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DAB in Ireland: RTE multiplex closed

1356747

Comments

  • Registered Users, Registered Users 2 Posts: 1,045 ✭✭✭deaglan169


    thanks for your help hopefully ofcom will pass that and we will see more stations hopefully in the new year


  • Registered Users, Registered Users 2 Posts: 2,330 ✭✭✭Antenna


    Cable? It dependson the infastructure of the network. Hearing stories of the NTL network in Dublin, don't be surprised to hear of any tales of interference :rolleyes:

    If subscribers are using poor quality cable (bad shielding), and poor quality splitters instead of proper metal ones there could well be problems.
    Many coax plugs are badly made up by DIYers with outer having poor contact etc. This will let interference in.

    I remember reading cable interference did indeed happen to many people when DAB was being tested in the Netherlands, cable subscribers had to replace poor quality cable with "CT100" type, replace unshielded splitters etc to solve the problems.


  • Registered Users, Registered Users 2 Posts: 69,551 ✭✭✭✭L1011


    DMC wrote:
    I think the Roberts radios are made in the UK, I dont see a "Made in China" on my DAB radio or box, but then again, it doesn't say "Made in Britain" either. :rolleyes:
    .

    I think they're made in Louth :p

    Roberts left UK ownership about 11 years ago IIRC. Now owned by the formerly Northern Irish now Irish Glen Dimplex and I -think- they're made here. Neither of mine have any "Made In" statement on the radio that I can find, though.


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    OK, time to pick some posts...
    Sound fairly dismal for DAB the small number of cars. And that is the biggest "market segment" for some categories of people.

    Are the qty of Dab Tabletops skewed by availability of decent sized Table top radios?
    I don't entirely understand what you mean Watty. The DAB radio I have myself is a "table-top", an Acousitc Solutions Portal 2 DAB / FM receiver that I got a year ago. Best thing about it is that its whip aerial can be disconnected and be connected to an external aerial through an F-Socket. When the BBC Mux was still only coming from Divis up until the Spring, I had a set of rabbit ears hooked up in the attic connected to the Portal 2 which pulled it in very well - with the whip aerial, not a sniff. Through reading reviews it seems that these receivers and the Evoke Pure range are among the most sensitive.

    http://www.acousticsolutions.net/product.asp?ID=176
    Hiya,

    who did you contact at RTÉ? Just wondering as I'd send them on reception reports also, if they're looking for them.
    Yes, I wonder are they looking for reception reports.... Any word on how much power they are using??
    Well an email I got back from them said that if I was to pickup their tests, they'd like to hear from me again so I'm sure they would like some feedback, it wouldn't really harm much I guess especially if you gave some details (receiver used, aerial etc.)
    i was just wondering if anyone else receiving the same MUX's as myself are getting more stations,or if anyone in the same area as myself are receiving other MUX's,I am hoping to modify the antenna and make and external jack,when i do a manual search i am receiving other stations but they aren't coming above the minimum signal required for reception.any help or info would be great
    If you're getting labels for other stations youmust be living somewhere hugely high up and picking up stations from across the water :eek:. Alas there are currently no more DAB stations in N.I. broadcasting at the moment, and there is unlikely to be more until VHF television starts to shut down in the Republic.

    On the Ofcom report today, it looks like they're going to offer blocks 10B-11A for DAB broadcasting in the near future as long as they can get international clearence for them next year (there's a big ITU conference due next year to finalise frequencies for DTT, and various digital radio services including DAB and DRM). On paper it won't be possible to extend these frequencies across Northern Ireland - the block 11 frequencies are already null because of Truskmore (RTÉ1), the block 10 frequencies will be troublesome as they lie on the same frequencies as TV channels from Kippure and Maghera.

    Once again in the report Digital 1 mention that they'd like to expand into N.Ireland but Ofcom have so far refused to allow them. I've already said on D*****l S*y that they could probably get away with using block 11D to serve Greater Belfast without casuing too much trouble to viewers of Truskmore, including within NI itself.
    If subscribers are using poor quality cable (bad shielding), and poor quality splitters instead of proper metal ones there could well be problems.
    Many coax plugs are badly made up by DIYers with outer having poor contact etc. This will let interference in.

