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LW ,MW, SW Radio and The Future Of DRM

  • 21-05-2016 7:39pm
    #1
    Posts: 21,179 ✭✭✭✭


    Now that Europe is closing down LW and MW stations and SW is all but gone I was hoping there would be a future for DRm at least to keep the bands alive but it's not going to happen because the LW, MW and SW transmitters are being dismantled and most are actually gone so there will be no transmitters left to transmit DRM from.

    The U.K is one of the last to keep MW and LW alive and BBC R4 will be gone as soon as the Valves wear out in their transmitter. Most of the MW stations will be gone in a few years.

    Germany, France and the Netherlands have closed most if not all MW transmitters , most LW is gone too. Our own MW broadcasts are long gone and the last LW 252 RTE will be gone in 2017, I remember Atlantic 252 all too well !

    Pretty sad time for radio. I always loved being able to hear distant stations and being amazed of what you could pick up.

    Listening to radio on the internet , on your mobile etc isn't radio, it's just not the same as listening to radio on a portable transistor.

    Now pretty much all that's left are some distant SW stations from around the world.

    In the U.S there is no signs of MW closing any time soon.

    It's a pity DRM died but funny enough it's huge in India and growing fast so perhaps we might see a future in Europe some day for DRM, not everyone wants to be stuck to the internet all the time and not everyone can pick up the internet while out and about and to be honest the quality of Irish radio is at best a disgrace with very little that isn't just pop music and news every 30 mins and it was really nice to have alternative choice on MW and LW.


«1

Comments

  • Registered Users, Registered Users 2 Posts: 4,687 ✭✭✭political analyst


    Now that Europe is closing down LW and MW stations and SW is all but gone I was hoping there would be a future for DRm at least to keep the bands alive but it's not going to happen because the LW, MW and SW transmitters are being dismantled and most are actually gone so there will be no transmitters left to transmit DRM from.

    The U.K is one of the last to keep MW and LW alive and BBC R4 will be gone as soon as the Valves wear out in their transmitter. Most of the MW stations will be gone in a few years.

    Germany, France and the Netherlands have closed most if not all MW transmitters , most LW is gone too. Our own MW broadcasts are long gone and the last LW 252 RTE will be gone in 2017, I remember Atlantic 252 all too well !

    Pretty sad time for radio. I always loved being able to hear distant stations and being amazed of what you could pick up.

    Listening to radio on the internet , on your mobile etc isn't radio, it's just not the same as listening to radio on a portable transistor.

    Now pretty much all that's left are some distant SW stations from around the world.

    In the U.S there is no signs of MW closing any time soon.

    It's a pity DRM died but funny enough it's huge in India and growing fast so perhaps we might see a future in Europe some day for DRM, not everyone wants to be stuck to the internet all the time and not everyone can pick up the internet while out and about and to be honest the quality of Irish radio is at best a disgrace with very little that isn't just pop music and news every 30 mins and it was really nice to have alternative choice on MW and LW.

    Analogue radio hasn't been shut down in Ireland. So how can Digital Radio Mondiale (assuming that's what you're referring to as DRM) be shutting down?


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    No don't get me wrong, I'm not saying Analogue radio is being shut down but the stations are disappearing fast on MW, LW and SW.

    The initial plan was to change to DRM "Digital Radio Mondiale" on these bands but since the transmitters are being shut down and dismantled this won't happen.

    In India DRM is big and getting a lot bigger.


  • Registered Users, Registered Users 2 Posts: 1,735 ✭✭✭AwaitYourReply


    I often wonder just how long more the current DAB trials will continue on in their never-ending "pilot testing" in Dublin, Cork, Limerick and parts of the North-East. It is not ideal for those living in other parts of the country. How long more will we enjoy listening to radio on the FM Band before it too is gradually undermined?


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    I'd say FM has a long time yet because analogue stations can still be heard with weaker signals, digital either works or doesn't and DAB wouldn't work well in rural Ireland.

    I think it's bad of RTE to terminate all LW and MW stations because not all parts of Ireland can get FM never mind DAB or the internet. There was a lot of unhappy Irish in the U.K when it was discovered RTE is terminating the LW 252 service. Not everyone wants to listen to the radio on what's usually a crappy internet enabled radio.

