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Full Freeview on the Midhurst (West Sussex, England) transmitter

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps51.017,-0.701 or 51°1'2"N 0°42'4"Wsa_postcodeGU28 9EA


The symbol shows the location of the Midhurst (West Sussex, England) transmitter which serves 94,000 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.

Are there any planned engineering works or unexpected transmitter faults on the Midhurst (West Sussex, England) mast?

MIDHURST transmitter - DAB: Off the air due to essential engineering from 14 May 11:10 until 14 May 11:17. . BBC

Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name

Which Freeview channels does the Midhurst 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.

 H max
C48 (690.0MHz)299mDTG-20,000W
Channel icons
1 BBC One (SD) South, 2 BBC Two England, 9 BBC Four, 23 BBC Three, 201 CBBC, 202 CBeebies, 231 BBC News, 232 BBC Parliament, plus 17 others

 H max
C35 (586.0MHz)299mDTG-20,000W
Channel icons
3 ITV 1 (SD) (Meridian (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, 26 ITV4, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

 H max
C36 (594.0MHz)299mDTG-20,000W
Channel icons
46 5SELECT, 101 BBC One HD South, 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, 107 BBC Three HD, 204 CBBC HD, 205 CBeebies HD, plus 1 others

 H -3dB
C29 (538.0MHz)299mDTG-810,000W
Channel icons
20 Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

 H -3dB
C34 (578.0MHz)300mDTG-810,000W
Channel icons
11 Sky Mix, 17 Really, 19 Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 Drama +1, 65 That's TV 2, 70 Quest +1, 74 Yesterday +1, 75 That's 90s, 233 Sky News, plus 11 others

 H -3dB
C33 (570.0MHz)300mDTG-810,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

The Midhurst (West Sussex, England) mast is a public service broadcasting (PSB) transmitter, it does not provide these commercial (COM) channels: .

If you want to watch these channels, your aerial must point to one of the 80 Full service Freeview transmitters. For more information see the will there ever be more services on the Freeview Light transmitters? page.

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

regional news image
BBC South Today 1.3m homes 4.9%
from Southampton SO14 7PU, 51km west-southwest (256°)
to BBC South region - 39 masts.
regional news image
ITV Meridian News 0.9m homes 3.6%
from Whiteley PO15 7AD, 41km west-southwest (248°)
to ITV Meridian (South Coast) region - 39 masts.
All of lunch, weekend and 50% evening news is shared with all of Meridian plus Oxford

How will the Midhurst (West Sussex, England) transmission frequencies change over time?

1984-971997-981998-20122012-132013-182013-1716 Oct 2019
C54tv_off SDNSDN
C56tv_off D3+4D3+4

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 29 Feb 12 and 14 Mar 12.

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

Analogue 1-4 100kW
BBCA, D3+4, BBCB(-7dB) 20kW
SDN, ARQA, ARQB(-10dB) 10kW
Mux C*(-16dB) 2.5kW
Mux 1*, Mux 2*, Mux A*, Mux B*(-17dB) 2kW
Mux D*(-20dB) 1000W

Which companies have run the Channel 3 services in the Midhurst transmitter area

Aug 1958-Jan 1992Southern 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. Midhurst 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.

Thursday, 26 April 2012
Dave Lindsay

12:15 PM

Ann: This has happened in other areas. People who could receive the full Freeview service before switchover (and therefore on low power) found that a relay transmitter adjacent to them which they do not use wiped out any chance of receiving the Commercial channels (which the relay doesn't transmit anyway) when it came on air at switchover.

As an example, Steyning transmitter relays Midhurst's Public Service channels and rebroadcasts them on the same channels as Midhurst uses for its Commercial services. So those living in places where they can receive directly from Midhurst but close to Steyning transmitter will probably find that they can no longer get the Commercial services from Midhurst.

The reason that it's like this is because of scarcity of frequencies and the requirement to fit it more services, albeit that they (the Commercial services) are quasi-national.

In the days of analogue, all transmitters had four channels each. Now the main ones that serve large areas have six and the "filler-in" relays have three.

