Freeview transmissions on Crystal Palace

Mux	Effective power level	Rating	Mode	Watts
1		Maximum	16QAM-2k 18Mb/s MPEG2	20,000
	1 BBC One (London), 2 BBC Two (England), 7 BBC Three, 70 CBBC Channel, 80 BBC News, 105 BBC Interactive text, on C25- (505.8MHz)
2		Low	64QAM-2k 24Mb/s MPEG2	20,000
	3 ITV1 (Carlton/LWT), 4 Channel 4, 5 FIVE, 6 ITV2, 13 Channel 4+1, 14 More4, 28 E4, 33 ITV2+1, 100 Teletext, 101 Teletext Holidays, 104 Teletext on 4, 728 Heart, on C22- (481.8MHz)
A		Low	64QAM-2k 24Mb/s MPEG2	20,000
	10 ITV3, 16 QVC, 20 Virgin 1, 23 Bid TV, 30 FIVER, 31 FIVE USA, 38 Quest, 39 TOPUP Stream 2, 40 TOPUP Stream 3, 72 CITV, 84 CNN International, 103 Teletext Casino, 712 Smash Hits! Radio, on C32- (561.8MHz)
B		Maximum	16QAM-2k 18Mb/s MPEG2	20,000
	0 Community, 9 BBC Four, 71 CBeebies, 81 BBC Parliament, 105 BBC Interactive text, 301 BBCi 301, 302 BBCi 302, 303 BBC Sport Interactive, 700 BBC Radio 1, 701 1Xtra BBC, 702 BBC Radio 2, 703 BBC Radio 3, 704 BBC Radio 4, 705 BBC Radio 5 Live, 706 BBC Radio 5 Live Sports Extra, 707 BBC Radio 6 Music, 708 BBC Radio 7, 709 BBC Asian Network, 710 BBC World Service, on C28- (529.8MHz)
C		Maximum	16QAM-2k 18Mb/s MPEG2	20,000
	11 Sky3, 19 Dave, 29 E4+1, 37 price-drop tv, 82 Sky News, 83 Sky Sports News, 108 Sky Text, 108 NHS Direct, 723 talkSPORT, 725 Premier Christian Radio, 727 Absolute Radio, on C34+ (578.2MHz)
D		Maximum	16QAM-2k 18Mb/s MPEG2	20,000
	12 Yesterday, 15 Film4, 18 4Music, 21 VIVA, 22 Ideal World, 24 ITV4, 25 Dave ja vu, 35 Virgin 1+1, 41 TOPUP Anytime4, 43 Gems TV, 45 Lottery Xtra, 85 Russia Today, 711 The Hits radio, 713 Kiss radio, 714 Heat Radio, 715 Magic radio, 716 Q radio, 718 Smooth radio, 722 Kerrang! radio, 36 Create and Craft, on C29- (537.8MHz)
PSB3 BBCB		Below average	DVB-T2 HD 40Mb/s MPEG4	10,000
	50 BBC HD, 51 ITV1 HD, 52 Channel 4 HD, on C31 (554.0MHz)

To receive Freeview from the Crystal Palace transmitter you will require an aerial of group A positioned horizontally. This transmitter is 302 metres above sea-level, and transmits at 20,000 watts.

Full list of Freeview transmitters.

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
CHARLTON ATHLETIC	T	Redeveloped north stand Charlton Athletic Football Club	130 homes
DEPTFORD	T	south-east London	100 homes
GREENFORD	T	12 km N Heathrow Airport	203 homes
HENDON	T	Graham Park estate	50 homes
WHITE CITY	T	9 km W central London	80 homes

Transmission frequencies

Before Sunday 15th November 1998

C23	C26	C30	C33
ITV1	BBC One	C4	BBC TWO

Sunday 15th November 1998 to Sunday 1st April 2012

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

After Monday 30th April 2012

C22	C23	C25	C26	C28	C29	C30	C42*
Mux SDN	Mux BBCA	Mux ArqA	Mux D3+4	Mux ArqB	Mux NEW7	Mux BBCB	Mux NEW8

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 1,000,000 Watts, post switchover average digital multiplex output will be 150,000 Watts.

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

The first designation for the post-switchover multiplexes was: multiplexes 1 and 2 were prefixed "PSB" (for Public Service Broadcasting) and multiplex B becomes "PSB3". The commercial multiplexes A, C and D became "COM4", "COM5" and "COM6". As switchover the PSB1, PSB3, COM5 and COM6 will switch to 64QAM mode transmission, so all multiplexes will transmit in the 64QAM (2/3) 8k mode.

However, Ofcom now calls the PSB multiplexes BBCA, D3+4 and BBCB, the commercial ones are SDN, ArqA and ArqB. In addition the BBCB multiplex will now, from December 2009, be used for the 256QAM DVB-T2 high definition service. This multiplex MAY also be provided from some transmitters before switchover.

After switchover, you will have needed to upgrade to a Wideband aerial to receive some or all digital television services.

itv1 - Crystal Palace transmitter area*

Date	Incumbent ITV company
22nd Sep 1955 to July 1968	Associated-Rediffusion (weekdays only)
24th Sep 1955 to July 1968	Associated TeleVision (weekends)
July 1968 to 31st Dec 1992	Thames (weekdays only)
July 1968 to date	London Weekend Television (Friday night and weekends)
1st Feb 1983 to 31st Dec 1992	TV-am (breakfast)
1st Jan 1993 to date	Carlton (weekdays only)
1st Jan 1993 to date	GMTV (breakfast)
Note	For digital switchover this region is now known as Carlton/LWT.

* The Crystal Palace transmitter was not an original ITV VHF 405-line transmitter: the historical information shown above includes the details of the company reponsible for the Crystal Palace transmitter when it began transmission.

405-line VHF black and white TV

From the Crystal Palace transmitter, BBC One was broadcast on VHF C1. In the United Kingdom, 405-line television was used from 1936-39 and 1946 until 1982-85.

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