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Full Freeview on the Rowridge (Isle Of Wight, England) transmitter

first published this on - UK Free TV
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The symbol shows the location of the Rowridge (Isle Of Wight, England) transmitter which serves 620,000 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 Rowridge (Isle Of Wight, England) mast?

Rowridge transmitter - Rowridge transmitter: Possible effect on TV reception week commencing 25/03/2024 Pixelation or flickering on some or all channels Digital tick


Choose from three options: ■ List by multiplex ■ List by channel number ■ List by channel name
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Which Freeview channels does the Rowridge 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
 V max
 H max
C24 (498.0MHz)
320mDTG-200,000W
200,000W
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

PSB2
D3+4
 V max
 H max
C27 (522.0MHz)
320mDTG-200,000W
200,000W
Channel icons
3 ITV 1 (SD) (Meridian (South Coast 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),

PSB3
BBCB
 V max
 H max
C21+ (474.2MHz)
320mDTG-200,000W
200,000W
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

COM4
SDN
 H -6dB
 V -6dB
C25 (506.0MHz)
299mDTG-850,000W
50,000W
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 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 78 TCC, 81 Blaze +1, 83 Together TV, 89 ITV4 +1, 91 WildEarth, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 267 Al Jazeera English, plus 30 others

COM5
ArqA
 H -6dB
 V -6dB
C22+ (482.2MHz)
302mDTG-850,000W
50,000W
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

COM6
ArqB
 H -6dB
 V -6dB
C28 (530.0MHz)
302mDTG-850,000W
50,000W
Channel icons
12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 56 That's TV (UK), 61 GREAT! movies extra, 63 GREAT! romance mix, 71 That’s 60s, 73 HobbyMaker, 82 Talking Pictures TV, 84 PBS America, 235 Al Jazeera Eng, plus 18 others

LSO
 H -13dB
C37 (602.0MHz)299mDTG-1210,000W
Channel icons
from 22nd December 2014: 7 That's Solent,

DTG-8 64QAM 8K 3/4 27.1Mb/s DVB-T MPEG2
DTG-12 QSPK 8K 3/4 8.0Mb/s DVB-T MPEG2
H/V: aerial position (horizontal or vertical)

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

regional news image
BBC South Today 1.3m homes 4.9%
from Southampton SO14 7PU, 26km north (354°)
to BBC South region - 39 masts.
regional news image
ITV Meridian News 0.9m homes 3.6%
from Whiteley PO15 7AD, 24km north-northeast (20°)
to ITV Meridian (South Coast) region - 39 masts.
All of lunch, weekend and 50% evening news is shared with all of Meridian plus Oxford

Are there any self-help relays?

Portsmouth DocksTransposer2 km N city centre50 homes Estimate. Group of houses'

How will the Rowridge (Isle Of Wight, England) transmission frequencies change over time?

1950s-80s1984-971997-981998-20122012-132 May 2018
VHFA K TA K TA K TA K TW T
C3BBCtvwaves
C21C4wavesC4wavesC4waves+BBCBBBCB
C22+ArqAArqA
C24BBC2wavesBBC2wavesBBC2wavesBBCABBCA
C25SDNSDN
C27ITVwavesITVwavesITVwavesD3+4D3+4
C28ArqBArqB
C29LSO
C31BBC1wavesBBC1wavesBBC1wavescom7
C37com8
C55tv_offcom7tv_off
C56tv_offCOM8tv_off

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 7 Mar 12 and 21 Mar 12.

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

Analogue 1-4 500kW
PSB1||, PSB1≡, PSB2||, PSB2≡, PSB3||, PSB3≡(-4dB) 200kW
COM4≡, COM4||, COM5≡, COM5||, COM6≡, COM6||(-10dB) 50kW
com7≡(-13.1dB) 24.4kW
Mux 1*, Mux 2*, Mux A*, Mux B*, Mux C*, Mux D*(-14dB) 20kW
com8≡(-14.3dB) 18.4kW
LSO≡(-17dB) 10kW

Which companies have run the Channel 3 services in the Rowridge 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. Rowridge 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
Wednesday, 11 May 2016
J
jb38
sentiment_very_satisfiedPlatinum

6:52 AM

TIMOTHY GAUNTLETT: Re The two way splitter referred to in my reply. Rather than using the powered version its best to initially try one of those simple low cost non powered "Y" types for the following reason.