Midhurst is one of those where the transmission power of the three Commercial channels are lower than that of the Public Service channels. The "re-use" of these channels in closer proximity to the re-use of the Public Service ones is probably the reason for this.

As KMJ,Derby says, a wideband aerial isn't the best for Rowridge in poor reception areas. The sensitivity of these aerials is lower at Group A (bottom third) channels which Rowridge uses exclusively. See these plots:

Gain (curves), Again

See also:

Rowridge Transmitter

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Dave Lindsay's 5,724 posts GB flag

12:54 PM

Thanks. There must be a great number of disgruntled viewers, then.

Why is C50 from Horndean not picked up, though - not that I want it, as it is D3+4 and not ArqB (as from Midhurst).

My husband wondered if an attenuator would be sufficient to stop the Horndean interference as it is only 5w. What do you think?

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Ann's 66 posts GB flag
Dave Lindsay

1:14 PM

Ann: You aren't picking up C50 from either because they are corrupting one another. Your aerial faces Midhurst and so picks up some of its C50 signal. However, even in that position, evidently, it picks up enough of Horndean's C50 to render either unuseable. In essence what you have coming down your aerial lead is the sum of both signals.

Remember that the aerial is most sensitive in the direction to which it faces, and is less so in other directions. However, it is probably in such a location that the unwanted signal is so strong that the lesser sensitivity in that direction (than forward facing) is still sufficient to pick up that signal.

I doubt that attenuation would help. The problem is that you would be reducing the level of everything coming down your aerial lead. So now have you a "large" poor quality/corrupted signal. Attenuating it will give you a "small" or "smaller" poor quality/corrupted signal.

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Dave Lindsay's 5,724 posts GB flag
Saturday, 28 April 2012
1:04 PM

@Dave Lindsay - Tuesday 27 March 2012 10:27AM
I have followed your advice about removing the aerial whilst tuning through unwanted channels and the result is fantastic. We receive all the correct channels perfectly. Thanks

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TrevorT's 1 post GB flag
Sunday, 29 April 2012
John Hutchinson
4:29 PM

We have a new wideband horizontal aerial installed in the loft under the switchover help scheme pointing at Midhurst with an excellent signal according to the installer. I cleared the tuners on my 2 digital TVs as recommended on 25 April and retuned them . I still receive fluctuating signal quality (0-6 out of 10)on the 3 multiplexes C50, 58 and 59 which makes them unwatchable.
What should I try next?

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John Hutchinson's 1 post GB flag
John's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Monday, 30 April 2012
9:49 PM

Could someone please let me know when the power for ArqA, ArqB and SDN will be increased. It's very frustrating not being able to receive these FREE channels, missing out on great films etc.

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Andrew's 3 posts GB flag

10:27 PM

Andrew: The COM muxes are now all transmitting at 10kW from Midhurst, which is full power for the current post DSO network.

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KMJ,Derby's 1,811 posts GB flag
Tuesday, 1 May 2012
4:59 PM

Sorry to contradict KMJ DERBY,still no Tx Channel 50 from Midhurst after several retunes over different days since APR 25th. Getting Tx Channel 28 from Crystal Palace though. RH121SY We have comummal aerial.

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Tom,Horsham's 4 posts GB flag
Tom,Horsham's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
Dave Lindsay

5:14 PM

Tom,Horsham: Not receiving C50 does not necessarily contradict KMJ,Derby as he did not say that you would be able to receive. It is, according to information from the powers that be, a fact that C50 is now up to its full final power of 10kW.

Before switchover, Midhurst's lowest channel was 55. I therefore wonder if your aerial system has a filter in place that is preventing C50 from going through it from the Midhurst aerial.

Below 55, there is only C50, so perhaps there is a filter that cuts off signals somewhere between the two.

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Dave Lindsay's 5,724 posts GB flag
Mark Fletcher

5:47 PM

Andrew.Difficult to say without a full postcode or nearby location as such.The answer is no to the question you asked depending on which main transmitter or relay mast you are on.

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Mark Fletcher's 673 posts GB flag
Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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