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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Thursday, 11 May 2017
MikeP
8:45 AM
Trowbridge
8:45 AM
Trowbridge
R Murchie:
The BBC does not decide on the transmitter power for any of the services. That is agreed between the transmitter operator (arqiva) and Ofcom and has to be within agreed international parameters.
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MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
A
alfonso9:18 AM
MikeP: You think BBC don't choose to put BBC Four HD on Com7?
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alfonso: i think BBC4 HD went where it could go, at least at the moment. Relatively ow power is just one of those things.
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A
alfonso11:08 AM
MikeB: They saw fit to put it on BBC B during the Olympics and the capacity remains.
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S
StevensOnln111:16 AM
R Murchie: The capacity used for BBC4 HD on PSB3/BBCB during the Olympics was only available due to CBBC HD being temporarily moved to COM7 (BBC4 HD and CBBC HD effectively switched places). As CBBC HD is broadcast until 9pm each evening and BBC4 HD starts at 7pm they are unable to share capacity on PSB3 and there isn't enough spare capacity for another HD channel on PSB3 unless picture quality is reduced on the existing channels. This is why the BBC are using commercial capacity on COM7 for CBeebies HD, BBC4 HD and BBC News HD.
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A
alfonso11:33 AM
StevensOnln1: That's as maybe. Am I mistaken in that BBC are offering capacity for sale on BBC B?
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StevensOnln14:10 PM
alfonso: The capacity that was offered for sale is the post 9pm capacity shared with CBBC HD (formerly used by BBC3 HD). Whatever way you try to look at it there simply isn't capacity available for BBC4 HD on PSB3, otherwise the BBC would have used it for BBC4 HD/CBeebies HD rather than paying for commercial capacity on COM7. To put it another was, if COM7/8 didn't exist we would not have BBC4 HD on Freeview at all.
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Friday, 12 May 2017
MikeP
8:56 AM
Trowbridge
8:56 AM
Trowbridge
Alphonso:
The original question I answered was about the power of COM7. The BBC do not decide what the power output of any transmitter is, as stated earlier that is a matter for Arqiva, Ofcom and international agreements. Others here, MikeB and StevensOnln1 have explained the history of why BBC4 is on COM7. If there was available capacity on PSB3 then it is likely that BBC would use it for BBC4 but there is no spare capacity between 7 PM and midnight (or later) so they cannot provide the service they desire via that multiplex. Hence having to pay for use of COM7.
Note that COM7 and COM8 are due to cease in the next round of service allocations.
link to this comment |
MikeP's: mapM's Freeview map terrainM's terrain plot wavesM's frequency data M's Freeview Detailed Coverage
Friday, 19 May 2017
T
Tony Hill4:23 PM
My recommendation for all the Com7/BBC4 HD problems is to use Freesat - as I mainly do.
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Sunday, 18 June 2017
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