Daisy chaining the aerial through "some" devices of the older variety can actually increase the signal level being fed into the TV, and if your DVD recorder comes into this category? the missing PSB channels problem might possibly be caused by the TV's tuner being overloaded for this very reason, as channels do not normally disappear by passing the aerial through DVD recorders etc prior being connected into a TV.

I would be interested to know the model number of the device in question, as some types had a switchable signal boosting facility.


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jb38's 7,179 posts GB flag
Thursday, 12 May 2016
J
jb38
sentiment_very_satisfiedPlatinum

9:39 PM

TIMOTHY GAUNTLETT: In addition to that said in my previous reply, and although unlikely to apply, but if your DVD recorder / player is indeed one of the older variety? then it might be fitted with an RF modulator similar to that found in older Freeview boxes / VCR's etc, if it does? then make sure that the RF modulators output channel is set above C60 to avoid interference to Freeview reception, as C21 would wipe out reception of Rowridge's PSB3 / BBC B channels, i.e: 101 - 105.


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jb38's 7,179 posts GB flag
Sunday, 15 May 2016
J
James Watt
6:34 AM

If I recall correctly, RF modulators were mostly centred on CH36.

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James Watt's 1 post GB flag
MikeP
sentiment_very_satisfiedPlatinum

4:02 PM
Trowbridge

James Watt:

That was correct several years ago but for the last 15 years or more many equipments have had adjustable modultaors that could be set between Ch21-68. The objective of such range was for the instances where the previously 'unused' channels (35-38) became occupied by a broadcasting service. That then meant that if the modulator could not be adjusted away from that range (as most older ones couldn't) then the user suffered interference from the modulator signal, either co-channel, adjacent channel or adjacent+2 - all of which are problematic for viewers.

Such adjacency is less of a problem with digitally encoded UHF TV transmissions as they carry error correction capabilities that were not suitable for analogue encoded UHF TV transmissions.



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MikeP's 3,056 posts GB flag
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
J
jb38
sentiment_very_satisfiedPlatinum

4:26 PM

James Watt: Yes, as the RF modulators fitted into analogue VCR recorders of the real yesteryear variety were pre-set from the factory around C36, the only adjustment possible (although only in the 30's) being of a sweep nature via a screwdriver inserted into a small hole in the rear panel of the device. However in later devices where the modulators RF output channel was set up via the menu, C21 was (in my experience) the pre-set starting channel, the RF output channel being adjustable between 21 - 68.


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jb38's 7,179 posts GB flag
Friday, 27 May 2016
T
TIMOTHY GAUNTLETT
11:26 PM

jb38: Hi there, PROBLEM SOLVED! My DVD recorder has the facility to either adjust the RF output or if connected to the TV thru scart turn off altogether which was the option I chose and the result was I am now receiving all the HD channels I was missing. Thank you very much for your excellent help, your speedy response and advice. I have learned a great deal from our exchanges and am very grateful.
Regards Tim Gauntlett


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TIMOTHY GAUNTLETT's 4 posts GB flag
Saturday, 28 May 2016
J
jb38
sentiment_very_satisfiedPlatinum

12:10 AM

TIMOTHY GAUNTLETT: Excellent news!, really pleased to see that you have succeeded in rectifying the problem, because as an engineer (albeit RF) of many years standing, I am always interested in the outcome of problems which could be said to come into the category of "odd".

Many thanks for the kind comments.

Regards / jb.

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jb38's 7,179 posts GB flag
Thursday, 2 June 2016
Transmitter engineering
sentiment_very_satisfiedOwner

8:32 PM

ROWRIDGE transmitter - Freeview: BBC Digital TV Off Air from 19:54 today to 19:54 today, BBC Digital TV Off Air from 19:54 today to 19:54 today. [BBC]

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Transmitter engineering's 149,799 posts xx flag
Friday, 3 June 2016
Transmitter engineering
sentiment_very_satisfiedOwner

5:31 AM

ROWRIDGE transmitter - Freeview: BBC Digital TV Off Air from 19:54 yesterday to 19:54 yesterday, BBC Digital TV Off Air from 19:54 yesterday to 19:54 yesterday. [BBC]

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Transmitter engineering's 149,799 posts xx flag
Saturday, 4 June 2016
Transmitter engineering
sentiment_very_satisfiedOwner

5:31 AM

ROWRIDGE transmitter - Freeview: BBC Digital TV Off Air from 19:54 on 02 Jun to 19:54 on 02 Jun, BBC Digital TV Off Air from 19:54 on 02 Jun to 19:54 on 02 Jun. [BBC]

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Transmitter engineering's 149,799 posts xx flag
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