    DAB stations usually sound a lot worse than FM because of the very low bitrates of 16-36 Kbps. Some are higher but in general the sound isn't great.


  • Registered Users, Registered Users 2 Posts: 1,407 ✭✭✭FRIENDO


    The U.K is one of the last to keep MW and LW alive and BBC R4 will be gone as soon as the Valves wear out in their transmitter. Most of the MW stations will be gone in a few years.


    This is sad to hear, I listen to MW radio mostly in the car, 5 Live, Talk Sport and R4.
    Especially when driving early in the morning around 5 o clock, as Irish stations would be on auto drive at this time.
    Lucky I'm driving on the east coast, so can pick up an ok reception.

    However you can still pick up European language stations on MW, unfortunately I don't understand the language, but they are still broadcasting.


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  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Yeah it really is a very sad time for radio.

    There are many stations left on MW but the these are in rapid decline and nothing compared to just a few years ago.

    I too listen to BBC in the car because there is usually far better quality programs than on Irish Radio.

    I can listen to the "radio" on the phone but the 3G signal is dodgy outside the larger towns and it's not easy to change stations.

    You'll be able to hear SW stations from outside Europe too but even these are in rapid decline.

    The stations buzzing on SW today are Amateur radio, 160, 80, 40 meters etc. But you can't pick them up on a normal SW radio.


  • Registered Users, Registered Users 2 Posts: 1,510 ✭✭✭galtee boy


    While I agree that it was more fun to try and pick up actual radio stations from far afield on MW or LW, I personally welcome the Internet for radio. For those of us not living near the border or east coast, it was a nightmare trying to drag in Five Live, Radio 4 etc for football commentaries and news etc. Now at home, on a good quality internet radio , being able to listen to those BBC stations crystal clear and thousands more if you want, is fantastic. The bit rate on the BBC stations is quite good and for talk radio , the bit rate doesn't have to be that high anyway. Even in the car, I connect my phone via Tunein Radio app, and I find that the coverage is very good, even in rural areas. In particular, Vodafones 3G and 4g coverage is excellent in rural areas as well as urban. Of course there are black spots, but there are plenty black spots even for FM too.


  • Registered Users, Registered Users 2 Posts: 132 ✭✭notmyusername


    galtee boy wrote: »
    While I agree that it was more fun to try and pick up actual radio stations from far afield on MW or LW, I personally welcome the Internet for radio. For those of us not living near the border or east coast, it was a nightmare trying to drag in Five Live, Radio 4 etc for football commentaries and news etc. Now at home, on a good quality internet radio , being able to listen to those BBC stations crystal clear and thousands more if you want, is fantastic. The bit rate on the BBC stations is quite good and for talk radio , the bit rate doesn't have to be that high anyway. Even in the car, I connect my phone via Tunein Radio app, and I find that the coverage is very good, even in rural areas. In particular, Vodafones 3G and 4g coverage is excellent in rural areas as well as urban. Of course there are black spots, but there are plenty black spots even for FM too.

    Does that still have the football commentaries blocked?


  • Registered Users, Registered Users 2 Posts: 1,510 ✭✭✭galtee boy


    Does that still have the football commentaries blocked?

    Yes, but that's easily solved, but not allowed to discuss it here. However I find that for some reason, some football commentaries on Talksport are not geo blocked and some are, but all sports commentaries on BBC radio are geo blocked . But sport aside BBC Radio 2 is an excellent music station and Graham Nortons show on it is excellent, all crystal clear via Internet radio.


  • Registered Users, Registered Users 2 Posts: 132 ✭✭notmyusername


    galtee boy wrote: »
    Yes, but that's easily solved, but not allowed to discuss it here. However I find that for some reason, some football commentaries on Talksport are not geo blocked and some are, but all sports commentaries on BBC radio are geo blocked . But sport aside BBC Radio 2 is an excellent music station and Graham Nortons show on it is excellent, all crystal clear via Internet radio.

    Ah yeah, I know the workaround, but haven't needed to use the app in a while. I just wondered if the blocking still occurred - it did always seem random.


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  • Registered Users, Registered Users 2 Posts: 1,407 ✭✭✭FRIENDO


    In the past I loved Atlantic 252 on long wave, it was great, now my car doesn't even do LW, only FM and MW.

