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Full Freeview on the Sandy Heath (Central Bedfordshire, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps52.130,-0.242 or 52°7'47"N 0°14'33"Wsa_postcodeSG19 2NH

 

The symbol shows the location of the Sandy Heath (Central Bedfordshire, England) transmitter which serves 920,000 homes. 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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Sandy Heath (Central Bedfordshire, England) transmitter.

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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Which Freeview channels does the Sandy Heath transmitter broadcast?

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 H max
C27 (522.0MHz)291mDTG-3180,000W
Channel icons
1 BBC One (SD) Cambridge, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, 250 BBC Red Button, plus 15 others

PSB2
D3+4
 H max
C24 (498.0MHz)291mDTG-3180,000W
Channel icons
3 ITV (SD) (Anglia (West micro region)), 4 Channel 4 (SD) South ads, 5 Channel 5, 6 ITV 2, 10 ITV3, 13 E4, 14 Film4, 15 Channel 4 +1 South ads, 18 More4, 25 ITV4, 30 E4 +1, 35 ITV +1 (Anglia east),

PSB3
BBCB
 H max
C21+ (474.2MHz)291mDTG-6180,000W
Channel icons
73 Shopping Quarter , 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 204 CBBC HD, plus 1 others

COM4
SDN
 H -0.2dB
C33 (570.0MHz)291mDTG-8170,000W
Channel icons
 CCXTV, 12 Quest, 20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 42 GREAT! movies action, 45 Channel 5 +1, 56 5SELECT, 58 ITVBe +1, 59 ITV3 +1, 60 ITV4 +1, 64 Blaze, 67 CBS Reality, 68 Horror Channel, 74 Drama +1, 78 TCC, 81 Blaze +1, 203 CITV, 211 Ketchup TV, 212 YAAAS!, plus 16 others

COM5
ArqA
 H -0.2dB
C36 (594.0MHz)289mDTG-8170,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 4Music, 36 pick, 40 Quest Red, 43 Food Network, 46 Film4 +1, 47 Challenge, 48 4seven, 57 Smithsonian Channel, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H -0.2dB
C48 (690.0MHz)289mDTG-8170,000W
Channel icons
25 Dave ja vu, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 41 CBS Justice, 44 HGTV, 68 CBS Drama, 82 Talking Pictures TV, 84 PBS America, 234 RT, 235 Aljazeera English, plus 17 others

com7
 H -5.6dB
C55 (746.0MHz)291mDTG-649,600W
Channel icons
 Together TV +1,  Merit,  Court TV, 65 FreeSports, 71 Quest Red +1, 76 Now 70s, 86 More4 +1, 87 PBS America +1, 91 That's TV , 96 Forces TV, 106 BBC Four HD, 107 BBC News HD, 113 RT HD, 114 Quest HD, 205 CBeebies HD, plus 2 others

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

Which BBC and ITV regional news can I watch from the Sandy Heath transmitter?

regional news image
BBC Look East (West) 1.0m homes 3.7%
from Cambridge CB4 0WZ, 29km east-northeast (66°)
to BBC Cambridge region - 4 masts.
70% of BBC East (East) and BBC East (West) is shared output
regional news image
ITV Anglia News 1.0m homes 3.7%
from Norwich NR1 3JG, 119km east-northeast (60°)
to ITV Anglia (West) region - 5 masts.
All of lunch, weekend and 80% evening news is shared with Anglia (East)

How will the Sandy Heath (Central Bedfordshire, England) transmission frequencies change over time?

1965-80s1984-971997-981998-20112011-1312 Feb 2020
VHFA K TK TK TW TW T
C6ITVwaves
C21C4wavesC4wavesC4waves+BBCBBBCB
C24ITVwavesITVwavesITVwavesD3+4D3+4
C27BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C31BBC1wavesBBC1wavesBBC1waves
C32com7
C33SDN
C34com8
C35_local
C36ArqA
C39C5wavesC5waves
C43_local
C48ArqBArqB
C51tv_offSDN
C52tv_offArqA
C55tv_offcom7tv_off
C56tv_offCOM8tv_off

tv_off Being removed from Freeview (for 5G use) after November 2020 - more
Table shows multiplexes names see this article;
green background for transmission frequencies
Notes: + and - denote 166kHz offset; aerial group are shown as A B C/D E K W T
waves denotes analogue; digital switchover was 30 Mar 11 and 13 Apr 11.

How do the old analogue and currrent digital signal levels compare?