    I remember reading cable interference did indeed happen to many people when DAB was being tested in the Netherlands, cable subscribers had to replace poor quality cable with "CT100" type, replace unshielded splitters etc to solve the problems.
    I read about these problems in the Netherlands myself, I think these DAB transmissions were delayed because of it. And with the stories of the cable network in Dublin being strung from house to house and it being as leaky as f**k, I won't be surprised to hear problems arising. Didn't an RTÉ DTT test on VHF Band III Channel D from Three Rock Mountain had to be brought to a premature end because it interfered with a channel on the cable network?

    Looking forward to the New Year now, I'm looking forward to this challenge. :) Now as a little addition, some photos of the DAB lift from about a month ago - not bad getting block 11 DAB signals with Truskmore in full swing! The Digital 1 reception on 11D was thought to come from NW England, either Caldbeck or Winter Hill.


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    And four more...


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Wow. Lancashire local muxes :eek:


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    UTV interested in Ofcom's DAB expansion??

    UTV and Channel 4 weigh up bids for digital radio network

    By Amanda Andrews
    http://business.timesonline.co.uk/article/0,,9071-1953021,00.html

    BROADCASTERS including UTV and Channel 4 are considering bids for a new national digital network of radio licences to be sold by Ofcom, the industry regulator.

    It is thought that BT, Absolute Radio, the radio investor and consultancy group, Emap and Chrysalis, the radio groups, and Macquarie, the Australian private equity investor, are considering bids.

    The regulator announced the sale of the licences yesterday. Its decision means that every part of the country eventually will be able to receive digital radio broadcasts. At present, 37 areas have no local digital stations, including Dumfries, Caernarfon and Northampton. Ofcom is not expected simply to award the licences to the highest bidder. Bidders will have to show a detailed business proposal and prove that they have the resources to invest in such a network.

    UTV, which bought The Wireless Group, owner of TALKsport, from Kelvin MacKenzie in May, is keen to have a greater presence in UK radio and has confirmed that it is considering making an offer.

    Media groups are most likely to make joint bids for the spectrum. Channel 4 already has held informal talks with Emap, owner of the Kiss and Magic stations, about making a joint offer for the network. It has not yet decided if it will team up with Emap and will be speaking to other media groups. Channel 4 already has a 51 per cent stake in OneWord, a radio station on the Digital One national network.

    BT said that it is considering bidding for the new digital radio spectrum. The company wants extra digital capacity for new services such as its Livetime joint venture pilot project with Vodafone, which broadcasts live television and radio on mobile phones.

    A BT spokesman said: “BT Livetime is evaluating a number of options which could enable it to expand its range of mobile broadcast services in the future. These options include bidding for future digital spectrum.”

    Ofcom is keen to avoid a possible legal dispute with GCap Media, the country’s largest commercial radio group and majority shareholder in the Digital One national network. GCap has threatened to sue Ofcom if it goes ahead with the new national digital network in competition with Digital One.

    A GCap spokesman said: “This decision is disappointing, but by no means a surprise. It is unhelpful that this announcement has been made just two days before Christmas. As there is no appeals process in the regulatory framework, our only option may still be a judicial review.”

    A national digital network could prove attractive to international media players, such as Emmis Communications, the American radio group, and RTL, the German media giant.

    MAKING WAVES

    # Ofcom says that it will plug the gaps in digital radio coverage by making spectrum available for new local and national groups of radio licences

    # Every part of the country will be able to receive digital radio broadcasts, although at present 37 areas have no local digital stations

    # The release of new spectrum will lead to the creation of new digital radio stations

    # The present national digital network, Digital One, is a joint venture backed by GCap and NTL


  • Closed Accounts Posts: 394 ✭✭Propellerhead


    My sources indicate that the broadcasting hours for the first three days of January will be 0600 to 0800.

    From the fourth onwards I understand that the hours will then extend to (I think) 2000.

    I have no information as to what stations will broadcast yet.


