London Region Transmitters

This page provides detailed coverage information for professional aerial installers and related trade services.

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Crystal Palace
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	COM7 HD	COM8 HD	L-LON
		N	N	N	N	N	N	N	N	N
New baseline	02 Oct 2013	23	26	30-	25	22	28-
Multiplex launch	01 Nov 2013	23	26	30-	25	22	28-	33
Multiplex launch. Retune may provide additional services.	10 Feb 2014	23	26	30-	25	22	28-	33	29-
Multiplex launch	21 Apr 2015	23	26	30-	25	22	28-	33	35	29-
COM channel change and mode change	21 Mar 2018	23	26	30-	25	22	28-	55	56	35
COM power-up	18 Apr 2018	23	26	30-	25	22	28-	55	56	35
COM mux FEC change	10 Feb 2020	23	26	30-	25	22	28-	55	56	35
Multiplex closes	30 Jun 2020	23	26	30-	25	22	28-	55		35

Crystal Palace has 55 relay transmitters

Relay transmitters

Guildford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-GFD
		N	N	N	N	N	N	N
New baseline	02 Oct 2013	43	46	40	48	52	49
Multiplex launch. Retune may provide additional services.	18 Jul 2017	43	46	40	48	52	49	51

Hertford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB channel change	24 Jul 2019	39	42	45

Reigate
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B
		N	N	N	N	N	N
New baseline	02 Oct 2013	60-	57	53	21+	24	27

Hemel Hempstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B
		N	N	N	N	N	N
New baseline	02 Oct 2013	44	41	47	50	59	55

Woolwich
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60-	57	53
PSB channel change	21 Mar 2018	41	44	47

High Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	37	31	50
PSB channel change	18 Apr 2018	37	31	32

Wooburn
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	48	56	52
PSB channel change	21 Mar 2018	48	36	52
PSB channel change	18 Apr 2018	41	44	47

Henley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB channel change	18 Apr 2018	41	44	47

Bishops Stortford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Chesham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Welwyn
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46
PSB channel change	18 Apr 2018	41	44	47

Great Missenden
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB power-up	07 Feb 2018	49	58	54
PSB channel change	21 Mar 2018	33	36	48

Mickleham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB channel change	21 Mar 2018	39	42	45

Kenley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Chepping Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	18 Apr 2018	40	43	46

Hughenden
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46
PSB channel change	21 Mar 2018	33	36	48

Forest Row
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	56	58	40
PSB channel change	21 Mar 2018	33	36	40
PSB channel change	19 Jul 2018	33	36	48

Chingford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	21 Mar 2018	41	44	47

Hemel Hempstead Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	18 Apr 2018	41	44	47

Walthamstow North
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	45	42
PSB channel change	21 Mar 2018	39	45	42

Marlow Bottom
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB mux channel change and power increase	18 Apr 2018	33	36	48

Cane Hill Chapel
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB mux channel change and power increase	21 Nov 2018	39	42	45

New Addington
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

West Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Otford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB mux channel change and power increase	21 Mar 2018	29	31	37

Lea Bridge
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	50	55	59
PSB channel change	21 Mar 2018	40	43	46

Micklefield
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	57	60	53
PSB mux channel change and power increase	18 Apr 2018	33	36	48

Alexandra Palace
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB channel change	24 Jul 2019	31	32	37

Dorking HP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47

Caterham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

East Grinstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	55	50
PSB channel change	21 Mar 2018	29	31	37

Biggin Hill
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	39	45	42

Croydon Old Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	56	48
PSB channel change	21 Mar 2018	39	42	45

Skirmett
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	21 Mar 2018	33	36	48

St Albans
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	57	53	60
PSB channel change	18 Apr 2018	41	44	47

Gravesend
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	53
PSB channel change	21 Mar 2018	31	32	37

Wonersh
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	18 Apr 2018	40	43	46

New Barnet
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	41	44	47

Edmonton
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	21 Mar 2018	41	44	47

Finchley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	48	52	56
PSB channel change	21 Mar 2018	39	42	45

