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, 24 January 2018
R
R Murchie3:17 PM
Eastleigh
StevensOnln1: So who does make decisions on changing frequencies, channels and broadcast power with so little publicity and reference to fee-paying customers? I've had a standard response from Freeview, nothing yet from Arqiva or Digital UK. After some research I've got a group T aerial on order to extend reception up to channel 60.
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R's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
S
StevensOnln15:10 PM
R Murchie: Frequency allocation and power levels are co-ordinated by Ofcom. However it is down to the owner of each multiplex which services are carried on their capacity; i.e. commercial broadcasters enter into contracts with either SDN (COM4) or Arqiva (COM5/6/7/8) to lease capacity on one of these multiplexes for each of their channels. The BBC have leased space on COM7 since it launched in 2014 in order to make BBC Four HD, CBeebies HD and BBC News HD available on Freeview. Now that COM7 and COM8 are about to become single frequency networks (i.e. the same frequencies will be used on each transmitter that carries these muxes) the guard interval on COM7 & COM8 is being changed which will reduce the available capacity on each of these muxes. As this will result in COM7 no longer having enough capacity for all of its current channels, the BBC have agreed to move BBC Four HD and CBeebies HD to COM8 where there is spare capacity available. COM8 is broadcast at a lower power level than COM7 on some transmitters, on others both are broadcast at the same power level and there are a couple of transmitters where COM8 is broadcast at a higher power level than COM7.
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Thursday, 25 January 2018
J
J Whitney12:32 AM
Moving any services to channel 55 seems nonsensical for Rowridge. It has always been a group A transmitter and so surely the vast majority of people will have a group A aerial. So it seems a large number of people will have to pay for a new group T aerial to be fitted if they wish to continue receiving the Com7 and Com8 channels. Rich pickings for aerial fitters and since my aerial is at the top of a 20 ft pole not simple for me and particularly annoying since I frequently watch Ch4+1 HD and 4Seven HD as well as BBC4 HD (but not anymore). What is the point of moving Com7 and Com8 to a single frequency network on channel 55? This seems so unnecessary and costly. Just leave Com 7 where it is and keep its capacity unchanged!!
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S
StevensOnln110:59 AM
J Whitney: It is necessary to move COM7 and COM8 to single frequency networks on UKF channels 55 and 56 because channels 31-37 are needed to relocate other multiplexes which are being cleared from the 700MHz band. There is no option for Ofcom/Arqiva to leave them unchanged on any transmitter as this would cause massive interference to relocated PSB and COM muxes on other transmitters.
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Saturday, 27 January 2018
R
R Murchie8:27 PM
Eastleigh
A new wideband aerial has sorted the loss of stations from Rowridge, BBC Four HD etc all back on screen, so I hope the March 2018 frequency changes will go smoothly. However, I wish some simple advice from BBC, Freeview, or Ofcom along these lines had been available to save this unnecessary confusion.
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R's: mapR's Freeview map terrainR's terrain plot wavesR's frequency data R's Freeview Detailed Coverage
Monday, 5 March 2018
D
Douglas Cheney9:10 AM
would a 30 year old group "A" contract aerial receiver channel 37 from the I.O.W transmitter
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Wednesday, 7 March 2018
R
R Murchie10:41 PM
Mine didn't, so I replaced it with a wide-band group T aerial which brought C37 back. I hope it will also receive C55 and C56 which are due to be used for transmitting COM7 and COM8 from Rowridge on 2 May.
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Thursday, 8 March 2018
MikeP
12:02 PM
12:02 PM
Douglas Cheney:
You would do best to have at least a Group T aerial, but better would be a log-periodic aerial that will receiove all current and expected future transmissions from Rowridge.
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Saturday, 10 March 2018
R
RichardH4:46 PM
Douglas Cheney Probably would but ch. 37 was just outside of group A 30 years ago so you would need a reasonable signal. In addition, Com 8 (which is the multiplex on ch. 37) is broadcast at a lower power level than the other multiplexes (except the local' multiplex) and with horizontal polarisation only.
All this is academic though as Com 8 is being moved to ch. 56 on 21 March and that is way beyond group A!
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Monday, 12 March 2018
can you give any details of the upcoming retunes on March 21st and May 2nd, which channels will change and what will be the new frequencies.
Also will this be a final retune or are we going to face further changes again in the coming future.
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