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

first published this on - UK Free TV
sa_streetviewGoogle Streetviewsa_gmapsGoogle mapsa_bingBing mapsa_gearthGoogle Earthsa_gps50.676,-1.369 or 50°40'35"N 1°22'7"Wsa_postcodePO30 4HT


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 05/06/2023 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

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.

 V max
 H max
C24 (498.0MHz)
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, 250 BBC Red Button, plus 16 others

 V max
 H max
C27 (522.0MHz)
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, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

 V max
 H max
C21+ (474.2MHz)
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

 H -6dB
 V -6dB
C25 (506.0MHz)
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 Player, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

 H -6dB
 V -6dB
C22+ (482.2MHz)
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

 H -6dB
 V -6dB
C28 (530.0MHz)
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

 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

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.

Monday, 23 April 2012
Dave Lindsay

4:20 PM

Ray: The power of the Commercial (COM) multiplexes, SDN, ArqA and ArqB are 50kW horizontal and 200kW vertical. The Public Service ones are 200kW horizontally and vertically.

Your issue isn't forced to be weak signal. It could be interference from another transmitter such as Crystal Palace which is co-channel for the COMs. The difference is that Crystal Palace only transmits horizontally, so you will probably be best advised to switch your aerial to vertical.

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Dave Lindsay's 5,724 posts GB
4:53 PM

I wish they would do away with the nag screen on ITV1 etc to retune if missing channels.

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MC48's 4 posts GB
I Pike
9:55 PM

Hi I have done last retune 18th April. Service has always been good on all channels but now can hardly get yesterday also itv 3 not good. Very disapointed as led to believe service would be much better after new transmitter.

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I Pike's 1 post GB
Dave Lindsay

10:39 PM

I Pike: Ensure that your receiver is tuned to Rowridge for these services. Go to ITV3 and bring up the signal strength screen and check that it is tuned to UHF channel 25. Likewise for Yesterday it is C28. Pick TV is C22.

If you are tuned to Rowridge, then you may benefit from switching your aerial to vertical.

The Public Service channels (BBC, ITV1, Channel 4, Channel 5 etc) are at a transmission power of 200kW horizontally and vertically. The Commercial ones (ITV3, Pick TV, Yesterday, Film 4, Dave etc) are 50kW horizontally and 200kW vertically.

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Dave Lindsay's 5,724 posts GB
Dave Lindsay

10:42 PM

I Pike: I should also point out that the three Commercial channels use the same frequencies as Stockland Hill and Crystal Palace, so depending on your location they could be the cause of interference.

On Wednesday when the Rowridge Commercial channels changed channels, the power of Stockland Hill went up, and Crystal Palace's came on air at its switchover.

Without knowledge of your location, I can't know how likely this might be that it is interference.

Switching your aerial to vertical should help with that if it is. It will be two-fold:

1. A stronger signal.

2. Greater rejection of the unwanted signals as they are horizontal only.

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Dave Lindsay's 5,724 posts GB
Tuesday, 24 April 2012
10:01 AM


thank you for your reply.

Would you think it is possible that whilst there may be interference on ArqA and ArqB from Crystal Palace, there is none on SDN?

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Ray's 12 posts GB
Dave Lindsay

11:08 AM

Ray: Different frequencies travel differently. So in the days of analogue if you remember ever siting an aerial, there were places where one channel was good but another wasn't so. This is because different frequencies get bounced around, refracted etc in differently, so at the point of reception they may not all be of equal strength.

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Dave Lindsay's 5,724 posts GB
4:27 PM

I have to share 'Ray's concern. I am also in location PO80PZ. Since the change over I have intermittent connections on all my TV's. I have also retuned all sets several times with no improvements. On turn-on I always get 'no signal' before the TV finally finds the stations and several times during viewing intermittent viewing. I have a DVT-Finder ( Labgear) which I have used occational. I have observed that dB reading has reduced from 80 to 70 strength.
It would be expensive to replace or reposition the existing aerial without any guarantee it would work.
This would appear to be a location problem. What is your solution?

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PeterC's 2 posts GB
Denzil Dexter
5:56 PM

Hello all,
I live in Poole, BH17 and have, since the 18th April, been having problems with Really, E4+1 and Dave. The picture stays for about 30s with approx 65% signal strength and 100% quality, then drops to 0% and 0% before repeating the cycle. I get this on my Sony TV and Sony PVR.

I have a wideband aerial (2yrs old) on a mast on the roof together with a 17db to 27db mast head amplifier. I have reduced the mast head amplifier to it's minimum 17db setting having read the signal may have been too high post switch over (without it I lose the above channels as the signal is too low).

Can anyone suggest a way forward so that I can reliably receive these channels or at least shed some light on what might be going on?

Kind regards,

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Denzil Dexter's 3 posts GB
Dave Lindsay

6:24 PM

Denzil Dexter: Change your aerial to vertical polarisation if you can.

The Commercial channels (including the ones you mention) are 50kW horizontally and 200kW vertically. The Public Service channels (BBC, ITV1, Channel 4, Channel 5 etc) are 200kW horizontally and vertically.

Also, the three Commercial channels are co-channel with their partners from Stockland Hill. The only difference being that Stockland is horizontally polarised only. So switching to vertical should help reject Stockland if it is interfering and should also help pick up more signal from Rowridge.

Also, if I were you, I wouldn't assume that the problem is too low a signal. That is not, of course to say that it isn't the case. Be mindful that too much signal can appear as too little signal where digital is concerned.

See Freeview signals: too much of a good thing is bad for you | - independent free digital TV advice

I should imagine that if you do have too much signal, then based on your distance from the transmitter it won't be as a result of the aerial. It is more likely to be due to the amplifier.

Another thing is that it could be that the higher power Public Service channels are acting to de-sensitise your receiver, thus it doesn't "hear" the lower power Commercial channels which are nearby. Reducing or removing your level of amplification could help rectify that.

Indeed, if you're DIYing it, then I would start off by removing the booster and switching the aerial to vertical and then work from there.

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Dave Lindsay's 5,724 posts GB
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