menuMENU    UK Free TV logo Freeview

 

 

Click to see updates

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.

This transmitter has no current reported problems

The BBC and Digital UK report there are no faults or engineering work on the Rowridge (Isle Of Wight, England) transmitter.

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.

MuxH/VFrequencyHeightModeWatts
PSB1
BBCA
 V max
 H max
C24 (498.0MHz)
320mDTG-3200,000W
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, 250 BBC Red Button, plus 16 others

PSB2
D3+4
 V max
 H max
C27 (522.0MHz)
320mDTG-3200,000W
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, 30 E4 +1, 35 ITV1 +1 (Meridian south coast),

PSB3
BBCB
 V max
 H max
C21+ (474.2MHz)
320mDTG-6200,000W
200,000W
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

COM4
SDN
 H -6dB
 V -6dB
C25 (506.0MHz)
299mDTG-850,000W
50,000W
Channel icons
12 Quest, 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 MAX, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, plus 15 others

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

COM6
ArqB
 H -6dB
 V -6dB
C28 (530.0MHz)
302mDTG-850,000W
50,000W
Channel icons
 FreeSports, 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 Aljazeera English, plus 19 others

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

DTG-3 64QAM 8K 2/3 24.1Mb/s DVB-T MPEG2
DTG-6 256QAM 32KE 2/3 40.2Mb/s DVB-T2 MPEG4
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
Sunday, 18 March 2012
K
Kim V
9:11 AM

hello, thank for you reply. I am using the Rowridge transmitter, from your map above, my location is in the bright green area. It used to be fine before switchover. How could I check what the box is seeing?

link to this comment
Kim V's 5 posts GB
D
Derek Green
11:07 PM

Hi Kim V,

I am in Canford Cliffs and have had problems since the first change made on 7 March. The BBC channels all have had problems, however, unusually part of this is for another reason. There has been a high pressure zone over Northern France around this time that has caused co-channel interference and break up/pixellation on BBC channels. Although theoretically I should always have had a reasonable signal, I have always had to have 3 boosters in a chain to get Freeview reception from Rowridge. The BBC changes and the weather situation caused me additional headaches, like you.

I think you should try a "factory reset" on your TV and also your TopUp box. Then try a re-scan of the Freeview channels. You should be able to find how to do the reset in manuals for the TV and box. This reset will take your equipment back to the situation when you first unpacked them from their boxes. I think you will get back a lot of your missing channels. I did. The weather situation is changing, with the troublesome high pressure zone becoming more diffuse. (You will get interference from French digital channels that use the same frequencies but only when the high pressure is south of our coast.)

You should perform the factory reset again on March 21 and another rescan for stations.

Let us know how you get on, please?

link to this comment
Derek Green's 8 posts GB
Monday, 19 March 2012
S
Stevem
11:37 AM

Derek

I live on Canford Heath as well and have the same boosters and seen the same co-channel interferece as you. Prior to the 7th March, BBC channels were stable but ITV, Channel 4 etc were often poor, presumably because of their low power. Indeed on the morning of 7th March it took two tunings to find ITV etc.

Analogue ITV used to be poor but lately it has been very good and a suitable alternative for when digital was unwatchable. I hope the boost to 50kW on Wednesday solves the problem, but it is a shame that the change of BBC channels is now subject to interference.


link to this comment
Stevem's 3 posts GB
D
Derek Green
5:00 PM

Stevem

I think Canford Heath is further inland than where I am, Canford Cliffs? People have often been surprised that we are almost within sight of the IOW but our road has notoriously bad reception from Rowridge.

I agree it is bad that the BBC multiplex seems now to be the one that suffers from French station interference.

I am contemplating trying to remove one or more boosters after Wednesday. Like you, I hope the power boost will be enough to minimise co-channel interference. I have FreeSat in our main viewing room, so I am luckily not too dependant upon Freeview. However, some rooms have Freeview standalone sets and not FreeSat.

link to this comment
Derek Green's 8 posts GB
D
Derek Green
5:11 PM

I wasn't aware until I re-read the switchover details that the Rowridge transmitter will be unusual in that it will transmit the boosted power Freeview transmissions with both Vertical and Horizontal polarisation. It would have been nice to know about that from BBC/ITV etc i.e Freeview authorities. This means that all of us who have had problems might also try mounting our aerials with either horizontal or vertical orientated elements. This is new to me and I thought I was technically aware (ex BBC engineer! long time ago!).

So try removing boosters, and also try re-orientating your aerial elements (the metal bars) to be horizontal or vertical and check the signal strength on a few stations across the range. Do it after March 21st.

Question for Freeview authorities (won't read this?) is "Was this mixed polarisation designed to minimise French co-channel interference under high pressure weather zones over Northern France?"

I hope people are reading this. This post seems to be a long way down the Rowridge page!

link to this comment
Derek Green's 8 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

5:13 PM

Derek Green: Can you not get a more reliable signal from the Poole relay?

link to this comment
Dave Lindsay's 5,724 posts GB
S
Stevem
5:19 PM

Derek

I misread your location but was fascinated that your situation was the same as mine.

I found a site that is a mine of information including this:

Post switchover Rowridge will (uniquely) be transmitting in vertical as well as horizontal polarity in order to lessen the chances of co-channel interference. The aim is to give people the option to use either polarity and therefore take advantage of cross polar rejection to help reject the unwanted transmissions.

The site is Rowridge Transmitter and much of the technical stuff will make more sense to you than it does to me.

link to this comment
Stevem's 3 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

5:23 PM

Derek Green: The vertical element of the COMs will only be introduced on 18th April when they change channels and when their ERP is increased.

The vertical element of the PSBs' signals has been introduced at switchover.

link to this comment
Dave Lindsay's 5,724 posts GB
K
Kim V
5:27 PM

hello Derek and Steve,
thank you very much for your input, that is very helpful. I tried the 'reset' several times to no avail, until I decided to unplug everything, and reconnect later. I tuned the tv on its own, and it worked (albeit not all the channels available before switchover). Retuned the DTR box. At least the two items are now talking to each other. My Bbc channels remain jerky, pixelating etc. Maybe high pressure has something to do with it. I too, find the change to vertical polarisation fascinating. Potential reception trouble? (50.6760,-2.2297) 

link to this comment
Kim V's 5 posts GB
Dave Lindsay
sentiment_very_satisfiedPlatinum

5:45 PM

Kim V: Confirm that the jerky BBC channels are coming in on channel 24 and not 46 which is Winterborne Stickland or even 61 which is Mendip.

link to this comment
Dave Lindsay's 5,724 posts GB
Select more comments

Your comment please
Please post a question, answer or commentIf you have Freeview reception problems before posting a question your must first do this Freeview reset procedure then see: Freeview reception has changed, Single frequency interference, and Freeview intermittent interference.

If you have no satellite signal, see Sky Digibox says 'No Signal' or 'Technical fault'

If you have other problems, please provide a full (not partial) postcode (or preferably enter it in box at the top right) and indicate where if aerial is on the roof, in the loft or elsewhere.

UK Free TV is here to help people. If you are rude or disrespectful all of your posts will be deleted and you will be banned.








Privacy policy: UK Free Privacy policy.