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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Monday, 9 June 2014
C
colin1951uk3:58 PM
Eastleigh
Could one of our aerial installer friends advise me on a couple of points please.
A) I've had a leaflet through the the door today about 4G starting in my area (from you know who) but I was always under the impression that the Rowridge transmitter was immune from 4G transmissions because its channels are well away from the spectrum used by 4G. Am I a bit naive in thinking this and any idea how close you have to be to a 4G mast to expect any problems?
B) I had to have a new aerial/cable installation done a month ago come this Friday due to water ingression and everything has been fine until this past week when I've started noticing what I would call a 'shadow' effect (not proper ghosting) to the right of word banners (for instance rolling film credits are a good example) and people if there is a crowd on the screen (I've noticed it in particular when watching football as the players look to have little shadows chasing them.) I can't believe the new aerial is at fault here and wondered what causes this effect (Googling hasn't made me any the wiser.) Can anyone help me isolate and fix this effect please?
Thanks...Colin
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colin1951uk's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
colin1951uk:
hi, I am a local RDI approved aerial installer
in response to A - you are correct in saying Rowridge transmits at lower levels away from 4G, however there may be parts of your system that are prone to receiving 4G such as a wideband aerial receiving 21-68 (which you shouldn't have as its new) and also an amplifier receiving 21-68, which again you shouldn't have, if you have an amplifier it should either be 4G protected but if you do have an older one which can receive 21-68 then your recent installer should have fitted a 4G filter in preparation for protection.
in response to B - from your description this sounds like an issue with the tv set itself
regards
Jamie stevens
Jays Cabling Services
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Tuesday, 10 June 2014
J
jb3812:06 AM
colin1951uk: In addition to jamie's reply, in areas where DTT reception is liable to be affected by 4G transmissions the reason for is simply down to the powerful (usually) RF signal transmitted by the latter swamping the TV's (or boxes) tuners input circuitry thereby desensitising it to the reception of DTT signals.
As 4G transmissions take place above C60 then the tuner swamping effect of diminishes in a downwards pattern from that channel, and as Rowridges channel span ranges from C21 - C31 then its highly unlikely to be affected "unless" the 4G transmitter is located within say 750ft or so of the receiving aerial, or at a slightly greater distance if its located directly in line with the signal path from the Rowridge transmitter.
Of course the other factor which does play a role in whether or not reception is affected by 4G is the strength of the signal being received from the Rowridge transmitters, because if the signal is inclined to be a little on the low side then the effect of 4G will be much greater, likewise less on strong signals.
I would advise you to leave things as they are for the time being as the 4G issue is somewhat over hyped, likewise you may find that your reception has not really changed after the 4G transmitter comes into service, however it would be prudent to try and find out where the 4G transmitter is located relative to that of your location.
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A
Alan12:59 AM
I have SEVERE issues recently with some freeview channels, notibly Sky news. At the moment I have NO signal, whereas I used to receive this without problem. I live in Dorset, not far out of Poole. Could this be a 4G issue and, if so, what do I need to do to overcome the issue? Who do I contact? ALL HELP GRATEFULLY APPRECIATED..... PLEASE!
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M
MikeB8:30 PM
Alan: It would really help if you could post a postcode, since it will show which transmitters you might be using.
Rather than 'no signal', are you just not picking up Sky News? If your not, it could be that your tuned into a local 'light' transmitter, which doesn't carry it, rather than Rowridge.
4G problems are actually really rare, so it highly unlikely, but it could be a problem with your aerial lead - so check your system for any breaks, etc, to make sure your signal is consistant across the full range.
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Wednesday, 11 June 2014
N
Nick Taylor5:11 PM
Many thanks JB for your help (last month, sorry for delay!). Managed to get Channel 5 by realigning aerial slightly and a reset of hard drive tuner.
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J
jb388:46 PM
Nick Taylor: Thanks for the update! pleased to see that you have succeeded in rectifying the problem, as on browsing through a few of the more recent replies made I was rather curious as to the outcome of the advice given.
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Thursday, 12 June 2014
C
colin1951uk1:22 AM
Eastleigh
Thanks to jamie stevens and jb38 for their comments on 4G
The nearest transmitter to me is about about four city blocks away high up on a multi-storey car park. Its transmissions will hit my aerial from behind if that makes any difference.
