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.
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, 4 July 2012
Can anyone tell me whether it would be possible to broadcast a digital TV channel from the satellite or repeater station on St Boniface Down, Ventnor, Isle of Wight? OFCOM is a bit vague on this.
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Wednesday, 18 July 2012
T
Taras1:39 AM
Hi,
I've lost the COM6 mux completely, I'm in the bh23 area.
itv4 seemed to be choppy and in the last week or so it went completely.
Is it worth doing a swap from horizontal polarization to vertical ?
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Friday, 20 July 2012
K
Keith5:09 PM
Worthing
I live in BN12 6QA with a roof top aerial pointing to Rowridge. I am experiencing occasional picture break up of varying severity on sky sports and other commercial channels through my BT Vision box. I was wondering if I should switch the aerial to vertical polarization or would this cause other problems with interference from France, or possibly the Midhurst Transmitter ? Many Thanks.
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Keith's: mapK's Freeview map terrainK's terrain plot wavesK's frequency data K's Freeview Detailed Coverage
Sunday, 22 July 2012
KEITH--------------
If you have a red tipped aerial which is grouped for rowridge, then you should not be getting interference from midhurst, only if you have a black tipped aerial which is wideband, would you receive interference from other transmitters.
Changing to VP for the aerial could cure your problems, however this is not always the case, although you need enough power for the signal to work correctly, you also need the quality of that signal to be good.
As an aerial installer I usually fit aerials now on VP, but have found the odd job that requires HP install.
So I would say give it a try and see if it helps.
information provided by JAYS CABLING SERVICES
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Jamie's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
J
jb387:18 PM
Keith: If your aerial is still mounted horizontally then please note that the commercials only transmit on 50Kw on that mode whereas the vertically polarised transmissions are radiating on 200Kw.
By the way Midhurst cannot cause interference to signals from Rowridge as the latter spans channels from 21 - 28 whereas in the case of Midhurst its 50 - 62, and so if you do get interference at any time it has to be from somewhere else or possibly even from continental stations, your reception of commercials being much more susceptible to being interfered with as you are predicted as only being able to receive them with the status of variable even although they are radiating on 200Kw.
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B
Barry Quinn10:57 PM
I have lost many of my Freeview channels from the Rowridge transmitter. All seemed to be ok till late last night 21 July..
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Monday, 23 July 2012
BARRY-
what is your postcode and do you know if your existing aerial is running through an amplifier or splitter?
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jamie's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Tuesday, 24 July 2012
T
Trevor Rhodes4:49 PM
Poole
We are at BH13 7NH (Canford Cliffs), and receive our Freeview signal from Rowridge. We have a modern digital aerial professionally installed about 3 years ago. We have not needed to adjust it during or after the change over procedure.
However in the last week (approx since 19 July 2012) we have started to have problems receiving Sky News (82). It often breaks up and is sometimes no longer found when we do a retune.
So we have looked at signal quality for each of the 100+ channels using the facility on our Panasonic TX-P42G20B TV. We find that signal quality is perfectly fine (100%) for all channels except for the following 20 which are all about 30% - 40% quality level:
11
19
20
25
29
36
37
43
46
49
62
82
87
90
84
96
97
98
108
193
Do you suggest we have the aerial realigned towards the Poole transmitter, or is there a simpler method?
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Trevor's: mapT's Freeview map terrainT's terrain plot wavesT's frequency data T's Freeview Detailed Coverage
TREVOR RHODES
Hi, your poor signal seems to be on the commercial muxes.
The best thing to try first is to have the aerial tilted so that the elements are vertical as apposed to horizontal.
The reason for this is that they signal strength is stronger on VP setting rather than on HP setting.
The fact that all has been fine up until recently could also indicate that maybe something is being built in your signal path, causing your weak signal.
I would try altering the aerial first then go from there.
Information provided by
Jays Cabling Services
Digital Approved Installer
www.jayscabling.co.uk
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jamie's: mapJ's Freeview map terrainJ's terrain plot wavesJ's frequency data J's Freeview Detailed Coverage
Trevor Rhodes: Short answer: Have your aerial changed from horizontal to vertical.
Long answer: The Poole relay does not carry the Commercial (COM) multiplexes; only the Public Service Broadcaster (PSB) ones, so you would be worse off. Indeed, it is COM5 you are having issues with, and you may be susceptible to poor reception of COM4 and COM6 as well due to the clash with Stockland Hill.
For services and which multiplex they are carried on, see:
DTG :: DTT Services by Multiplex
After switchover, digital signals from Rowridge are broadcast horizontally and vertically. The horizontal signals are there there for compatibility with existing aerials.
The PSBs (BBC, ITV1, ITV2, C4 etc) are at a power of 200kW horizontally and vertically, whereas the COMs are 50kW horizontally and 200kW vertically. The COMs are lower power horizontally because the three channels (frequencies) so that they can be used by other transmitters (in closer proximity than what the PSBs' channels are re-used).
In your case, you could be suffering from interference from Stockland Hill as its COMs use the same three channels. It is horizontally polarised only, so changing your aerial to vertical polarisation should help "rejection" of the unwanted signals.
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