Old Coulsdon
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB mux channel change and power increase	21 Mar 2018	44	41	47

Kensal Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	56	48
PSB channel change	21 Mar 2018	39	42	45

Hammersmith
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	59	54	50
PSB mux channel change and power increase	30 Aug 2018	29	31	37

Hampstead Heath
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	47	44	41

Assendon
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Worlds End
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	46	43	40
PSB channel change	21 Mar 2018	41	44	47

Orpington
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Greenwich
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	21 Mar 2018	40	43	46

Poplar
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	39	45	42

Dorking VP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47

Farningham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	48	56
PSB channel change	21 Mar 2018	39	42	45

Sutton HP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB mux channel change and power increase	21 Mar 2018	33	36	48

Sutton VP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB mux channel change and power increase	21 Mar 2018	33	36	48

Biggin Hill Link
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37
PSB channel change	04 Dec 2018	29	31	37

Guildford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-GFD
		N	N	N	N	N	N	N
COM channel change	14 Mar 2018	43	46	40	37	52	49
PSB channel change	18 Apr 2018	41	44	47	37	31	32	33

Guildford has 1 relay transmitters

Reigate
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-LON
		N	N	N	N	N	N	N
PSB channel change	21 Mar 2018	23	26	30-	21+	24	27
Multiplex launch. Retune may provide additional services.	02 Oct 2019	23	26	30-	21+	24	27	35

Reigate has 1 relay transmitters

Hemel Hempstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-LON
		N	N	N	N	N	N	N
COM channel change	21 Mar 2018	44	41	47	50	59	29
PSB channel change	18 Apr 2018	40	43	46	37	31	29
Multiplex launch. Retune may provide additional services.	27 Mar 2019	40	43	46	37	31	29	34

Hemel Hempstead has 1 relay transmitters

Crystal Palace
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	COM7 HD	COM8 HD	L-LON
		N	N	N	N	N	N	N	N	N
New baseline	02 Oct 2013	23	26	30-	25	22	28-
Multiplex launch	01 Nov 2013	23	26	30-	25	22	28-	33
Multiplex launch. Retune may provide additional services.	10 Feb 2014	23	26	30-	25	22	28-	33	29-
Multiplex launch	21 Apr 2015	23	26	30-	25	22	28-	33	35	29-
COM channel change and mode change	21 Mar 2018	23	26	30-	25	22	28-	55	56	35
COM power-up	18 Apr 2018	23	26	30-	25	22	28-	55	56	35
COM mux FEC change	10 Feb 2020	23	26	30-	25	22	28-	55	56	35
Multiplex closes	30 Jun 2020	23	26	30-	25	22	28-	55		35

Crystal Palace has 55 relay transmitters

Relay transmitters

Guildford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-GFD
		N	N	N	N	N	N	N
New baseline	02 Oct 2013	43	46	40	48	52	49
Multiplex launch. Retune may provide additional services.	18 Jul 2017	43	46	40	48	52	49	51

Hertford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB channel change	24 Jul 2019	39	42	45

Reigate
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B
		N	N	N	N	N	N
New baseline	02 Oct 2013	60-	57	53	21+	24	27

Hemel Hempstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B
		N	N	N	N	N	N
New baseline	02 Oct 2013	44	41	47	50	59	55

Woolwich
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60-	57	53
PSB channel change	21 Mar 2018	41	44	47

High Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	37	31	50
PSB channel change	18 Apr 2018	37	31	32

Wooburn
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	48	56	52
PSB channel change	21 Mar 2018	48	36	52
PSB channel change	18 Apr 2018	41	44	47

Henley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB channel change	18 Apr 2018	41	44	47

Bishops Stortford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Chesham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Welwyn
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46
PSB channel change	18 Apr 2018	41	44	47

Great Missenden
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB power-up	07 Feb 2018	49	58	54
PSB channel change	21 Mar 2018	33	36	48

Mickleham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB channel change	21 Mar 2018	39	42	45

Kenley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Chepping Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	18 Apr 2018	40	43	46

