogue)

Stockland Hill digital switchover schedule

Note: This is the only schedule for digital switchover. Digital services cannot be introduced before the dates listed for "testing purposes" as they will generally use the same transmission frequencies as the services they replace. Another alternative, available today, is Freesat.

For full details of the existing Freeview services on the Stockland Hill transmitter, please click on Stockland Hill Freeview transmitter.

May 2009 S M T W T F S - - - - - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 - - - - - -	BBC One South West, BBC Two England, ITV-1 Westcountry and Channel 4 analogue switched off. It will be necessary to perform a full rescan of your Freeview box on this day.
April 2010 S M T W T F S - - - - 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 -	The following Freeview digital services will be available: 50 BBC HD 51 ITV1 HD 52 Channel 4 HD It will be necessary to perform a full rescan of your Freeview box on this day.

Transmission frequencies

Before Sunday 15th November 1998

C23	C26	C29	C33
ITV1	BBC TWO	C4	BBC One

Sunday 15th November 1998 to Wednesday 6th May 2009

C22-	C23	C25-	C26	C28-	C29	C30+	C32-	C33	C34+
Mux 1	ITV1	Mux A	BBC TWO	Mux 2	C4	Mux C	Mux B	BBC One	Mux D

After Wednesday 20th May 2009¶

C22-	C23+	C25-	C26+	C28-	C29+	C30
Mux ArqA	Mux D3+4	Mux SDN	Mux BBCA	Mux ArqB	Mux BBCB	Mux NEW7

¶ NOTE: SDN, Arqiva A and Arqiva B are expected to operate at 10kW until 2012.

Colour bands denote aerial groups: Red:A Yellow:B Green:C/D Brown:E Grey:K Black:Wideband

Notes

'Out of group' frequencies are marked with a star. Analogue power output 250,000 Watts, post switchover average digital multiplex output will be 25,714 Watts.

To receive signals from this transmitter, the aerial must be mounted for horizontal polarization - the elements going from left to right.

Before switchover, the public service broadcasting multiplexes were 1, 2 and B; afterwards they were first PSB1, 2 and 3 but now called BBCA, D3+4 and BBCB. The commercial multiplexes A, C and D had initial post-switchover names COM4, 5 and 6; now they are SDN, ArqA and ArqB. At switchover BBCA, ArqA and ArqB will switch from 16QAM to 64QAM mode transmission, so five multiplexes will transmit in the 64QAM (2/3) 8k mode. BBCB is used for Freeview HD (DVB-T2, 256QAM), and has a pre-switchover service on selected main transmitters.

After switchover an existing group A aerial will provide all digital TV services.

The aerial must be mounted horizontally, with the elements in the left-right position

See full list of analogue transmitters for a complete list of shutdown dates.

Self-help relays

Self-help relays are transmitters that are not owned by the broadcasting and transmission companies, but by the local users. An active deflector (AD) re-transmits the analogue broadcasts on the same frequencies as the original broadcasts, while a transposer (T) transmits the received broadcasts on different frequencies.

Relay name	Type	Location	Notes
BICKLEIGH	T	15 km N Exeter	25 homes
FRESHWATER C/P	AD	2 km SE Bridport, Dorset	250 homes (caravans)
LADRAM BAY	T	15 km SE Exeter	400 homes (caravans)

itv1 - Stockland Hill transmitter area*

Date	Incumbent ITV company
29th Apr 1961 to 31st Dec 1981	Westward Television
1st Jan 1982 to 31st Dec 1992	Television South West (TSW)
1st Feb 1983 to 31st Dec 1992	TV-am (breakfast)
1st Jan 1993 to date	Westcountry Television
1st Jan 1993 to date	GMTV (breakfast)
Note	For digital switchover this region is now known as Westcountry.

* This Stockland Hill ITV transmitter came into service on VHF 405-line on 29th Apr 1961; dates before this indicate the history of the ITV company it belonged to when Stockland Hill began transmission.

405-line VHF black and white TV

From the Stockland Hill transmitter, ITV was broadcast on VHF C9. In the United Kingdom, 405-line television was used from 1936-39 and 1946 until 1982-85.

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