Full Freeview on the Sudbury (Suffolk, England) transmitter

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2:16 PM

Nick: has had to wait for to switch-over so as to throw free the three final COMs . A few other transmitters have had to go through similar "temporary" stages, although at a year, this is one of the longer ones.

See the DMOL link I provided as it lists by which are identified as either "PSB" or "COM".

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2:23 PM

Nick: For , a Group E is semi- as it spans Group B and Group C/D .

The other alternative is to use a Group C/D aerial for the COMs and diplex it with a Group B for the PSBs. Or the wideband may be suitable for the PSBs with it being diplexed with a C/D to pick up the COMs.

For diplexers, see Online TV Splitters, Amps & Diplexers sales

The one that "splits" at should be suitable if the two-aerial approach is to be employed.

As I say, I'm not a professional so I don't know under what circumstances that may be better than a single Group E aerial.

Clearly the diplexer acts as a filter so on the COMs channels only the C/D aerial is used, and on the lower PSB channels only the other aerial is used.

See also:

Sudbury Transmitter

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Mike Dimmick

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2:55 PM

Nick: For the BBC, it is the list of UK Public defined in the BBC's Agreement BBC - BBC Trust - Charter and Agreement , with any changes made by the BBC Trust since that was last revised. Basically, anything with 'BBC' in the name, plus CBeebies. On top of that you have the Qualifying Services: ITV1/STV/, /S4C, Channel 5, and the public service teletext provider (position vacant). That's it.

The +1 services are not counted as Qualifying Services, they are licensed as general TV services.

Mike Dimmick's 2,486 posts GB flag

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2:58 PM

Nick: I used Megalithia to plot the terrain between Hollesley and and I reckon that you may have line of sight at 66 miles.

I am not so sure that the same is true of the location which is further north and closer to .

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Robert B
4:12 PM

Dave, thank you for explaining that 47 is the HD . I currently haven't got an HD tuner. I'm considering updating my equipment and think it would be better to switch to as there are more stations available and should I move into a poor area or one with just PSB coverage I'd be ok. I also believe that Freeview capacity is limited and that little expansion is possbile and it will limit the number of stations able to transmit HD over Freeview.

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Nick

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5:46 PM
Aldeburgh

Thanks, Dave, yes, too far from . Might try Tac if Sud misbehaves.
Guess you don't know what constitutes a psb .
Can you tell me what happens if, say, the ITV on channel 23 and 41 are different regions? If the box tunes to both, can I see both and where would I view the second one, channel-wise?

Nick's 433 posts GB flag

Nick's: N's Freeview map N's terrain plot N's frequency data N's Freeview Detailed Coverage

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6:57 PM

Nick: For which are PSB (and which are COM), see the "DMOL" link I provided in my posting at 1:48PM.

Also see this page, particularly starting at the heading "Independent Television Commission: 1, 2, A, B, C and D":

Why do the six Freeview "multiplexes" have twenty different names? | ukfree.tv - independent free digital TV advice

For more general information on what Public Service Broadcasting is, type into a search engine something like {uk public service broadcasting}.

Basically, as explained in the link above, BBC, Channel 3 (branded "ITV1" by ITV Plc in England), and Channel 5 are Public Service Broadcasters and as such have obligations placed upon them. This includes achieving a particular level of coverage and which means the installations of small transmitters in populated areas that aren't otherwise served.

The PSB1 is for exclusive use of the BBC. PSB2 is licensed to D3&4 which is collectively owned by Channel 3 licencees and Channel 4. This multiplex must carry ITV1 (or STV in parts of Scotland and in Northern ), Channel 4 and Channel 5. The Public Service broadcasters can decide which other of their sister they wish to carry on their PSB multiplexes.

You're now going to ask, why have they included ITV1+1 on PSB2 instead of ITV3? I imagine that the answer is down to the return they expect from the advertisers. Presumably providing an ITV1 one hour behind is seen as being more lucrative than ITV3. So it is all down to money and only ITV1, Channel 4 and Channel 5 must be carried on PSB2.

PSB3 is the only HD one, and whilst licensed to the BBC also carries HD services on behalf of ITV1 and Channel 4.

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I am not sure that 23 and 41 are classed as different "networks" or "regions".

Aldeburgh is a relay of . According to this site, both Tacolneston and Sudbury carry and ITV Anglia East. I would be interested to know whether, as far as the is concerned that these are the same /.

is the third Anglia and it carries "ITV Anglia ". So there appear to be two variants of ITV Anglia; "East" broadcasts from Tacolneston and Sudbury and "West" comes from Sandy Heath. Do you know different?

I receive from , but I'm in a location where I can usually pick up up off the back of the aerial.

Emley Moor and Belmont are part of different BBC and ITV1 sub-regions. When I run the automatic tuning function on my Sony RDR-HXD870 is removes 80-odd duplicates once it completes. This leaves me with all services from Emley Moor plus the BBC One and ITV1 from Belmont. So I end up with two BBC Ones and two ITV1s but not two of everything else.

On another TV, I have all the duplicates, with the highest logical channel number (LCN) being 937! So it would appear that how it works depends on the design of the set.

Freeview TVs usually store duplicates starting at LCN 800.

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Nick

_{sentiment_satisfied}Gold

7:24 PM
Aldeburgh

Thanks again, Dave. I only go up to 300 odd, and they are blank. Yes, Sud and Alde are the same , I was just wondering if I opted for , which seems crazy, if I could get Anglia from also, as Aldeburgh comes in with a bit of damp string, no need for separate . In any case, diplexing aerials leads to loss of on both.
Yes, Sandy is Anglia , all others mentioned, East.
Thanks also to Mike.

Nick's 433 posts GB flag

Nick's: N's Freeview map N's terrain plot N's frequency data N's Freeview Detailed Coverage

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Mark Fletcher

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1:59 PM
Halifax

Nick..As i mentioned in an earlier text to you on Monday 2 July 2012,12.44am,if you decide to opt for go for it.
A good semi- group E (brown tipped) X-Beam XB16E aerial plus copper-copper black coloured co-ax and brass co-ax plug will be sufficient for Dover transmissions.
Or if you prefer Aldeburgh then a group A aerial (red tipped) will do.

Mark Fletcher's 673 posts GB flag

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Nick

_{sentiment_satisfied}Gold

4:00 PM
Aldeburgh

Thanks Mark,
I will give a few days and see if it settles down, otherwise I think is worth a try. I understand since going it has a higher and coverage, is no good, not even got ITV 3.