Analogue 1-4 1000kW
BBCA, D3+4, BBCB(-7.4dB) 180kW
SDN, ARQA, ARQB(-7.7dB) 170kW
com7(-13dB) 49.6kW
com8(-13.1dB) 49.1kW
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*(-17dB) 20kW
Analogue 5(-20dB) 10kW

Which companies have run the Channel 3 services in the Sandy Heath transmitter area

Oct 1959-Feb 2004Anglia Television
Feb 2004-Dec 2014ITV plc
Feb 1983-Dec 1992TV-am•
Jan 1993-Sep 2010GMTV•
Sep 2010-Dec 2014ITV Daybreak•
• Breakfast ◊ Weekends ♦ Friday night and weekends † Weekdays only.

Comments
Wednesday, 22 December 2021
P
paul j
8:58 PM

paul j :

there don't seem to be any troposphere problems https://www.dxinfocentre.com/tropo_eur.html
explaining poor reception

Have reverted to using ITV hub and other internet based 'apps'

(ukfree.tv comment section itself seem to generate errors from multiple browesers - hence my earlier duplicate postings)






link to this comment
paul j's 5 posts GB
P
paul j
9:29 PM

paul j:

A suggestion high pressure is to blame V
https://www.freeview.co.uk/help/service-updates/high-pressure-could-affect-reception-southern-parts-england

link to this comment
paul j's 5 posts GB
Thursday, 23 December 2021
C
Chris.SE
sentiment_very_satisfiedPlatinum

3:41 AM

paul j:
Alan Browning 5 yuba:
Hazel Rogers:
Rita Norman:

On the contrary paul, there has been moderate Temperature Inversion/Tropospheric Ducting affecting large parts of the UK for several days, it sometimes accompanies high pressure.
Do NOT retune, it will more likely remove your correct tuning.

These conditions are predicted to ease late on Wednesday by the end of the night
Despite the incorrect spelling, this link does work - simple technical explanation
https://www.bbc.co.uk/reception/sites/default/files/inline-images/tropispheric%20ducting1_0.jpg

Essentially it results in interfering signals from other transmitters in the UK or Europe reaching you and so your wanted signals are disrupted. It won't necessarily affect all multiplexes or necessarily at the same time if more than one. It can last for seconds, minutes, sometimes hours or longer.

The BBC have had a warning on their Works and Warnings page for a few days, and Freeview had added one on Wednesday (better late than never!) but at the time it was then mainly affecting the S & SE.

link to this comment
Chris.SE's 2,900 posts GB
P
paul j
11:12 AM

Chris.SE:

OK is there a better web-site than the one I linked , which will show ducting forecast ?

link to this comment
paul j's 5 posts GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

9:55 PM

paul j:

Hi paul. Do remember they are all general propagation predictions and it doesn't mean that one WILL be affected, sometimes just bands II & III may be affected and not IV & V, sometimes the other way around, sometime all or none!

dxinfocentre is one of the ones I refer to, also http://tropo.f5len.org/forecasts-for-europe/
It's worth keeping an eye on https://www.bbc.co.uk/reception/problems-freeview-reception/#/Freeview as the BBC sometimes put a Works and Warnings note up (there's been one but it will usually disappear when conditions change).
I do look at https://www.freeview.co.uk/help/updates-alerts for other things but they're often unreliable for this sort of thing (always after the event, so to speak, as with some other things they put there!).

link to this comment
Chris.SE's 2,900 posts GB
Friday, 31 December 2021
G
Gary
9:41 PM
St. Neots

Experiencing intermittent pixelation on channels this evening. Not as as bad as the problem we had on the 23rd December.


PE19 5UE

link to this comment
Gary's 1 post GB
C
Chris.SE
sentiment_very_satisfiedPlatinum

10:34 PM

Gary:

It's Temperature Inversion/Tropospheric Ducting again I'm afraid. See my previous posts before yours if you want more detail. It's unlikely to clear completely until some time tomorrow and then it could still be a bit intermittent for a few days.

link to this comment
Chris.SE's 2,900 posts GB
Monday, 17 January 2022
K
Kim Rahbek
1:37 PM

Do you ,know when the planned engineering work on or near the transmitter Sandy Heath,Milton Keynes is complete? Channels keep coming and going for us, and have done for weeks! Thank you.

link to this comment
Kim Rahbek's 1 post US
C
Chris.SE
sentiment_very_satisfiedPlatinum

1:52 PM

Kim Rahbek:

It's likely to a combination of factors. Unfortunately weather conditions again - see the post before yours, applicable again and it's reference to an earlier post if you'd like more detail of this type of problem.
Sandy Heath has also been listed for Planned Engineering this week, so some of that may disrupt reception.

link to this comment
Chris.SE's 2,900 posts GB
Wednesday, 19 January 2022
K
Kim Rahbek
1:33 PM

Do you ,know when the planned engineering work on or near the transmitter Sandy Heath,Milton Keynes is complete? Channels keep coming and going for us, and have done for weeks! Thank you.

link to this comment
Kim Rahbek's 1 post US
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