Full Freeview on the Rowridge (Isle Of Wight, England) transmitter
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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 29/04/2024 Screen may go black on some or all channels 
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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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Monday, 9 April 2012
D
Derek Green6:15 PM
Poole
Kim V,
You could try vertical polarisation of your aerial after the April 18 re-tune. This will involve getting your aerial elements rotated through 90 degrees. Before April 18 only a batch of the main BBC, ITV, Channel 4, Five etc channels, in three "multiplexes" but not the additional "minor" commercial channels, are being broadcast at 200kW on vertical polarisation. The remaining 3 multiplexes are still at a mere 20kW and horizontal polarisation only, but on April 18 they too will begin to be transmitted on vertical polarisation and at a massively increased 200kW too. With another re-tune and rotating your aerial, you should get all your missing channels back then and be less prone to co-channel interference from French stations.
Failing that, why not get a professional TV or aerial repair person in to sort you out, especially if you cannot sort it out yourself?
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Derek's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
Tuesday, 10 April 2012
S
Solent-Viewer8:01 AM
Vertical polarisation has its problems too!
Bear in mind that a vertically polarised aerial will be more susceptible to picking up off beam transmissions (the main cause of co-channel interference) because to a certain extent, to those broadcasts from the side the antenna is effectively an efficient vertical dipole.
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ROWRIDGE transmitter - Over the next week Rowridge main transmitter: TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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ROWRIDGE transmitter - Over the next week Rowridge main transmitter: TV (digital) working normally, Radio (analogue) working normally, Radio (digital) working normally. [DUK]
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D
Derek Green11:54 AM
Poole
Solent-viewer,
Umm, I agree that's "sort of true". In a multi-element aerial side transmission reception is minimised by the director and reflector elements (over and above the main dipole element) whichever polarisation you choose. The horizontal wins which is why so many of our UK transmitters use horizontal to minimise side pick-up as we are such a small country. However, as we all know, mid-Southern England have particular problems with weather conditions and Northern France transmissions.
In essence, you have a choice of horizontal - with vertical reflections from layers in the atmosphere/troposphere, or vertical - with unwanted transmissions directly from the sides.
The advantage with the final state of Rowridge, post April 18, is that for the three "minor" commercial multiplexes the vertical transmission is 200kW, whereas the horizontal transmissions will be 50kW. On these multiplexes, this extra power in vertical polarisation must be better in our area! The engineers would not have designed it this way unless there is good reason.
For the other 3 "main" multiplexes they will have 200kW both vertically and horizontally, so it will make little difference which you choose.
And of course that at each unique location will need to try horizontal or vertical after April 18. If the aerial fittings allow, it might be that some might benefit from 45 degree or other polarisation somewhere between full vertical or horizontal polarisation? Just like the "mixed" polarisation for car aerial reception.
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Derek's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
D
David Brinkman4:26 PM
Poole
I have copied this from another thread as I think this might be a better place to ask the question.
I live in Poole For the last 8 years I have been receiving a good Freeview signal from Rowbridge although technically just outside the area.
Since the switchover I can now only received the ITV channels on channel 37 and no reception from channels 21,24,30, 33 37.
I have a sony KDL-26U3000 a Panasonic TX-L37G20B (I know I've also got freesat) and a Panasonic Freeview HD recorder.
Both TV's are on separate aerials both in the roofspace.
Any help or assistance gratefully received, Digital UK have been hopeless and the BBC not much better.
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
David Brinkman: Does your Panasonic Freeview HD recorder receive all the channels?
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D
David Brinkman5:34 PM
Poole
No,
I get exactly the same channels on all my equipment.
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David's: mapD's Freeview map terrainD's terrain plot wavesD's frequency data D's Freeview Detailed Coverage
J
jb388:10 PM
David Brinkman: Just to exclude something, I would like you to go into the "manual" tuning menu screen on your G20 (and only on) and using the up/down arrows on the large centre button select Rowridges BBC on Ch24, if nothing is shown on the strength / quality bars then "slowly" proceed to pull the aerial plug out "whilst observing the screen", as I would like you to note if when the plug is just about clear of the socket (and no more!) if the strength / quality bars start indicating.
Matter of fact if you slightly offset the plug alignment with the socket so that its touching the socket off centre that's about the correct position for this test.
If though nothing changes, then reinsert the aerial plug and inch the channel up to Ch57 and see if Poole's BBC1 comes in, another channel to test being Mendips BBC on Ch61, giving an update on results.
You will probably already know this, but there is no need to scan anything on the Panasonic because as you inch up the channels it acts like a super sensitive signal sniffer, as the tuner is excellent on that model.
Although it has to be said that you must be in a somewhat better location for reception than the predictor would suggest if pre-DSO1 you were able to receive a reasonably good signal, as you are presently forecast as only being able to have variable reception from the high powered ("H" polarity) PSB muxes and nothing at all from the commercials, although Rowridges "V" polarity PSB's are indicated in the green.
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K
Kim V 9:36 PM
Kim V : It seems there is no straightforward solution. The thing that bothers me and doesn't make much sense is that the TV receives the same channels as the toputv box (in theory), the TV is fine but the box is unwatchable and they share the same roof aerial. I am not receiving downloads and can't record since switchover. Before the switchover the situation was reversed, the box received better than tv. Somehow I suspect a software issue, but topuptv is useless. I was wondering if another box would work better.
(50.6760,-2.2298)
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