Freeview Light on the Londonderry (Northern Ireland) transmitter

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2:41 PM

Johnny: It comes back to politicians not mandating licence-holders to broadcast from the relays. They have been allowed to pick and choose what suits them rather than working to provide a (more) universal public service.

seamus o'doherty
2:46 PM

Considering the is the tallest structure in Ireland and covered the whole of N.Ireland I find it amusing that it's referred to as a small site.

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Johnny
3:17 PM
Londonderry

Dave,

Thank you for your speedy reply. I understand the differences between the main and transmitters and plan to rotate the towards at the weekend to see if that improves things. I won't hold my breath however. Its just quite frustrating after waiting so long for freeview, I can't get the full service. Had just assumed till yesterday that all the would be available.

My main confusion was that I was recieving RTE HD and not UK HD but you have cleared that up for me nicely and can only assume my tv does not have a DVB-T2 tuner. As far as I remember (not home at the minute) the model is LG 42LH3000. I plan to buy a recorder soon anyhow so will look to getting a one which should at least get me the HD channels.

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Johnny's: J's Freeview map J's terrain plot J's frequency data J's Freeview Detailed Coverage

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3:19 PM

seamus o'doherty: I did refer to them as "smaller" rather than "small".

Maybe it is your sense of humour...

Anyway, this document lists the number of households expected to use each :

http://consumers.ofcom.or….pdf

I haven't found a way of putting it into a spreadsheet, but having just looked down the list, I think that Derry is the largest to be PSB-only. with 14,000 households is nowhere near coming second.

The sizes (smaller/larger) are a measure of the number of households they serve rather than the length of the !

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3:45 PM

Johnny: Undoubtedly the whole Lite thing must be the biggest let-down.
The page on the LG site about your TV is:
LG 42LH3000 Television - 42" HD Ready 1080p LCD TV - LG Electronics UK
You will, of course, have to switch your to horizontally polarised. For lots of information about aerials, including an online shop, see ATV 's site A.T.V (Aerials And Television) TV Aerial, DAB Aerial, FM Aerial. (It says that there is an additional charge for orders to Northern .)
See this page for suggestions for :
A.T.V (Aerials And Television) TV Aerial, DAB Aerial, FM Aerial. digitalnationwide2.html#L
Derry uses Group B whereas Limavady uses Group C/D ones so you may need to replace the aerial. In any case, you may be looking for something with a higher . However, you might be able to use the current one for purposes with Limavady.
Use manual tuning to select the Limavady channels. Select a UHF channel and wait a moment for the strength and to show (but don't press "Add" just yet). Doing this will allow you to use your TV as a meter.
The objective isn't to see the signal strength at 100%; it is quality that matters.
The six UHF channels from Limavady are:
PSB1 | BBC One |
PSB2 | |
PSB3 | BBC One HD |
COM4 | ITV3 |
COM5 | Pick TV |
COM6 | Film4 |
In order to receive RT you will need a separate aerial. I guess that you may have one now and that it is pointing to which is just over the border and not far from Sheriff Mountain. Unfortunately Holywell Hill is horizontally polarised and Sheriff Mountain is vertically polarised else you may have got away with a single aerial for both (as they are on bearings only 14 degrees apart from your location).
If you have combined the two aerials into one downlead (so as to feed it into the same without having to swap aerial leads) then this should still work for Holywell Hill and Limavady.

Johnny
4:41 PM
Londonderry

Dave,

Thanks again. Thats alot of information to get my head around but it will be a great and will have to look into it over the weekend.

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Johnny's: J's Freeview map J's terrain plot J's frequency data J's Freeview Detailed Coverage

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5:08 PM

Johnny: The only other thing I will say is that the UK Postcode Checker "thinks" that COM4 and COM5 are "poor" at your postcode whereas COM6 is "good". The figures that it calculates are the percentage of the area of the postcode that are "served" and "marginal". It should be taken with a pinch of salt as such predictors can never be entirely accurate.

The reason I raise this is because I have been wondering why the marked difference between COM6 and COMs 4 and 5. Unfortunately it doesn't let on why it has calculatated it like this!

In some cases one can make a guess that the likely reason is due to a particular that uses the same . This transmitter, the predictor "thinks", may act to degrade . But as reception is not an exact science, so too is from unwanted signals.

The only thing I can think is that the calculation has taken into account a former transmitter in the Republic. Interestingly those which used 54 and 58 used 64 as well (but not 49). So I think that this is probably nothing to be concerned about.

pat
6:01 PM
Londonderry

At the end of the day no mater what you say or what way you put , DERRY was short changed.

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pat's: P's Freeview map P's terrain plot P's frequency data P's Freeview Detailed Coverage

seamus o'doherty
8:09 PM
Strabane

is to serve a population of 80,000 yet Derry alone has more people than that residing there.
Something just doesn't add up here.

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Briantist

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8:53 PM

seamus o'doherty: The "Full " transmitters usually serve populations in the millions:

serves about 10673000 people
serves about 6394000 people
serves about 4445000 people
serves about 3684000 people
serves about 2234000 people
serves about 2187000 people
serves about 1830000 people
serves about 1711000 people
serves about 1688000 people
serves about 1664000 people
serves about 1474000 people
serves about 1355000 people
serves about 1117000 people
serves about 1046000 people
serves about 1046000 people
serves about 1022000 people

Then less than a million people...

serves about 975000 people
serves about 856000 people
serves about 784000 people
serves about 666000 people
serves about 642000 people
serves about 475000 people
serves about 452000 people
serves about 428000 people
serves about 428000 people
serves about 404000 people
serves about 357000 people
serves about 309000 people
serves about 309000 people
serves about 285000 people
serves about 285000 people
serves about 285000 people
serves about 285000 people
serves about 231000 people
serves about 228000 people
Moel-Y-Parc serves about 226000 people
serves about 223000 people
serves about 200000 people
serves about 197000 people
serves about 176000 people
serves about 176000 people
serves about 171000 people
serves about 166000 people
serves about 150000 people
serves about 138000 people
serves about 135000 people
serves about 126000 people
serves about 124000 people
serves about 114000 people
serves about 107000 people
serves about 107000 people
serves about 107000 people
serves about 105000 people

And a very few serve less than 100,000 people...

serves about 97000 people
serves about 90000 people
serves about 88000 people
serves about 86000 people
serves about 83000 people
serves about 81000 people
serves about 81000 people

--- 80,000 is here ---

serves about 74000 people
serves about 74000 people
serves about 71000 people
serves about 71000 people
serves about 69000 people
serves about 59000 people
serves about 59000 people
serves about 57000 people
serves about 50000 people
serves about 50000 people
serves about 45000 people
serves about 43000 people
serves about 43000 people
serves about 43000 people
serves about 40000 people
serves about 26000 people
serves about 24000 people
serves about 22000 people
serves about 13000 people
serves about 7000 people