    But I find RTE Gold excellent, when I want to do some work at home.


  • Registered Users, Registered Users 2 Posts: 71,186 ✭✭✭✭L1011


    I often wonder just how long more the current DAB trials will continue on in their never-ending "pilot testing" in Dublin, Cork, Limerick and parts of the North-East. It is not ideal for those living in other parts of the country. How long more will we enjoy listening to radio on the FM Band before it too is gradually undermined?

    RTE DAB is permanent, not a trial


  • Registered Users, Registered Users 2 Posts: 1,510 ✭✭✭galtee boy


    L1011 wrote: »
    RTE DAB is permanent, not a trial

    Permanent for Dublin, Cork and Limerick cities and for those fortunate enough to live within the catchment area of Three Rock, Spur Hill and Keeper Hill transmitters respectively. What about the rest of the country ? They could at least pump out DAB from all the high sites like Mullaganish, Truskmore, Mount Leinster etc.


  • Registered Users, Registered Users 2 Posts: 4,074 ✭✭✭Digifriendly


    Here in N. Ireland I listen on my car radio to both BBC Scotland/Wales for sport (810/882 MW) and will be sorry when these are gone. I also listen to them on my clock alarm bedside radio but its the car I will miss them most as I have them on Sky and internet at home.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    I tried to go all modern and listen to BBC R 4 LW on the mobile in the car and stream to the cars stereo, great sound quality of course but an extreme pain in the ass to use , touch screens in a car are a pain and I don't want to be playing with my phone while driving if I want to change stations. It was handy since I can't get LW on the car radio.

    I had only a few moments of the audio dropping out due to some dodgy signal areas. With buffering it makes a difference,

    So there is still no decent solution to going all modern for radio in the car at least, switching off analogue LW,MW is completely premature and wrong, I went into Currys in Carlow Town to check out internet radio's, they had 0. Only one Philips in Argos that did not get good reviews.

    Oh I discovered there are DVB+ transmissions from Mount Leinster perhaps intermittent, but most stream at a poor 36-128 Kbps, this is shocking in this day and age. The BBC stream about 320 Kbps and they use AAC too not mp3. Even online streaming of most Irish radio stations are poor quality and sometimes far worse than a good AM station due to extremely high compression.

    I was disappointed that I can't walk into a shop in carlow Town or even Naas any buy a decent quality internet radio, Harvey Norman charge about 70 Euro's more than Currys for the Roberts stream 93i and the closest place it's available in store is Blanchargstown, Currys have no collection in store meaning it has to be shipped in by special order from the U.K.

    The 93i is expensive but got good reviews, but you can't install batteries ! I want a portable one.

    The Stream 217 got good reviews but has no bluetooth, but is portable but I can't buy it in Ireland.

    I think that if Europe is switching off Analogue MW and LW then they should ensure there are an adequate supply of internet DAB+ radios available. I can find a DAB radio no problem DAB+ too. But internet enabled ? they are very hard to find in store, at least outside of Dublin.

    So if anyone can recommend me a good sounding portable internet radio with DVB+ that takes batteries let me know, looks like I'll probably have to goto E-bay.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    The Roberts Stream 217 can take batteries but has no built in charger and I've only an AAA , AA battery charger, unreal stuff in this day and age !


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    The 93I can actually take a lithium batter costing 50 Euro's which would actually cost 10 Euro's max for the bare battery, ridiculous !!! why not allow it to use C or D cells ?


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell



    I was disappointed that I can't walk into a shop in carlow Town or even Naas any buy a decent quality internet radio, Harvey Norman charge about 70 Euro's more than Currys for the Roberts stream 93i and the closest place it's available in store is Blanchargstown, Currys have no collection in store meaning it has to be shipped in by special order from the U.K.

    The 93i is expensive but got good reviews, but you can't install batteries ! I want a portable one.

    I have a Roberts 83i - the predecessor and find it clunky. To change from FM to Dab requies cycling through all options including LastFM whatever that is. I was onto them but got nowhere as regards a software update. It does have a 12v DC input which might run from a car battery, but you would need to check with them to see if it could.

