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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Friday, 27 April 2012
D
Den1:34 PM
I cannot receive yesterday now since the change over, i live in Bembridge IOW, can you advise?
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2:46 PM
Portsmouth
on switching tv still getting broken picture and sound for about 15 minutes
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g.baseley's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
Den: Could you get Freeview before switchover?
I see that the Bembridge area is quite well served by the Brading relay transmitter which does not carry the Commercial channels such as Yesterday. I wonder if this is a general indication of difficulty receiving directly from Rowridge in some parts of that area.
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2:51 PM
Portsmouth
sfter switching on tv still getting broken picture and sound for about 15mins every day for at least a month this is anew tv have reprogrammed every day still same problems this tv is only 2 month old?
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g.baseley's: mapG's Freeview map terrainG's terrain plot wavesG's frequency data G's Freeview Detailed Coverage
J
jb386:18 PM
g.baseley: This could be caused by you receiving a signal at a level that's verging on being excessively powerful, so if you use any form of booster then it has to be by-passed, if though you do not use a booster then for a test try using a set top aerial, giving an update on results.
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R
Ray H9:21 PM
I would like to concur with MJ I have lost all freeview hd channels and when I try a manual retune of channel 21 it shows a very low to nothing signal strength and the same again for quality, every other station/channel is fine. Used to have 94 stations now 89. Location Portsmouth
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Nick11:49 PM
What is the reasoning behind this transmitter broadcasting on two polarities? If people have reception problems, can they have two aerials at different polarities to give a super signal?
Is this an experiment, for other transmitters to follow?
What effect would you get putting the aerial on the slant? Best of both worlds?
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Saturday, 28 April 2012
J
jb3812:32 AM
Ray H: If you are referring to Rowridges HD service on channel 21 then as I have also said to g.baseley you will have to try a test by reducing the signal level received as HD will always cut off before SD if the signal received is excessively powerful and giving exactly the type of signal indications as you have mentioned, as the signal blocks the tuner and that why it either indicates low or nothing at all.
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Ray H2:36 PM
jb38 I appreciate your reply and advice, just went to remove amp, checked signal strength and quality on 21 and both on 90% with amp still connected and have retuned all hd, I am now puzzled!
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J
jb385:56 PM
Ray H: Well one very possible reason springs to mind, being that when you had previously made the check the normally occurring variations in signal strength that occurs most of the time dependant on time of day as well as weather conditions, had allowed the signal to be just that tad stronger to the point that it was partially blocking the tuner, whereas when checked the second time it had dropped just enough to allow the tuner to operate as normal, as the difference in levels between these two situations occurring is very small.
This is a peculiar effect associated with digital reception that mystifies many, as if a persons reception is being blocked because of an excessive level of signal and they fit a variable attenuator, its generally always found that if the attenuator is fully in operation (max attenuation) then the signal is OK at maybe about 70 or 80%, but if they slowly advance (kill) the attenuation and observe the signal strength / quality rising until the max indication of 10 (or 100%) and is not stopped at that level, then any further advancing will result in the signal suddenly crashing and accompanied by low strength and zero quality reading being seen again.
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