Full Freeview on the Rowridge (Isle Of Wight, England) transmitter
 | 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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Tuesday, 6 November 2012
M
Mike Wells4:46 PM
Sturminster Newton
To clarify I am thinking of changing the Mendip aerial to point at Rowridge with vertical polarisation thus giving two aerials poiting at the same transmitter with one in vertical plane and one in horizontal plane. I want to maintain reception from Rowridge as that gives us the local news (BBC South) that interests us.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Mike Wells: As I have explained, the main thing it would depend on is if the Mendip aerial a Group C/D one. If it is then it isn't really suited to a Group A transmitter, which Rowridge is.
You cannot really use two aerials simulataneously, one horizontally and one vertically so I don't understand what you are thinking that will be gained.
There is an element of doubt as to whether you will be able to receive the COM channels from Rowridge, even with the aerial vertically orientated. This would tend to suggest that your chances of success might not be great and hence you need to use a Group A aerial for all the gain you can get.
If it proves that you can't receive the Rowridge COMs, then you need a diplexer to combine the Mendip aerial with the Rowridge one to give you Mendip's COMs and Rowridge's PSBs.
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MIKE WELLS
It doesnt matter if the aerial is HP or VP you will receive exactly the same channels....
you cannot have 2 aerials on the same transmitter combined into 1 receiver.
If for some strange reason you wish to use both HP and VP you will need to run seperate cables to seperate receivers.....
BUT as I say there is nothing to gain from this as you will have exactly the same channels.
regards
Jamie.
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Jamie's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Wednesday, 7 November 2012
M
Mike Wells11:35 AM
Sturminster Newton
Thanks for help which has clarified position, looks like I need to sort out good group A aerial VP or go down freesat route.
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Mike's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 21 December 2012
A
adrian_tcp11:39 PM
Fordingbridge
Hi,
I am in SP6 2JX on the edge of the New Forest. I have just fitted a second roof mounted Group A aerial for a new extension. I am pointing to Rowridge but an only receive a pixilated image for PSB2, PSB3 and COM6 channels. The aerial is horizontally polarised but I am receiving good COM4 and COM5 pictures. I am boosting the signal and getting nearly 70db micro v, yet the original aerial with the same booster provides a strong 80db micro v. Should I look at increased boost or a class 1 aerial? Does aerial vertical inclination impact reception or should they always be horizontal? Should brown coax be acceptable? Sorry, just a little frustrated that the old analogue aerial with old coax is better than the new gear. Thanks. Adrian.
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adrian_tcp's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
A
adrian_tcp11:56 PM
Fordingbridge
Also, when you say vertical aerial polarisation, do you simply mean that you turn the aerial through 90 degrees so that the aerial prongs point up and down? This would also mean that all other parts of the aerial assembly would be turned through 90.
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adrian_tcp's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
Saturday, 22 December 2012
K
KMJ,Derby9:59 AM
adrian_tcp: Yes, the prongs (directors), the dipole (where the coax is connected) and the reflector (the plate or set of rods at the back end) are all vertical. The boom of the aerial should be horizontal or have a very slight tilt up towards the transmitter.
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J
jb3810:18 AM
adrian_tcp: As far as the aerial mounting is concerned its a case of the entire aerial being in effect being turned on its side, because the vertically polarised COM signals from Rowridge radiate on 200Kw whereas on horizontal its only 50Kw, however the fact of you having said that you suffer from pixilation on the PSB2 & PSB3 muxes does not give much hope as far as glitch free reception is concerned, but though it depends on what you observe on a signal quality check, because if both the strength and quality are seen to fluctuate within a certain range but never at any time rapidly dip to near zero and back again, then keeping the signal running at a high level can in many cases help to keep pixilation to a minimum, but if the quality is seen to frequently dive to zero and back then no matter how fast it does it the picture will suffer.
The problem is, that when that sort of thing occurs there is virtually nothing that can be done at the receiving end that will help the situation as the problem is outwith local control, as its basically caused by the signal path from the transmitter to the receiver being affected by obstructions along the way, and with the most commonly experienced reason being trees and such likes even if they have shed their leaves, and with quick check over the signal path between Rowridge and your area indicating quite a number of hazardous areas for RF signals.
However, I suggest that you carry out the check referred to, that is on the assumption that your TV or box does offer both a strength and quality indicator and giving an update on the results of the check.
By the way if the brown coax referred to is of the thinner variety then it should be changed to a satellite grade such as WF100, but if its the thicker variety with a woven copper mesh that does not separate easily then its most likely perfectly OK.
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Sunday, 23 December 2012
A
adrian_tcp3:10 PM
Fordingbridge
Thanks. I only have strength, not quality. However, on Film4 which is one of the worst, signal strength is 68-72 but Bit error level is max at 2000, whatever that means. ITV2+1 is 58-62 but no but errors and not pixilated, so is there anyway of reducing the bit errors, like having 2 amplifiers in series?
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adrian_tcp's: mapA's Freeview map terrainA's terrain plot wavesA's frequency data A's Freeview Detailed Coverage
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