    It takes ages to start up the internet radio - and is again clunky software.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    I have a Roberts 83i - the predecessor and find it clunky. To change from FM to Dab requies cycling through all options including LastFM whatever that is. I was onto them but got nowhere as regards a software update. It does have a 12v DC input which might run from a car battery, but you would need to check with them to see if it could.

    It takes ages to start up the internet radio - and is again clunky software.

    LastFm was a streaming service like Shoutcast, gone now though it's turned into something else I think, subscription of course.

    A friend of mine has the 83i and it's a decent radio but I agree, the software is a bit of a let down but he does like it and use it a lot but it wouldn't be for me and it only has DAB not DAB+ and there's no DAB here off the Mount Leinster transmitter. I hope the DVB+ stations are still working.

    Good or bad I don't know but I bought the Roberts R-Line R100, quiet expensive but at least it has the option to install a proper battery and not some thing that sticks to the back of the radio.

    It also has bluetooth.

    It's not long released I think and there are only 2 reviews from Amazon, and WhatHifi haven't yet reviewed it.

    Should be here next Monday or Tuesday.

    I've avoided buying internet radios until now because imo most of them were pretty poor.

    This R100 seems to tick all the boxes for me, finally. The "Optional not yet available" battery is a sting but if the radio is good and the battery lasts more than 5 hrs I'll be happy.

    Doesn't look bad ? perhaps not everyone's cup of tea. I quiet like it.

    235953407alt1?$prod_main$

    235953407alt3?$prod_lrg$

    Notice the battery under the radio with 3 lights ? this looks very neat and pretty large and perhaps can offer the quoted 12 hrs run time ?

    R100_front_battery_Zoom.jpg


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    LastFm was a streaming service like Shoutcast, gone now though it's turned into something else I think, subscription of course.

    A friend of mine has the 83i and it's a decent radio but I agree, the software is a bit of a let down but he does like it and use it a lot but it wouldn't be for me and it only has DAB not DAB+ and there's no DAB here off the Mount Leinster transmitter. I hope the DVB+ stations are still working.

    It does indeed have Dab+ and receives RTE's trial Dab+ service which has been on trial for years.

    I wish I could remove LastFM from the software but there is no provision for any tailoring of the menus. Very poor software.


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  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Are you sure it has DVB+ I don't see it in the specs ?

    we never tried to tune it in a very long time because there was no transmissions on DVB from Mount Leinster. Never tried to retune it but since I read there are DVB+ transmissions from Mount Leinster I might give it a go again. I thought when it had DVB on it that it didn't have +.


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    Well, I get DAB and DAB plus, I assume, from 3Rock, but it could be from Kippure. I get FM from 3Rock.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Does it tell you that you're on DVB or DVB+ ?


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    Does it tell you that you're on DVB or DVB+ ?

    Both. When you tune to RTE 1 it says RTE 1 for Dab or RTE 1+ for Dab+. On another radio that has Dab but not Dab +, it (obviously) does not tune the Bab + stations. Unfortunately, RTE use the advantage of Dab + to reduce the bit rate so it is something like the same quality.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Unfortunately, RTE use the advantage of Dab + to reduce the bit rate so it is something like the same quality.

    Typical of Irish stations, the poorest quality.

    128 kbps isn't quality, 128 kbps was the standard in the days of ISDN and 300 Kbps DSL.

    Some Irish DAB+ stations stream as dreadful as 32 Kbps, there should be standards for quality but sadly this doesn't exist in Ireland.

    Even most Irish internet streams are woeful quality. The BBC stream at 320 Kbps AAC.

    It's as bad as TV broadcasters advertising "HD Quality" Because the resolution might be a bit below 720p but the compression is terrible. This is why RTE's DVB transmissions are not good quality, they stream at only about 4-5 Mbs.


  • Registered Users, Registered Users 2 Posts: 1,407 ✭✭✭FRIENDO


    Here in N. Ireland I listen on my car radio to both BBC Scotland/Wales for sport (810/882 MW) and will be sorry when these are gone. I also listen to them on my clock alarm bedside radio but its the car I will miss them most as I have them on Sky and internet at home.


    Can get a good reception on BBC Scotland 810mw in Dublin, I follow the Scottish football and driving home from work to Dublin-Gorey, can still get it but it starts breaking nearer home.