I don't have any amplifications and my new aerial is a Yagi 18A (the old one was a standard Group A job which I think was better but time may well change my opinion of the Yagi.) I opted to stay with HP rather than VP because I get very good reception of the local tv signal (which at 10kw is very low) and I enjoy POP very much!! although I know it will disappear eventually. But I can always go VP should I ever need to.
Anyway I'll wait and see what 4G brings...I understand from my local Orange shop manager that it should come alive in about two weeks time (the nice man is going to alert me by email once its operating so I'll know what to look for come the day.)
As for the shadow problem I'm experiencing I didn't have it with my Group A aerial and it seems to have appeared overnight sort of thing so I'm wondering if some sort of obstruction (maybe a crane or the like) has gone up in between my aerials line of site to the transmitter and I'm getting some sort of reflection off of it. Would that sort of scenario make any sense?? I certainly don't think it's my tv as I have a 32inch Sony Trinitron crt type set and I'm pretty sure crt's don't suffer from shadows and ghosting like some of the the modern sets can. I've also tried another set top box with no improvement so I can rule that possibility out as well. Anyway I'll have to put up with it and just hope it disappears as quickly as it appeared. If necessary I can always get the Yagi double checked out as it came with a years guarantee on the works so there is that to fall back on if the problem doesn't go away.
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colin1951uk's: mapC's Freeview map terrainC's terrain plot wavesC's frequency data C's Freeview Detailed Coverage
J
jb384:35 PM
colin1951uk: Signal strength indications taken from rear pick up can on some aerials not be that terribly far removed from the levels obtained from the front, likewise going by what you have mentioned with regards to the location of the 4G transmitter to that of your aerial does place you at a slight disadvantage to others in your area but who are located a different angle to yourself, whereby the 4G transmitters signal would be striking their aerial from the sides, albeit of course possibly still not at the ultimate angle for minimum pick up, namely 90 degrees. However, the fact of you having a group "A" aerial does up to a point give an element of protection to your reception due to the efficiency of the aerial tapering off from C37 upwards, therefore if by any remote chance you did suffer from the desensitizing effect of 4G then the addition of a 4G filter in line with your boxes aerial input is almost guaranteed to eliminate the problem. As far as the 4G service is concerned, if its expected to be up and running in another two weeks or so then the chances are that the transmitter "might" already be in operation for test purposes, but though irrespective of whether it is or not you should carry out a signal strength on the following channels, keeping a note of the readings obtained to use for reference purposes against a second test taken "after" its known that the service has officially started. Of course, the purpose of this test is purely to find out if your tuner is being affected in any way from the effects of the 4G signal should nothing have apparently changed by the time you are notified, because if the tuner is being affected the indications previously taken will all have dropped slightly. Test channels being / C24 (BBC1) @ 200Kw / C25 (ITV3) @ 50Kw / and either C31 (24Kw) or C29 (10Kw) making a note of the readings obtained. As far as your TV is concerned, I have to agree with Jamie insomuch that its most likely to be the TV at fault, basically because digital reception does not suffer from ghosting, this effect purely being associated with analogue TV reception due to such as signal refection from hills etc, although another thing that can result in a form of ghosting (or ringing) is "if" the analogue signal being fed into the TV's scart socket is a little on the high side whereby is overloading the signal processing circuitry. If possible, you should try and check your system out on another TV, secondly is your TV coupled into your Freeview box using comp video (CVBS) or are you using RGB? the latter being better by far!
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M
MikeB5:11 PM
Colin1951uk: Following on from JB38's point about how your signal comes into the TV, can I assume you have a digibox feeding into the CRT? If so, how is it fed? I'm guessing that its via scart, but are you also using something else, like a scart switchbox?
I know that I get interference from power cables with my scart from the switchbox (which is a bit dicey to change), so it could be the setup in the back of the TV, including a loose connection, etc. Just check that everything is tight, shielded, and away from power cables, etc - it might help.
Of course your TV is now at least 8 years old, so it might be the TV itself - you could check by using the same input lead you use for the digibox to feed something else, say a dvd player. Since you's tried another digibox, its more likely to be the cable or the TV, so at least try another cable. If its still doing it, then at least you've ticked a couple of things off the list.
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