Full Freeview on the Rowridge (Isle Of Wight, England) transmitter
Brian Butterworth first published this on - UK Free TV
Google Streetview | Google map | Bing map | Google Earth | 50.676,-1.369 or 50°40'35"N 1°22'7"W | PO30 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._______
Digital television services are broadcast on a multiplexes (or Mux) where many stations occupy a single broadcast frequency, as shown below.
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 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.
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?
BBC South Today 1.3m homes 4.9%
from Southampton SO14 7PU, 26km north (354°)
to BBC South region - 39 masts.
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 Docks | Transposer | 2 km N city centre | 50 homes Estimate. Group of houses' |
How will the Rowridge (Isle Of Wight, England) transmission frequencies change over time?
1950s-80s | 1984-97 | 1997-98 | 1998-2012 | 2012-13 | 2 May 2018 | ||||
VHF | A K T | A K T | A K T | A K T | W T | ||||
C3 | BBCtvwaves | ||||||||
C21 | C4waves | C4waves | C4waves | +BBCB | BBCB | ||||
C22 | +ArqA | ArqA | |||||||
C24 | BBC2waves | BBC2waves | BBC2waves | BBCA | BBCA | ||||
C25 | SDN | SDN | |||||||
C27 | ITVwaves | ITVwaves | ITVwaves | D3+4 | D3+4 | ||||
C28 | ArqB | ArqB | |||||||
C29 | LSO | ||||||||
C31 | BBC1waves | BBC1waves | BBC1waves | com7 | |||||
C37 | com8 | ||||||||
C55tv_off | com7tv_off | ||||||||
C56tv_off | COM8tv_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 |
Local transmitter maps
Rowridge Freeview Rowridge DAB Rowridge TV region BBC South Meridian (South Coast micro region)Which companies have run the Channel 3 services in the Rowridge transmitter area
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Wednesday, 9 May 2012
J
jb381:41 PM
Mike: The AFC (automatic frequency control) range in your Sony's tuner should be able to cope with plus or minus offsets on a frequency if its a device that's been manufactured within the last 4 years or so, these plus or minus offsets having been made to keep the correct 8mhz spacing between adjacent channels and to avoid any possibility of interference being caused, and with this not necessarily being caused to another channel within the same station but another station located within RF range, albeit that in Rowridges case the use of Ch22 (COM5/ArqA) necessitated it to also have a positive offset on its frequency.
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D
david cusworth3:21 PM
Channel 30 still off. All other channels OK. Why?
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Thursday, 10 May 2012
If you're using mythtv and find you're missing epg data on some of the channels such as yesterday you'll find you have a missing networkid, full details here
TeccyBlog: MythTV and Rowridge re-tune
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Friday, 18 May 2012
H
Harri Ackone12:13 PM
Shanklin
Hi
Would appreciate very much suggestions/help as to why the following is happening. I have a Sony Bravia with built in Freeview tuner and recently on about 4 channels e.g Sky News and Dave etc and keep being told thet are not tuned. However have 2 Freeview boxes in use in rooms upstairs and no problems at all....I should point out all 3 are using same aerial and it is only a recent problem. Look forward to hearing from anybody [please.
Cheers
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Harri's: mapH's Freeview map terrainH's terrain plot wavesH's frequency data H's Freeview Detailed Coverage
Harri Ackone: The most likely and most ideal solution is probably to switch your aerial from horizontal to vertical.
See the postings here from and in response to Brian Smith:
ITV 3 | ukfree.tv - independent free digital TV advice
As for why one might be unable to cope with the difference in signal levels where others will can, not all are the same. There are differing factors:
1. The sensitivity/tolerance of the components in the tuner.
2. The loss in the cable and connectors from the point that the signals are distributed.
You could try swapping your receivers from different aerial points, as a test. Before you move any, observe the signal strength (where they give such information) and see if the signal is shown as being stronger at another outlet.
If the Sony fairs better in another room, then maybe a bit of attenuation will lower signal levels and provide a more stable result.
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H
Harri Ackone3:00 PM
Shanklin
Hi Dave Lindsay
Thanks for your feedbach it's very much appreciated but I don't think I'll be heading up to my roof to alter my aerial to vertical especially as I get vertigo!!!
This afternoon the missing channels returned a classic case of sods law methinks.
Would also appreciate an explanation in simple terms how one achieves this.."a bit of attenuation will lower signal levels and provide a more stable result"
Regards
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Harri's: mapH's Freeview map terrainH's terrain plot wavesH's frequency data H's Freeview Detailed Coverage
Harri Ackone: I would like to clarify my last sentence of my earlier posting. There is no guarantee that attenuating will work. It is a try it and see sort of thing.
An attenuator reduces signal levels and an amplifier increases them. If you have an amplifier which splits the feed from your aerial to different rooms and it has a variable control on it and it is accessible, then you should try reducing the level of amplification before introducing an attenuator.
An attenuator connects in line with the aerial lead. Variable ones are available for £3 or £4 online from souces such as eBay and Amazon. One such example is here:
1-20dB variable digital tv aerial signal attenuator | eBay
The problem is that the signals that you are having difficulty with are weaker horizontally than the Public Service channels (BBC, ITV1, C4, C5 etc). Vertically they are the same. So you have a marked difference in strength.
Resolution of a picture with digital signals works or it doesn't work. There is a threshold known as the "cliff edge". So a slight change in signal (which happens all the time) has meant that the services are viewable again. Therefore, I wouldn't be surprised if it goes again.
Therefore, for reliable reception you need sufficient signal so that the natural slight changes do not leave you without enough (at some times).
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Saturday, 19 May 2012
S
Sean Marshall9:25 PM
Are we going to have fewer birds around the Solent after everyone's turned their aerials to vertical and they don't have anywhere to sit?
I was thinking of having mine turned just so I don't hear it shaking down the chimney when one of the fat pigeons lands.
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Wednesday, 23 May 2012
R
Richard Hillier8:26 PM
Hi I live on the Isle of Wight and would like to know when we get HD freeview?
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Thursday, 24 May 2012
M
Mark Fletcher1:47 PM
Halifax
Richard Hillier.Somewhere on the I.O.W.
On frequency 21 already,from Rowridge mast !
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Mark's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
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