  • Registered Users, Registered Users 2 Posts: 798 ✭✭✭Mickey Mike


    If Ireland is to launch a DRM service, the old transmission site at Tullamore should be used, formally Radio 1 MW 567khz. It should also use the SW band as the radio waves are shorter thus allowing a better signal. This will cover Ireland, the UK and a big chunk of Europe.
    I can't see it happening but who knows. I wonder if the radio mast is still standing at Tullamore.


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    If Ireland is to launch a DRM service, the old transmission site at Tullamore should be used, formally Radio 1 MW 567khz. It should also use the SW band as the radio waves are shorter thus allowing a better signal. This will cover Ireland, the UK and a big chunk of Europe.
    I can't see it happening but who knows. I wonder if the radio mast is still standing at Tullamore.

    Using DRM actually defeats the purpose as it requires new receivers. I thought the whole argument was to enable old people who emigrated from Ireland over 40 years ago to continue to use their old radios on LW to still get RTE 1.


  • Posts: 0 [Deleted User]


    If Ireland is to launch a DRM service, the old transmission site at Tullamore should be used, formally Radio 1 MW 567khz. It should also use the SW band as the radio waves are shorter thus allowing a better signal. This will cover Ireland, the UK and a big chunk of Europe.
    I can't see it happening but who knows. I wonder if the radio mast is still standing at Tullamore.
    Mast is still standing, saw it from the Dublin-Galway train last Friday.


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  • Registered Users, Registered Users 2 Posts: 981 ✭✭✭medoc


    I wonder if the radio mast is still standing at Tullamore.

    Yes it's still intact. They overhauled the mast and supports a few years before shutting down service. Can't say about the actual transmitter.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    The Tullamore site , isn't that where the 252 Khz transmitter is ?

    Where was the old MW one ?

    I can imagine when RTE closes 252 they will dismantle it and it's a shame because at night it gets good coverage through Europe. I would hope someone has interest in it. It would be a shame to see it go.

    If I had the funds I would love to set up a MW LW and SW station.


  • Posts: 0 [Deleted User]


    Tullamore is the old 567 site. Summerhill (or Clarkstown) is the 252 site.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Glad they haven't destroyed the Tullamore site yet. There should be preservation orders on these sites.

    You know, as mental as this sounds I feel every house should be equipped with a radio that has LW, MW and SW, if there was ever a major War or natural disaster and the internet and mobile comms went down then this would be the only means of receiving emergency communications.

    With Putin acting the Divil who knows what will happen, in the event of a high altitude Nuclear detonation all modern electronics will be fried due to EMP so old transistor radios, or even better, old valve radios should be in every house.

    Anyway, I feel that destroying LW, MW and SW transmitters would be a major mistake.


  • Registered Users, Registered Users 2 Posts: 798 ✭✭✭Mickey Mike


    I'm afraid we have to forget about AM radio going forward, we will be lucky to hold on to FM. These large AM transmitters are expensive to run and for them to work property they need to be on full power, unlike half power as of 252


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Analogue FM isn't going anywhere for a very long time. There is no real advantage to digital radio for short distance transmissions, digital would make much better sense on MW and SW bands.

    Digital FM or DAB and DAB+ usually mean a much inferior sound quality than analogue FM due to outrageous compression being used. You'll hardly find a DAb or internet radio transmission in Ireland above 56 Kbps. Absolutely shocking.

    My point still stands and I think it's very valid that in the event of a major natural disaster or war , we should keep MW, LW and SW transmissions alive and make sure every home is equipped with a decent quality radio.

    SRM on SW is supposed to be really good and India is pushing DRM big time and is quiet successful there I believe. I would live to not have to depend on the internet to listen to radio. Not to mention the battery sucking demands such devices require. I like to be free of the internet sometimes.


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  • Registered Users, Registered Users 2 Posts: 71,186 ✭✭✭✭L1011


    You'll hardly find a DAb or internet radio transmission in Ireland above 56 Kbps. Absolutely shocking.
    =.

    You won't find a DAB(v1) transmission that low in Ireland at all - 80k mono is the lowest. 48k DAB+ is perfectly acceptable.

    The claim that standard 128k MPEG1 Layer II DAB sounds worse than FM is based off the encoding technology available when launched about 20 years ago. The 96k stereo transmissions in the UK are worse, though - but we don't go that low here.