  • Registered Users, Registered Users 2 Posts: 1,045 ✭✭✭deaglan169


    hi has anyone noticed that the score mux is off the air today the 28th dec,i havent moved my dab radio or antenna the bbc mux is working but high error rate 50 are so,has anyone else noticed are is it a problem my end


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    deaglan169 wrote:
    hi has anyone noticed that the score mux is off the air today the 28th dec,i havent moved my dab radio or antenna the bbc mux is working but high error rate 50 are so,has anyone else noticed are is it a problem my end
    I'm still able to get both but each of them are at a lower signal level than normal in my case.


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  • Registered Users, Registered Users 2 Posts: 1,045 ✭✭✭deaglan169


    my signals were 2 bars above the minimum required but tonight the bbc mux is coming in but it is only on the limit must be on reduced power does the score mux come from divis aswell?


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Score is on Black Mountain, iirc.

    No reports of tx work on the BBC Reception site.


  • Closed Accounts Posts: 7,230 ✭✭✭Solair


    Without the BBC behind it, DAB here will be a flop.

    RTE simply don't have enough content and are not large enough to produce enough content to produce a DAB service that is anything other than a poor quality digital mirror of FM services.

    Today FM could provide some news music stations perhaps?

    Newstalk or some other outfit might want to go with a national news service.

    The independent local stations will have very little commercial interest in DAB as they are quite happy with the status quo. In fact, the smaller stations (i.e. non-Dublin/Cork) in particular, will have a vested interest in making sure that DAB doesn't allow FM104, 98FM, RedFM, 96FM (UTV & Co) etc to go nationwide eating into local revenues.


  • Registered Users, Registered Users 2 Posts: 2,439 ✭✭✭Richard


    If UTV get interested in the ROI DAB market (which seems likely) then I would have thought that talkSport being available is also very likely.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Solair wrote:
    Without the BBC behind it, DAB here will be a flop.

    I cant really see the BBC getting behind this, because its completely the opposite to television. With radio, there has been no real history over the past 30 years of BBC Radio being widely available via FM. Of course Radio 5 Live and 4 LW are clearly available, but I dont hear that many people wanting the other BBC radio stations like R1 and R2. I hardly listen to BBC Radio via conventional methods anymore, in fact, I didn't listen to BBC Radio on FM much at all.

    What I mean is, in Ireland, there was always been a lot of people looking to get BBC tv, but not so much radio.


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    Without the BBC behind it, DAB here will be a flop.
    Well if that's the case then DAB is bound to be a flop. The chances of BBC stations being on DAB on a FTA basis in the Irish Republic are about as close to nil as you can get.
    RTE simply don't have enough content and are not large enough to produce enough content to produce a DAB service that is anything other than a poor quality digital mirror of FM services.
    Partly agree. There is no real scope for a permenant expansion of RTÉ Radio right now. However DAB would allow them to perhaps provide more regular "secondary" services such as sports commentary opt-outs from RTÉ Radio 1 (a la BBC 5 live sports extra) and possibly look at programming for immigrant communities like they had on 612 MW a few years back. Aside from that its difficult to think what else RTÉ could do, the only other option would be to say allow the likes of WRN to "share" their multiplex (or any other broadcaster that shares a public information interest, possibly the BBC World Service).
    Today FM could provide some news music stations perhaps?
    The only thing I could see Today FM do is perhaps run a dual-channel station, one with news and sport and another concentrating on music, with a mixture of the two "simulcast" on FM.
    Newstalk or some other outfit might want to go with a national news service.
    Bear in mind that at the moment, the Irish Republic only has two Band III allocations, one for RTÉ and another for commercial radio used nationwide. Therefore the "commercial" multiplex would be ideal for stations looking for a national audience. There's certainly no doubt that the likes of Newstalk would be very keen, but even then they'd probably prefer using an MW transmitter rather than DAB to begin with.
    The independent local stations will have very little commercial interest in DAB as they are quite happy with the status quo. In fact, the smaller stations (i.e. non-Dublin/Cork) in particular, will have a vested interest in making sure that DAB doesn't allow FM104, 98FM, RedFM, 96FM (UTV & Co) etc to go nationwide eating into local revenues.
    Agreed but if this trial proves to be successful then its almost certain that at some point in the near future the national commercial multiplex would be licenced out and these locals would be like King Canute trying to hold back the tide.
    If UTV get interested in the ROI DAB market (which seems likely) then I would have thought that talkSport being available is also very likely.
    Isn't talkSport blocked to RoI Sky subscribers?:confused:
    I cant really see the BBC getting behind this, because its completely the opposite to television. With radio, there has been no real history over the past 30 years of BBC Radio being widely available via FM. Of course Radio 5 Live and 4 LW are clearly available, but I dont hear that many people wanting the other BBC radio stations like R1 and R2. I hardly listen to BBC Radio via conventional methods anymore, in fact, I didn't listen to BBC Radio on FM much at all.

