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Full Freeview on the Bluebell Hill (Medway, England) transmitter

first published this on - UK Free TV
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The symbol shows the location of the Bluebell Hill (Medway, England) transmitter which serves 200,000 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 Bluebell Hill (Medway, 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 Bluebell Hill 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
C32 (562.0MHz)242mDTG-20,000W
Channel icons
1 BBC One (SD) South East, 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
C34 (578.0MHz)242mDTG-20,000W
Channel icons
3 ITV 1 (SD) (Meridian (East 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, 26 ITV4, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

PSB3
BBCB
 H max
C45+ (666.2MHz)242mDTG-20,000W
Channel icons
56 5SELECT, 101 BBC One HD (England no regional news), 102 BBC Two HD (England), 103 ITV 1 HD (ITV Meridian Southampton), 104 Channel 4 HD South ads, 105 Channel 5 HD, 106 BBC Four HD, 109 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

COM4
SDN
 H max
C40 (626.0MHz)242mDTG-820,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 41 Legend, 42 GREAT! movies action, 46 Channel 5 +1, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 74 Dave ja vu, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 203 CITV, 208 POP MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 14 others

COM5
ArqA
 H max
C43+ (650.2MHz)245mDTG-820,000W
Channel icons
11 Sky Arts, 17 Really, 19 Dave, 31 E4 Extra, 36 pick, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 57 Smithsonian Channel, 60 Drama +1, 70 Quest +1, 75 Yesterday +1, 83 Together TV, 233 Sky News, plus 9 others

COM6
ArqB
 H max
C46 (674.0MHz)245mDTG-820,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 71 Quest Red +1, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 88 Classic Hits, 235 Al Jazeera Eng, plus 19 others

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 Bluebell Hill transmitter?

regional news image
BBC South East Today 0.8m homes 3.2%
from Tunbridge Wells TN1 1QQ, 28km southwest (219°)
to BBC South East region - 45 masts.
regional news image
ITV Meridian News 0.7m homes 2.7%
from Maidstone ME14 5NZ, 5km south-southeast (156°)
to ITV Meridian (East) region - 36 masts.
All of lunch, weekend and 50% evening news is shared with all of Meridian plus Oxford

How will the Bluebell Hill (Medway, England) transmission frequencies change over time?

1984-971997-981998-20122012-1319 Jul 2018
EEEW TW T
C21_local
C28_local
C32com7
C34com8
C39+ArqA
C40BBC1wavesBBC1wavesBBC1waves+BBCBSDN
C43ITVwavesITVwavesITVwavesD3+4ArqA
C45SDNBBCB
C46BBC2wavesBBC2wavesBBC2wavesBBCAArqB
C54tv_offArqB
C55tv_offcom7tv_off
C56tv_offCOM8tv_off
C65C4wavesC4wavesC4waves

tv_off Being removed from Freeview (for 5G use) after November 2020 / June 2022 - 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 13 Jun 12 and 27 Jun 12.

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

Analogue 1-4 30kW
SDN, ARQA, ARQB, BBCA, D3+4, BBCB(-1.8dB) 20kW
com8(-7.8dB) 5kW
com7(-8.1dB) 4.7kW
Mux 1*, Mux B*, Mux C*, Mux D*(-10dB) 3kW
Mux 2*, Mux A*(-11.8dB) 2kW

Which companies have run the Channel 3 services in the Bluebell Hill transmitter area

Sep 1955-Jul 1968Associated-Rediffusion†
Sep 1955-Jul 1968Associated TeleVision◊
Jul 1968-Dec 1981Thames†
Jul 1968-Dec 1981London Weekend Television♦
Jan 1982-Dec 1992Television South (TVS)
Jan 1993-Feb 2004Meridian
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. Bluebell Hill 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.

Comments
Thursday, 14 June 2012
Dave Lindsay
sentiment_very_satisfiedPlatinum

1:33 PM

John Langley: C46 is now on full post-switchover power and the rest remain on their pre-switchover "low" power.

Based on the readings you have given, I am wondering if you live in a strong signal area, or at least your aerial is providing a very strong to excessive signal, the latter being a possibility for C46 now and for the rest when they go up on 27th. Without knowing your location, it isn't possible to get an idea of how likely that might be the problem.

What stands out to me is that for the high-power multiplex on C46 you only have a strength of 46, yet 24 and 39, which are still on low power, are in the 80s. With the low-power signals you have ample strength so I suspect that the low strength reading for C46 is because it is excessive and requires reducing.

42 and 45 are close to 46, so perhaps latter the high power signal is acting to desensitise your receiver when it is tuned to the formers.

This can be likened to walking down the street at night. When car headlights come towards you, your eyes become desensitised making it more difficult to see the relatively dark surroundings.

