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Freeview on the Guildford (Surrey, England) transmitter

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51.228,-0.605 or 51°13'42"N 0°36'18"W

GU2 7RW

Transmitter fauls and engineering works

GUILDFORD transmitter - DAB: BBC National DAB Radio Weak Signal from 04:39 on 14 May to 05:18 on 15 May. FM: Radio 1 FM Off Air from 04:57 on 14 May to 05:18 on 15 May, Radio 2 FM Off Air from 04:57 on 14 May to 05:18 on 15 May, Radio 3 FM Off Air from 04:57 on 14 May to 05:18 o

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The symbol shows the location of the Guildford transmitter which serves 48,000 homes.

Other maps:

Guildford DAB

Guildford AM/FM

Crystal Palace region

BBC London

London

Radiation patterns

Radiation patterns withheld

Map key

The bright green areas shown where the signal from this transmitter is strong, dark green areas are poorer signals. Those parts shown in yellow may have interference on the same frequency from other masts.

Guildford transmitter Freeview broadcasts

If you have any kind of Freeview fault, follow this Freeview reset procedure first.

Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below. The rating shown takes in account the output power level and the various Freeview transmission modes and do not indicate an ongoing fault.

Mux	Effective power level, aerial position	Rating	Mode	Watts
PSB1 BBCA	vertical	Maximum	64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2	2,000
	1 BBC One London, 2 BBC Two England, 7 BBC Three, 9 BBC Four, 70 CBBC Channel, 71 CBeebies, 80 BBC News, 81 BBC Parliament, 301 301, plus 12 others • as a digital multiplex transmitted on frequency C43 (650.0MHz) from 192m datum.
PSB2 D3+4	vertical	Maximum	64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2	2,000
	3 ITV (London), 4 Channel 4 London ads, 5 Channel 5 London ads, 6 ITV 2, 13 Channel 4+1 London ads, 14 More 4, 28 E4, 33 ITV +1 (London), • as a digital multiplex transmitted on frequency C46 (674.0MHz) from 192m datum.
PSB3 BBCB	vertical	Maximum	256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4	2,000
	101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV London), 104 Channel 4 HD London ads, plus 1 others 232 The Space, • as a digital multiplex transmitted on frequency C40 (626.0MHz) from 192m datum.
COM4 SDN	vertical	Maximum	64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2	2,000
	10 ITV 3, 20 G.O.L.D. (not free), 25 Dave ja vu, 26 Home (not free), 27 ITV 2 +1, 30 5, 31 5USA, 34 ESPN UK (not free*), 38 Quest, 39 The Zone, 44 Channel 5 +1, 72 CITV, plus 22 others • as a digital multiplex transmitted on frequency C48 (690.0MHz) from 192m datum.
COM5 ArqA	vertical	Maximum	64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2	2,000
	TV News, TV Stars, 11 PICK TV, 12 Dave, 17 Really, 29 E4+1, 32 Movie Mix, 46 Challenge, 48 Food Network, 82 Sky News, 87 Community Channel, plus 9 others • as a digital multiplex transmitted on frequency C52 (722.0MHz) from 191m datum.
COM6 ArqB	vertical	Maximum	64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2	2,000
	15 Film 4, 18 4Music, 19 Yesterday, 21 VIVA, 24 ITV 4, 41 Sky Sports 1 (not free), 42 Sky Sports 2 (not free), 47 4seven, 83 Al Jazeera English, 85 RT English , plus 21 others • as a digital multiplex transmitted on frequency C49 (698.0MHz) from 191m datum.

Regional news from the Guildford transmitter

BBC London 4.9m homes 18.4%
from London W1A 1AA, 45km northeast
to BBC London region - 55 masts.

ITV London News 4.9m homes 18.4%
from London WC1X 8XZ, 47km northeast
to ITV London region - 55 masts.