    What I mean is, in Ireland, there was always been a lot of people looking to get BBC tv, but not so much radio.
    I always thought there was a small but loyal following for BBC Radios 1 & 2 in the Republic but that it was never anywhere near enough to rival the TV interest. But as I've already said, the chances of the domestic BBC radio stations being on DAB in the Republic are very very slim.


  • Registered Users, Registered Users 2 Posts: 69,551 ✭✭✭✭L1011


    RTE already do opt-outs for sporting evens on 567 and 252 as compared to FM, I'd expect both to be carried on DAB on a nationwide basis - they're both carried on satellite seperately, and the MW/LW version is whats on Hotbird


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Going OT, Talksport is still unavailable to Irish Sky subscribers, but why that hasnt changed, or that UTV havent made it FTA, is probably down to the fact that they have a deal with Sky to honour.

    The current opt-outs on Radio 1, such as Second Helpings in MW Saturday and Sunday afternoons, and extended sports coverage would be excellent on DAB.


  • Registered Users, Registered Users 2 Posts: 848 ✭✭✭marclt


    DMC wrote:
    Going OT, Talksport is still unavailable to Irish Sky subscribers, but why that hasnt changed, or that UTV havent made it FTA, is probably down to the fact that they have a deal with Sky to honour.

    The current opt-outs on Radio 1, such as Second Helpings in MW Saturday and Sunday afternoons, and extended sports coverage would be excellent on DAB.

    I hope the signal travels as far as us over here in Wales... on the top of the Preseli's you can always pick up the Dublin commercial stations... might be worth my while heading up there with the portable!!


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  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    There is a good chance, as the Dublin commercial stations are all sited on Three Rock, which is where the DAB trial will come from.


  • Registered Users, Registered Users 2 Posts: 2,330 ✭✭✭Antenna


    marclt wrote:
    ... on the top of the Preseli's you can always pick up the Dublin commercial stations...

    a bit off topic (reply in a different thread) but I'd be very interested if you could post a bandscan of all Irish FM transmissions receiveable during normal conditions there (mountains in S.W. Wales)


  • Registered Users, Registered Users 2 Posts: 848 ✭✭✭marclt


    Antenna wrote:
    a bit off topic (reply in a different thread) but I'd be very interested if you could post a bandscan of all Irish FM transmissions receiveable during normal conditions there (mountains in S.W. Wales)


    OK matey

    As soon as I get a chance, I'll post details up!

    Marc


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Less than 11 hours to go.....

    Time to go out, burn some midnight oil, and then, just when its time to go to bed, I'll tune in the DAB radio at 6am. :)

    Lets hope its a Happy New Year! :D


  • Registered Users, Registered Users 2 Posts: 1,812 ✭✭✭Charles Slane


    DMC wrote:
    Less than 11 hours to go.....

    Time to go out, burn some midnight oil, and then, just when its time to go to bed, I'll tune in the DAB radio at 6am. :)

    Lets hope its a Happy New Year! :D

    We'll expect an early report if there's good news. Unfortunately I still haven't got a DAB receiver so you'll have to be my ears for a while :D


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    7am Report

    Nothing to report. :( No signal here in Cabra anyway.... Now for sleep.


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  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    9am update....

    Well no sleep yet....

    But good news! Clermont Carn is broadcasting DAB!! Three Rock certainly isnt.

    To explain... I thought that if I could get the BBC National DAB mux up in the Dublin mountains... then I should get Clermont Carn....

    AND I DID!

    Drove up there, got the signal as I was driving up. When I stopped, the signal was loud and clear!
    When you do a scan, it appears as "Configuration 1" and stations on the are appear as...