If you have a booster (and it is not used to split the signal to different rooms) remove it. Once you've done that, if the problem prevails, you may need attenuation to bring the level down even more.

You may find that as you reduce it, not only will the strength of C46 go up, but the quality of 42 and 45 will improve.

For a more in-depth explanation see ukfree.tv - independent free digital TV advice

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Dave Lindsay's 5,724 posts GB
J
John Langley
3:54 PM

Thanks Dave Lindsay - must say it all sounds v logical now you have explained it. We have a high gain digital aerial (used to be on my daughter's house in poor reception area until she moved). We do have a multipoint booster to distribute to a number of rooms into which the aerial connects.

So I assume you can buy attenuators from the likes of Maplins - any suggestions as to the likely value I should purchase or can you get variable ones?

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John Langley's 3 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

5:35 PM

John Langley: Due to the fact that the pre-switchover digital signals were weaker, some aerials have been replaced with higher gain ones. Plus the fact that with some transmitters, including Bluebell Hill, some pre-switchover digital channels were out of the native analogue group.

Bluebell Hill was Group E for four-channel analogue which covers the top two thirds of the band. All but two of the pre-switchover digital channels are in Group E, but two are below it (in the bottom third, aka Group A).

Sensitivities drop off gradually, but the fact that the weaker signals are out of group would have been likely to cause issues for some futher away. Wideband aerials may have been fitted so as to pick up the two Group A channels.

Oh, and there is no such thing as a "digital aerial" ! I presume you have a wideband aerial.

After 27th, all Bluebell's channels will be within Group E, with only one being outside of Group B (middle third) and at that it is only one channel outside, so Group Bs will probably work.

For an explanation of aerial groups, see Aerials, TV Aerial and Digital Aerial

-----

I digress.

What you don't know is if the overloading is occuring on the input of the distribution amplifier or the input to each TV or a bit of both.

If the signal on the input of the amp is too high for it to cope with, then it stands to reason that the outputs will be distorted. No amount of attenuation of the outputs will right the problem and no amount of reduction of amplification will right the problem.

So you need to go to square one and see what sort of level you have from the aerial by connecting directly to it.

You "may" find that there is that much signal that you replace the powered amp with a non-powered splitter.

If you still have your old aerial (the one that you replaced the current high gain one with), then that may be suitable. All channels are in group and the signal strength will be on a par with the former analogue that it used to pick up.

For more information on this subject, see www.aerialsandtv.com

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Dave Lindsay's 5,724 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

5:47 PM

John Langley: You can pick attenuators up of sites like eBay. ATV also sell them.

I personally find that, since Maplin went onto the high street, its prices tend to be high and that the stuff it sells can be obtained for less from online sources.


It's good practice to use F-connectors for connections that are perminant (so to speak) such as in the loft. Use coax connectors for behind the TV set.

Some attenuators have coax connections, some have F-connectors.


To connect a TV directly to the aerial, connect the cable from it to one of the output feeds to one of the rooms. Bear in mind that there will be a certain amount of loss in that cable; that is the signal coming out of the cable into the TV will be lower than that coming out of the aerial cable (in the loft) and going into the feed to the room where the TV is.

You could take a TV into the loft and try it directly.

And/or reduce the level of amplification if it has a control on it. See if this rectifies the problem.

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Dave Lindsay's 5,724 posts GB
Friday, 15 June 2012
Transmitter engineering
sentiment_very_satisfiedOwner

10:29 AM

BLUEBELL HILL transmitter - Analogue BBC ONE Off Air; DSO related from 23:58 on 12 Jun to 01:12 on 13 Jun [BBC]

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Transmitter engineering's 138,029 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

10:29 AM

BLUEBELL HILL transmitter - Analogue BBC ONE Off Air; DSO related from 23:58 on 12 Jun to 01:12 on 13 Jun [BBC]

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Transmitter engineering's 138,029 posts xx
Monday, 18 June 2012
Transmitter engineering
sentiment_very_satisfiedOwner

11:28 AM

BLUEBELL HILL transmitter - Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 138,029 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

11:28 AM

BLUEBELL HILL transmitter - Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK] Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 138,029 posts xx
Tuesday, 19 June 2012
Transmitter engineering
sentiment_very_satisfiedOwner

3:28 PM

BLUEBELL HILL transmitter - Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

link to this comment
Transmitter engineering's 138,029 posts xx
Transmitter engineering
sentiment_very_satisfiedOwner

3:28 PM

BLUEBELL HILL transmitter - Over the next week Bluebell Hill main transmitter: TV (analogue) working normally, TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]

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Transmitter engineering's 138,029 posts xx
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