How the transmission frequencies change over time

	years	1984-97	1997-98	1998-2012	2012-13	2013-18	2013-18
	aerial group	B E	B E	E	B E	B E	B E
	C40	BBC1	BBC1	BBC1	BBCB	BBCB	BBCB
	C41			+A
	C43	ITV	ITV	ITV	BBCA	BBCA	BBCA
	C44			+2
	C46	BBC2	BBC2	BBC2	D3+4	D3+4	D3+4
	C47			+C
	C48				SDN	SDN	SDN
700	C49			-1	ArqB	ArqB	ArqB
	C50	C4	C4	C4
	C51			+B			local
	C52				ArqA	ArqA	ArqA
	C54			D

orange background for multiplexes names more

green background for transmission frequencies

lilac background for power levels in watts

800MHz band: 4G mobile to start in 2013

700MHz band: possible 4G in 2019 more

600MHz band: new or moved digital TV services more

Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W
Italics for analogue, digital switchover was Wednesdays 4th April and 18th April 2012.

Ofcom have projected that a local television service for Guildford including Parts of Woking could use an Interleaved Frequency on the Guildford transmitter using C51

Comparison of old analogue and current digital signal levels

Analogue 1-4	10kW
SDN, ARQA, ARQB, BBCA, D3+4, BBCB	(-7dB) 2kW
Mux 2, Mux A, Mux B*	(-17dB) 200W
Mux 1, Mux C, Mux D*	(-20dB) 100W

History of Channel 3 in the Crystal Palace transmitter area

Sep 1955-Jul 1968	Associated-Rediffusion†
Sep 1955-Jul 1968	Associated TeleVision◊
Jul 1968-Dec 1992	Thames†
Jul 1968-Feb 2004	London Weekend Television♦
Jan 1993-Feb 2004	Carlton†
Feb 2004-Dec 2014	ITV plc♦
Feb 2004-Dec 2014	ITV plc†

• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only. Guildford was not an original Channel 3 VHF 405-line mast: the historical information shown is the details of the company responsible for the transmitter when it began transmitting Channel 3.

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Transmitter engineering
Saturday 30 July 2011 4:38AM

GUILDFORD transmitter - Analogue BBC ONE Weak Signal from 14:08 on 27 Jul to 15:05 on 27 Jul BBC TWO Weak Signal from 01:13 on 26 Jul to 10:40 on 26 Jul BBC TWO Weak Signal from 11:14 on 27 Jul to 11:51 on 27 Jul BBC TWO Weak Signal from 15:50 on 26 Jul to 16:40 on 26 Jul BBC TWO Weak Si [BBC] Over the next week Guildford relay: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) Possible weak signal, Radio (digital) Possible weak signal. [DUK]

Apologies for UK Free down this morning	1
15th May 2013 retunes for Yorkshire coast and Dorset, Wiltshire, Isle Of Wight	2
Want to see where a point on a line of sight on a map? Click on UK Free TV!	3
Want to better understand the current TV faults? See the all new UK Free TV page	4
Want EVEN better ADVANCED aerial to Freeview transmitter terrain plots?	5
Want better aerial to Freeview transmitter terrain plots? Check out UK Free TV!	6
Brighton to be the fourth at800 test area from mid-May 2013	7
Want to compare channels on all free TV services easily?	8
New channel coming to Freeview - Drama from 8 July	9

jb38 tim: If you have zero quality then its most unlikely th	1
Dave Lindsay lesley aspin: No the signal is the same at all	2
lesley aspin We have freeview with a harddrive recorder. We	3
jb38 Ian: Many thanks, although that now adds to my suspicio	4
George My tv aerial is on roof .tv channels are lost all the	5
jb38 Duncan: Interference of the nature you describe is near	6
Ian Yes, I pressed AV1 rather than HDMI1	7
tim BTW, signal strength is about 25% on the affected channe	8
tim we live in east harling (tacolneston transmitter) and us	9
tim we live in east harling (tacolneston transmitter) and us	10

Freeview reception predicton	1
All free-to-watch channels	2
What can I do when my Sky Digibox says 'No Signal' or 'Technical fault'?	3
Feedback \| Feedback	4
Can I stop paying Sky and use my satellite receiver to get Freeview ?	5
My Freeview box has no EPG, is blank on FIVE, ITV3, ITV4, ITV2+1, has no sound or the channel line up is wrong	6
Freeview reception - all about aerials \| Installing	7
Tunbridge Wells (Kent, England) Full-Freeview transmitter	8
My Sky box has a "no signal message" - what do I do?	9