    Rad 1 (sometimes as "Rad 1 a" for some reason
    2FM
    R na G (sometimes as "R na G a" for some reason)
    Lyric FM (no sound)
    Today FM (no sound)
    WRn (no sound)

    I'm sure its Clermont, as I had direct line of sight of Three Rock, (as nearly the whole of Dublin has) not a whisper.

    Pictures to follow!

    EDIT: BTW, programme choice was good.... John Bowman looking back at 80 years to the day, of the country's first radio station, 2RN.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    dab0.JPGdab1.JPGdab2.JPG
    dab3.JPGdab4.JPGdab5.JPG
    dab6.JPGdab7.JPGdab8.JPG
    dab9.JPGdab10.JPG


  • Registered Users Posts: 1,468 ✭✭✭White Horse


    Not so great to have a couple of channels we can already receive in pristine stereo.

    Also, RTE's DAB service appears to have screwed up reception of BBC DAB service from Belfast.

    Anyone else have problems receiving BBC since RTE started their trial?


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    None here from myself :( tried at around 7:00 with nothing about. Though it could be a problem of trying to pick out a weak signal with a strong BBC and Score next door to it. And White Horse, that might be your problem.


  • Registered Users, Registered Users 2 Posts: 1,045 ✭✭✭deaglan169


    hi just did a search for the dab stations from clermont but no success here in monaghan although i do have a bad path to clermont, i think its time for an external antenna(happy new year all)

    dec


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  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Not so great to have a couple of channels we can already receive in pristine stereo.

    Also, RTE's DAB service appears to have screwed up reception of BBC DAB service from Belfast.

    Anyone else have problems receiving BBC since RTE started their trial?

    Hi, welcome along.

    Its a trial, so they wont be starting any new services if a) the trial is deemed a success and b) RTÉ could possibly justify it.

    As for reception, I was able to listen for the few minutes to BBC DAB and RTÉ DAB up in the mountains, and I didnt get any interference. Make/model of radio? As NC said, its possible as the muxes are near each other. Are you using an outdoor aerial?

    The trial really only started today, so its best to ring 1850 584 584 (RTE Reception Info) when they are open. The trial for these couple of days are only early in the morning, but do contact them. They'll need all the reception reports, good and bad.


  • Closed Accounts Posts: 394 ✭✭Propellerhead


    I'm in Celbridge, and my bedroom window has direct sight of the Three Rock mast.

    I have a Roberts Sports DAB, which could not get any signal at all at 7.25am this morning. If Three Rock was on the air I would expect to get the channel labels at least, even if the sound quality was poor. The only explaination I can think of was that Three Rock did not transmit any DAB at all today (Jan 1st).

    I'll try again tomorrow in case the RTÉ engineers overslept today... :mad:


  • Closed Accounts Posts: 44 Conor S


    Im receiving them with 100% signal strength in Ardee Co.Louth.
    DMC has covered most of theinfo regarding the tests above but there are however two points ID like to raise:
    1.The full titles of the stations all have the word audio after them which looks a bit unprofessional IMHO
    2.Some people I know have now completely lost reception of the SCORE NI multiplex on 12D due ot these tests.They are however very close to Claremont Cairn.I however am only suffering from a lower quality signal on SCORE NI multiplex (similarly to what happened my BBC multiplex when they put BBC on from Brougher Mountain) but it is still listenable
    3.The tests have been on all day I thought they were only on at selected hours??

    Overall it looks like a very thrown together operation but perhaps itll improve in the days to come.
    Conor


  • Closed Accounts Posts: 1,757 ✭✭✭lawhec


    I however am only suffering from a lower quality signal on SCORE NI multiplex (similarly to what happened my BBC multiplex when they put BBC on from Brougher Mountain)
    That's strange. Brougher Mountain coming online should reinforce reception rather than take away from it.:confused:

    In the pictures I posted I managed to get a multiplex from Britain on 12C with the BBC and Score on-air a while back. I know that the adjacent channel barrier on my receiver is 35db. Might need to try some outdoor places...