Hughenden
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46
PSB channel change	21 Mar 2018	33	36	48

Forest Row
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	56	58	40
PSB channel change	21 Mar 2018	33	36	40
PSB channel change	19 Jul 2018	33	36	48

Chingford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	21 Mar 2018	41	44	47

Hemel Hempstead Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	18 Apr 2018	41	44	47

Walthamstow North
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	45	42
PSB channel change	21 Mar 2018	39	45	42

Marlow Bottom
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB mux channel change and power increase	18 Apr 2018	33	36	48

Cane Hill Chapel
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	58	49	54
PSB mux channel change and power increase	21 Nov 2018	39	42	45

New Addington
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

West Wycombe
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	40	46

Otford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB mux channel change and power increase	21 Mar 2018	29	31	37

Lea Bridge
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	50	55	59
PSB channel change	21 Mar 2018	40	43	46

Micklefield
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	57	60	53
PSB mux channel change and power increase	18 Apr 2018	33	36	48

Alexandra Palace
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	49	58	54
PSB channel change	24 Jul 2019	31	32	37

Dorking HP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47

Caterham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

East Grinstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	43	55	50
PSB channel change	21 Mar 2018	29	31	37

Biggin Hill
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	39	45	42

Croydon Old Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	56	48
PSB channel change	21 Mar 2018	39	42	45

Skirmett
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	21 Mar 2018	33	36	48

St Albans
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	57	53	60
PSB channel change	18 Apr 2018	41	44	47

Gravesend
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	53
PSB channel change	21 Mar 2018	31	32	37

Wonersh
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	18 Apr 2018	40	43	46

New Barnet
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	41	44	47

Edmonton
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	60	57	53
PSB channel change	21 Mar 2018	41	44	47

Finchley
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	48	52	56
PSB channel change	21 Mar 2018	39	42	45

Old Coulsdon
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB mux channel change and power increase	21 Mar 2018	44	41	47

Kensal Town
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	56	48
PSB channel change	21 Mar 2018	39	42	45

Hammersmith
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	59	54	50
PSB mux channel change and power increase	30 Aug 2018	29	31	37

Hampstead Heath
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	47	44	41

Assendon
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Worlds End
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	46	43	40
PSB channel change	21 Mar 2018	41	44	47

Orpington
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37

Greenwich
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47
PSB channel change	21 Mar 2018	40	43	46

Poplar
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	39	45	42

Dorking VP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	44	41	47

Farningham
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	52	48	56
PSB channel change	21 Mar 2018	39	42	45

Sutton HP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB mux channel change and power increase	21 Mar 2018	33	36	48

Sutton VP
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB mux channel change and power increase	21 Mar 2018	33	36	48

Biggin Hill Link
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD
		N	N	N
New baseline	02 Oct 2013	59	55	50
PSB channel change	21 Mar 2018	29	31	37
PSB channel change	04 Dec 2018	29	31	37

Guildford
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-GFD
		N	N	N	N	N	N	N
COM channel change	14 Mar 2018	43	46	40	37	52	49
PSB channel change	18 Apr 2018	41	44	47	37	31	32	33

Guildford has 1 relay transmitters

Reigate
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-LON
		N	N	N	N	N	N	N
PSB channel change	21 Mar 2018	23	26	30-	21+	24	27
Multiplex launch. Retune may provide additional services.	02 Oct 2019	23	26	30-	21+	24	27	35

Reigate has 1 relay transmitters

Hemel Hempstead
Step A change or event in the switchover programme	Date	BBC A	D3&4	BBC B HD	SDN	ARQ A	ARQ B	L-LON
		N	N	N	N	N	N	N
COM channel change	21 Mar 2018	44	41	47	50	59	29
PSB channel change	18 Apr 2018	40	43	46	37	31	29
Multiplex launch. Retune may provide additional services.	27 Mar 2019	40	43	46	37	31	29	34

Hemel Hempstead has 1 relay transmitters

London Region Transmitters

Relay transmitters

Relay transmitters

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