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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.

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
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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), 71 That’s 60s,

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 U&Drama, 21 5USA, 29 ITV2 +1, 32 5STAR, 33 5Action, 38 Channel 5 +1, 41 Legend, 42 GREAT! action, 57 U&Dave ja vu, 58 ITV3 +1, 59 ITV4 +1, 64 Blaze, 67 TRUE CRIME, 68 TRUE CRIME XTRA, 81 Blaze +1, 83 Together TV, 91 WildEarth, 93 ITVBe +1, 209 Ketchup TV, 210 Ketchup Too, 211 YAAAS!, 251 Al Jazeera English, 255 FRANCE 24 (in English), 265 Rok Sky +1, plus 29 others

COM5
ArqA
 H -6dB
 V -6dB
C22+ (482.2MHz)
302mDTG-850,000W
50,000W
Channel icons
11 Sky Mix, 17 Really, 19 U&Dave, 31 E4 Extra, 36 Sky Arts, 40 Quest Red, 43 Food Network, 47 Film4 +1, 48 Challenge, 49 4seven, 60 U&Drama +1, 65 That's TV 2, 70 Quest +1, 74 &UYesterday +1, 76 That's TV 2 MCR, 233 Sky News, plus 13 others

COM6
ArqB
 H -6dB
 V -6dB
C28 (530.0MHz)
302mDTG-850,000W
50,000W
Channel icons
12 Quest, 25 U&W, 27 U&Yesterday, 34 GREAT! movies, 39 DMAX, 44 HGTV, 52 GREAT! christmas, 56 That's TV (UK), 63 GREAT! romance mix, 73 HobbyMaker, 75 That's 90s, 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
Monday, 23 April 2012
Dave Lindsay
sentiment_very_satisfiedPlatinum

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 flag
M
MC48
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 flag
I
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 flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

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 flag
Dave Lindsay
sentiment_very_satisfiedPlatinum

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 flag
Tuesday, 24 April 2012
R
Ray
10:01 AM
Andover

Dave:

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 flag
Ray's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Dave Lindsay
sentiment_very_satisfiedPlatinum

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 flag
P
PeterC
4:27 PM
Waterlooville

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 flag
PeterC's: mapP's Freeview map terrainP's terrain plot wavesP's frequency data P's Freeview Detailed Coverage
D
Denzil Dexter
5:56 PM
Poole

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,
DD



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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
sentiment_very_satisfiedPlatinum

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 | ukfree.tv - 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 flag
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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.

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