  • Closed Accounts Posts: 44 Conor S


    Theres a difference between a multiplex in Britain and a multiplex a few miles up the road.Much stronger signal has overloaded this persons receiver.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    Conor S wrote:
    1.The full titles of the stations all have the word audio after them which looks a bit unprofessional IMHO

    That explains why I was getting the "a" after some station names. This changed within the hour that I was listening to earlier up the mountains.
    Conor S wrote:
    2.Some people I know have now completely lost reception of the SCORE NI multiplex on 12D due ot these tests.They are however very close to Claremont Cairn.I however am only suffering from a lower quality signal on SCORE NI multiplex (similarly to what happened my BBC multiplex when they put BBC on from Brougher Mountain) but it is still listenable
    I'm starting to think that those with outdoor aerials in North Louth are being affected. Overload on the tuner/too close to the action for an outdoor aerial. As I said earlier, and like you have said Conor, the further away you are, the less of a problem this is. But it is a problem for those in North Louth. I'd like to see if White Horse can try getting Score and RTÉ away from a outdoor aerial, just moving location, using the whip.
    We dont know what power these tests are being conducted at.
    Conor S wrote:
    3.The tests have been on all day I thought they were only on at selected hours??
    Surprised by this... reports from highlands in North Kildare (of which there are few), confirm what we've seen and heard.
    Conor S wrote:
    Overall it looks like a very thrown together operation but perhaps itll improve in the days to come.

    We are witnessing a trial, so I dont really care if it looks cobbled together. Its if/when this goes live in a marketing sense that this feedback will make it look good.


  • Registered Users, Registered Users 2 Posts: 889 ✭✭✭byrnefm


    What bit rates are being used by the stations? I'm presently in SW Donegal, far from the reach of any DAB signals from anywhere :(


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    8:30pm update

    Remember the tropo a few weeks ago? I got Digital 1 mux from Scotland in my bathroom.... tried again there....

    Clermont Carn coming in bubbly as hell, but working...

    192kbps.

    More in a few mins...


  • Closed Accounts Posts: 46 marksi


    Not that I would particularly expect to receive anything, but just to confirm it, here in North Down I am not getting anything at all.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    dab11.JPGdab12.JPG
    dab13.JPGdab14.JPG
    dab15.JPG


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  • Registered Users Posts: 1,468 ✭✭✭White Horse


    DMC wrote:
    Hi, welcome along.

    Its a trial, so they wont be starting any new services if a) the trial is deemed a success and b) RTÉ could possibly justify it.

    As for reception, I was able to listen for the few minutes to BBC DAB and RTÉ DAB up in the mountains, and I didnt get any interference. Make/model of radio? As NC said, its possible as the muxes are near each other. Are you using an outdoor aerial?

    The trial really only started today, so its best to ring 1850 584 584 (RTE Reception Info) when they are open. The trial for these couple of days are only early in the morning, but do contact them. They'll need all the reception reports, good and bad.

    Hi, I listen to DAB on two radios, an Arcam DT81 and a Roberts RD1. Both are connected to a loft aerial as I'm in a low lying coastal area and not in an ideal position for Divis. I normally receive BBC at 80-100% and Score is normally poor at 20-30% (ie. usually unlistenable).

    Evening reception on BBC has improved to 60-70% with a little tweaking on the aerial to maximise reception.

    I'd hate to lose reception of BBC on DAB. Once you get used to add-free radio, it's hard to go back.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    The main problem in DAB doesn't mainly lie with the use of MP2 (though that's hardly a plus point) but in its specification rigidness and that it was designed for national and regional networks. For local radio outside of cities like Dublin and Belfast, DAB doesn't really work out well without it being a bandwidth hog, moreso than FM.

    Agreed NC, lets hope thats addressed with Ofcom in the next year or so. The BBC will be looking for more spectrum space, Digital 1 will be hoping that there isnt another commercial national mux operator

    Up in Belfast today, was in Currys in Donegal Place and Sprucefield, not a great selection of DAB kit on display, no Roberts RD25 or RD27 or the Sony quad-band on display. Possibely as this was post-Christmas. I had my RD5 on for most of the way, and there wasnt any co-channel interference along the path where I had both BBC DAB and RTÉ DAB, and even when Score kicked in at the top of the Newry bypass.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    I'm out of the loop this morning.... any news?


