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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, 28 May 2014
J
jb38
sentiment_very_satisfiedPlatinum

9:08 PM

Nick Taylor: As Channel 5 is on the same Mux (D3&4) as ITV1 / Channel 4 etc then there is no reason for you not being able to view it unless some glitch has taken place in the tuner, therefore as a first measure I would try removing the the aerial from the device followed by carrying out an auto-tune for the purpose of blanking out anything stored in the tuner, once completed reconnect the aerial and make sure that you get a "no signal" message if you try to select a programme channel, if not (which is correct) then carry out another auto-tune to load the programmes back into the tuners memory.

If Channel 5 has returned good and well, but if not then you will have to carry out a factory reset on the hard drive device, this also brand dependant known as "default setting" or "first time installation".

link to this comment
jb38's 7,179 posts GB flag
Thursday, 29 May 2014
J
jb38
sentiment_very_satisfiedPlatinum

9:28 AM

Nick Taylor: Re: my reply to your posting, please cut the following > > if not (which is correct) < < which on reading over same tends to be somewhat ambiguous.

I also meant to add to my reply, that channel 5+1 which you report as being able to see is not transmitted by the same D3&4 Mux as used by Channel 5, but by the COM4/SDN Mux as used by ITV3 / Drama / QVC etc.

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jb38's 7,179 posts GB flag
Tuesday, 3 June 2014
P
Phil Clifford
11:01 AM

Hi, I have full uninterrupted sight of Rowridge, but experience regular freezing/pixelating of pictures, this with a stated 100% quality but only approx 40% strength of signal.

I have an external HP aerial & am I postcode SO317 BB. What can you suggest please to ensure better reception & access to all published channels? Thanks.

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Phil Clifford's 2 posts GB flag
M
MikeB
sentiment_very_satisfiedPlatinum

2:43 PM

Phil Clifford: If you put your postcode into this site (or just Digital Uk's site), you'll see that your just 23km from the transmitter, so its not surprising that your tuner is screaming - the signal is way too high.

See here for how to cure it: Freeview signals: too much of a good thing is bad for you | Digital switchover | ukfree.tv - 11 years of independent, free digital TV advice

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MikeB's 2,579 posts GB flag
P
Phil Clifford
7:51 PM

MikeB, thanks for your comment, something that I suspected but have no experience of - I will give that a go.

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Phil Clifford's 2 posts GB flag
Saturday, 7 June 2014
V
Vic Savy
10:33 AM

I get digital TV transmissions from the Fenham transmitter. Do you know if there is information somewhere that will tell me when COM7 will be available from that transmitter?

link to this comment
Vic Savy's 2 posts GB flag
K
KMJ,Derby
sentiment_satisfiedGold

10:46 AM

Vic Savy: Digital UK are showing 17th June 2014 for the start of COM7 transmissions from Fenham.

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KMJ,Derby's 1,811 posts GB flag
Monday, 9 June 2014
C
colin1951uk
3:58 PM
Eastleigh

Could one of our aerial installer friends advise me on a couple of points please.

A) I've had a leaflet through the the door today about 4G starting in my area (from you know who) but I was always under the impression that the Rowridge transmitter was immune from 4G transmissions because its channels are well away from the spectrum used by 4G. Am I a bit naive in thinking this and any idea how close you have to be to a 4G mast to expect any problems?

B) I had to have a new aerial/cable installation done a month ago come this Friday due to water ingression and everything has been fine until this past week when I've started noticing what I would call a 'shadow' effect (not proper ghosting) to the right of word banners (for instance rolling film credits are a good example) and people if there is a crowd on the screen (I've noticed it in particular when watching football as the players look to have little shadows chasing them.) I can't believe the new aerial is at fault here and wondered what causes this effect (Googling hasn't made me any the wiser.) Can anyone help me isolate and fix this effect please?

Thanks...Colin

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colin1951uk's 20 posts GB flag
colin1951uk's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
J
jamie stevens
sentiment_satisfiedSilver

7:50 PM

colin1951uk:

hi, I am a local RDI approved aerial installer

in response to A - you are correct in saying Rowridge transmits at lower levels away from 4G, however there may be parts of your system that are prone to receiving 4G such as a wideband aerial receiving 21-68 (which you shouldn't have as its new) and also an amplifier receiving 21-68, which again you shouldn't have, if you have an amplifier it should either be 4G protected but if you do have an older one which can receive 21-68 then your recent installer should have fitted a 4G filter in preparation for protection.

in response to B - from your description this sounds like an issue with the tv set itself

regards

Jamie stevens
Jays Cabling Services

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jamie stevens's 207 posts GB flag
Tuesday, 10 June 2014
J
jb38
sentiment_very_satisfiedPlatinum

12:06 AM

colin1951uk: In addition to jamie's reply, in areas where DTT reception is liable to be affected by 4G transmissions the reason for is simply down to the powerful (usually) RF signal transmitted by the latter swamping the TV's (or boxes) tuners input circuitry thereby desensitising it to the reception of DTT signals.

As 4G transmissions take place above C60 then the tuner swamping effect of diminishes in a downwards pattern from that channel, and as Rowridges channel span ranges from C21 - C31 then its highly unlikely to be affected "unless" the 4G transmitter is located within say 750ft or so of the receiving aerial, or at a slightly greater distance if its located directly in line with the signal path from the Rowridge transmitter.

Of course the other factor which does play a role in whether or not reception is affected by 4G is the strength of the signal being received from the Rowridge transmitters, because if the signal is inclined to be a little on the low side then the effect of 4G will be much greater, likewise less on strong signals.

I would advise you to leave things as they are for the time being as the 4G issue is somewhat over hyped, likewise you may find that your reception has not really changed after the 4G transmitter comes into service, however it would be prudent to try and find out where the 4G transmitter is located relative to that of your location.


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jb38's 7,179 posts GB flag
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