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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 25/09/2023 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, 28 ITVBe, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

 V max
 H max
C21+ (474.2MHz)
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, 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, 38 Channel 5 +1, 41 Legend, 42 Great! Movies Action, 57 Dave ja vu, 58 ITVBe +1, 59 ITV3 +1, 64 Blaze, 67 CBS Reality, 69 HorrorXtra, 78 TCC, 81 Blaze +1, 89 ITV4 +1, 91 WildEarth, 203 CITV, 208 Pop Player, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 16 others

 H -6dB
 V -6dB
C22+ (482.2MHz)
Channel icons
 Smithsonian Channel, 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, 60 Drama +1, 70 Quest +1, 71 That's 60s, 74 Yesterday +1, 75 That's 70s, 233 Sky News, plus 9 others

 H -6dB
 V -6dB
C28 (530.0MHz)
Channel icons
 Quest Red +1,  Classic Hits, 12 Quest, 25 W, 27 Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! romance, 73 HobbyMaker, 76 That's 80s, 82 Talking Pictures TV, 83 Together TV, 84 PBS America, 90 Together TV +1, 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.

Tuesday, 24 April 2012
Denzil Dexter
8:47 PM

Thanks very much for the advice Dave. I did as you suggested and switched the aerial to vertical polarisation, removed the amplifier and tried again. Problem is the same, all channels are fine except those on the COM5 multiplexor. The interference happens every 32 seconds, which is really strange.

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Denzil Dexter's 3 posts GB flag
Denzil's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Dave Lindsay

8:56 PM

Denzil Dexter: I'm not sure what else to suggest. Perhaps one of the pros will be along soon.

jb38 can you help Denzil?

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Dave Lindsay's 5,724 posts GB flag

10:41 PM

My problems are with all programmes withing COM5 (C22) too, just like Denzil Dexter. I have tried everything and all I get is pixelation and drop-outs since the retune on the 18th. I used to enjoy watching Sky News but now it is impossible. All the other muxes are fine, its just COM5.

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Solent-Viewer's 39 posts GB flag
Mark Fletcher

10:52 PM

Denzil Dexter,Poole.One possibility of your difficulty in what you mentioned the ArqA/COM5 multiplex on frequency 22 from the main Rowridge transmitter is your first post,you stated your aerial is a group W wideband aerial (tipped black) plus you use a 17db-27db mast head amplifier as without it you lose the channels you stated.

First of all Rowridge transmitter is an all group A mast and the group W wideband aerial you are using is largely of little use on an all group A transmitter within a poor/marginal reception area within Rowridge itself,especially on the lowest frequencies such as what you described earlier in your first post.

Your best remedy at extra cost is to replace your group W wideband aerial and possibly your mast amplifier (retain the latter just in case) and buy a group A Yagi 18A or preferably for slightly extra gain in your location a group A X beam XB16A aerial with black coloured superior copper-copper co-ax cable and importantly brass co-ax plugs.

If you did decide to follow the above then position your new group A aerial (X Beam preferred at your location) if you decided to proceed,vertically.If you still find the gain a wee bit low then try your mast head amplifier as a last resort,however you may find that a new group A X beam aerial with new cable and plug what i described above positioned vertically at your location aimed at Rowridge should do the trick.

One reminder i forgot to add a group A aerial will be tipped red and only group A aerials should be used on an all group A transmitter such as Rowridge itself in a poor/marginal reception area on this mast.
Look up the ATV Sheffield website,they are the UK's No1 aerial retailers,believe me they are the best,forget the rest !

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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
Wednesday, 25 April 2012
5:25 PM

We are on the Rowridge Transmitter and lost Film 4 and others on Channel 28.

The aerial is in the loft with a mast head amplifier ( which was essential with analogue ).

The solution to the problem was to remove the mast head amplifier, the lost channels became available at a stroke when retuning.

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Bill's 1 post GB flag
Bill's: mapB's Freeview map terrainB's terrain plot wavesB's frequency data B's Freeview Detailed Coverage
Thursday, 26 April 2012
Robin Burnett
12:12 PM

After fitting a new roof aerial, there are missing channels - ITV3 (Channel 10) no signal and Yesterday (Channel 12) pixelates badly from the Rowridge transmitter. Returned three times with the same result.
Any advice would be appreciated.

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Robin Burnett's 2 posts GB flag
Robin's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Dave Lindsay

1:03 PM

Robin Burnett: At just over a mile from this high power transmitter, your receiver could well be suffering from signal overload problems or at least the higher power (horizontally) Public Service channels acting to make reception of the Commercial ones more problematic.

I am wondering why you have replaced your aerial. The one used for analogue would be expected to work fine as all channels are within Group A.

The situation with Rowridge is that it now transmits horizontally and vertically. The Public Service channels (BBC, ITV1, C4, C5 etc) are 200kW horizontally and vertically and the Commercial ones (those you're having issues with) are 50kW horizontally and 200kW vertically. If you haven't done so, then switch your aerial to vertical.

You really need the smallest aerial you can get. Have a look at:

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

With just over a mile, you may well find that a 20dB attenuator isn't enough. Perhaps you will need a high value fixed one (e.g. 24dB) and a variable 20dB one. Connect them inline and adjust the variable one.

One of the issues that is likely occur is that the high power signals will desensitise your receiver to signals that aren't as strong. This is like when your eyes desensitise when exposed to higher levels of light.

Don't get me wrong, at a mile a 50kW signal is very strong!!!

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Dave Lindsay's 5,724 posts GB flag
Robin Burnett
1:46 PM

Many thanks Dave for extremely useful advice which I will follow through with the firm who installed the new aerial. They also fitted a booster when they installed 3 lines from the aerial and it appears that this is needed to get any reception. Previously used Sky through a dish but discontinued to transfer to Freeview on switchover.

It could be that the property, whilst only about a mile from the transmitter, is in a valley and the transmitter cannot be seen. Not sure if this is affecting the signal.

I appreciate your help.

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Robin Burnett's 2 posts GB flag
Robin's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Friday, 27 April 2012
Bob Norris
12:10 PM

After reading through the problems other people have been having re. Rowridge and pixelation on ITV3,Yesterday etc I did what was suggested and turned my aerial through 90deg. from horizontal to vertical. The picture is now perfect. Thanks for the help.
I am in the SO31 area

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Bob Norris's 1 post GB flag
Dave Lindsay

12:31 PM

Robin Burnett: Whilst line-of-sight is of course the best, such a high power transmitter can still be effective (and not require a booster) over the brow of a hill.

It is possible that the signal strength from your aerial into your amplifier is too high for the amp to cope with. This means that all outputs will be distorted and no level of attenuation on the inputs to the TVs will repair this bad signal.

The purpose of the booster is presumably to provide equal signal levels at each aerial socket.

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Dave Lindsay's 5,724 posts GB flag
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