  • Closed Accounts Posts: 394 ✭✭Propellerhead


    Nothing at all from Three Rock again this morning. I tried calling RTÉ Reception on the 1850 number but the line is still closed. :mad:


  • Registered Users Posts: 1,432 ✭✭✭pbirney


    Just spoke with a girl on 1850-584584. They are planning to be on the air from Three Rock over the next few days. She said that tests are being carried out today but she says there may not be any audio!


  • Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Pity it's not from Mt Lienster as well or instead. I can get a 15W 434MHz FM signal here in Patrickswell "fully quietening" from it.


  • Registered Users, Registered Users 2 Posts: 889 ✭✭✭byrnefm


    Arrived back in Dublin today after some time in Donegal and had my DAB radio with at the time. When on the N3 just on the outskirts of Dublin city (near Blanchardstown), I tried out my radio and it said that no stations were available. I manually tuned to 12C and saw that I was getting full signal strength - but no stations were available on the multiplex! That was at about 12:10pm.

    I later tried it again when back in Stillorgan, not expecting to hear anything - but lo and behold, I suddenly was able to get the three broadcasting stations (Radio 1, 2FM and R na G) at full signal strength! That was at 2:55pm.

    I decided to then do some proper testing at 3:30 and found that I couldn't receive any signal - but moving my radio about got a poor to medium signal. I'm nearly in view of the Three Rock transmitter (I'm just five minutes from Stillorgan Shopping Centre, which has a clear line-of-sight) so either they turned down the signal or it was turned off. Is it possible to receive a signal from Claremont Carn in Stillorgan? Basically, if I'm sitting in my room (which has a window on the side towards Three Rock), I am presently now just getting ">>>>" of a signal most of the time. If I move too much or in the wrong direction, I lose it.

    I've attached some pics of the data collated at 4pm.

    Observances (checking it occasionally throughout the day).

    Equipment: LaGIO R105 dual-band hand-held receiver, bought at Maplins some time back. Headphones act as antenna for Band-III, built-in antenna for L-band.

    "01:24" really meant 14:58, however, it doesn't appear to be accurate - 07:00 was really 18:16.
    21-12-2001 really means 03-01-2006
    DAB audio delay compared to analog signal: 1.8 seconds (timed by stopwatch)

    14:58 - perfect signal (every ">" lit up across the screen), Radio 1, 2FM and RnaG audible. Other three have perfect signal but no audio. All at 192kbits.
    15:30 - very poor signal
    16:15 - Only Radio 1 now available, rest have no audio
    16:26 - RnaG and 2FM back on the air
    17:53 - Lyric FM now audible also.
    18:15 - No other changes.


  • Registered Users, Registered Users 2 Posts: 10,726 ✭✭✭✭DMC


    byrnefm wrote:
    14:58 - perfect signal (every ">" lit up across the screen), Radio 1, 2FM and RnaG audible. Other three have perfect signal but no audio. All at 192kbits.
    15:30 - very poor signal
    16:15 - Only Radio 1 now available, rest have no audio
    16:26 - RnaG and 2FM back on the air
    17:53 - Lyric FM now audible also.
    18:15 - No other changes.

    Superb detail.. excellent stuff.

    As pbirney got from the reception line, Three Rock was testing today.


  • Closed Accounts Posts: 44 Conor S


    Lyric is now audible from Claremont Cairn also.But still no sign of audio on WRN or Today fm (the two stations which interest me most...)
    I will record some samples of Lyric (192kbps) and BBC Radio 3 (192kbps) tomorrow if I get a chance and you can compare the quality.I suspect the BBC is better for some reason.
    Is 3 Rock still on this evening??Is it mirroring the present activity from Claremont Cairn?
    Conor


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  • Posts: 0 [Deleted User]


    Guys,I'll be in Heathrow next week and might pop into Dixons there for a duty free Dab (I'll be going outside the EU)

    Any recommendations.
    Obviously I want a strong tuner and I want an ability to connect to an aerial and importantlyto an amp
    I dont want it as a hifi separate though,I want a portable.

    Price ?


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