    Lyric is 160k which is almost unheard of in the UK.


  • Moderators, Science, Health & Environment Moderators Posts: 20,154 Mod ✭✭✭✭Sam Russell


    L1011 wrote: »
    Lyric is 160k which is almost unheard of in the UK.

    Lyric is unheard in Galway as well - whatever the bit rate. If DAB is to catch on it needs to go nationwide.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Lyric is unheard in Galway as well - whatever the bit rate. If DAB is to catch on it needs to go nationwide.

    There's no advantage to DAB. I see no point, I see a point to some digital transmissions on Am and Shortwave , some of the transmissions are quiet amazing over such distances, the signal needs to be quiet good though .


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    L1011 wrote: »
    You won't find a DAB(v1) transmission that low in Ireland at all - 80k mono is the lowest. 48k DAB+ is perfectly acceptable.

    The claim that standard 128k MPEG1 Layer II DAB sounds worse than FM is based off the encoding technology available when launched about 20 years ago. The 96k stereo transmissions in the UK are worse, though - but we don't go that low here.

    Lyric is 160k which is almost unheard of in the UK.

    Last I heard DAB it was woeful , think it was on the days of tests from Mount leinster.

    I certainly wouldn't call 48 Kbps acceptable , anything but.


  • Registered Users, Registered Users 2 Posts: 798 ✭✭✭Mickey Mike


    Can anybody predict what we'll have as a broadcasting standard in 20 years time in Ireland? Will we have FM or DAB+? I know AM will be well gone 'surely'


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  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Hard to imagine what the situation will be in 20 years, I expect FM will still be on the go, I mean why force people to buy new radios for something that's of no benefit ? DAB, = pointless.

    As I said making AM, SW digital makes sense and this is what they're doing in India and other parts of the world.

    Germany and France have 1 station that they are using DRM as a trial on SW but I don't think they're serious about it. There isn't a commercial DRM capable receiver available outside of India yet.

    I do think it's a massive mistake to abandon Am, and SW, if there is a major war or natural disaster, even a massive solar flare large enough to knock out massive sections of our electrical grids then chances are most digital forms of communications will go down and AM, LW, SW and FM may be the only form of communications.

    I feel every home in Ireland should keep an old AM, FM, LW, SW radio. Preferably the old transistor ones.

    To find out how good DRM is you'll have to get an SDR receiver , some of the RTL dongles or I use the SDRplay from http://sdrplay.com/

    One thing with SDR or any SW is that you need to eliminate sources of noice, any switch mode power supplies, such as monitors, some monitors are way noisier than others, led lights, compact fluorescent and power line adaptors for running internet over the house mains wiring is absolutely brutal etc.

    You'll need to decode the DRM signal also, check out the below site.

    http://www.rtl-sdr.com/tutorial-drm-radio-using-rtl-sdr/

    Note that with a lot of the SDR dongles you need to use an up-converter to use frequencies below in some cases 30 mhz, with the SDRplay you don't and it's less hassle , you don't need an up-converter.

    Anyway if you get it working, digital on SW is quiet amazing but does suffer the all or nothing problems with digital and the bitrate can be quiet low but it's an example of what can be done and it's amazing how clear stations can be from so far.

    I don't think AM or SW will go anywhere this century. There's still quiet a huge interest in Ham radio also and getting more popular with the likes of SDR, there's more interest in listening also. Some day I hope to get my Ham license.


  • Registered Users, Registered Users 2 Posts: 798 ✭✭✭Mickey Mike


    For DRM the short wave band is best, much better than LW and MW as the radio waves are shorter, I would like such a service, we have the mast in Tullamore Co, Offaly


  • Registered Users, Registered Users 2 Posts: 71,186 ✭✭✭✭L1011


    Last I heard DAB it was woeful , think it was on the days of tests from Mount leinster.

    I certainly wouldn't call 48 Kbps acceptable , anything but.

    You haven't heard it, then. 48kbps HE-AAC+ is not 48kbps mp3.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    L1011 wrote: »
    You haven't heard it, then. 48kbps HE-AAC+ is not 48kbps mp3.

    I have not heart the DAB broadcast in this quality but I have heard 48 Kbps AAC, compression has got a lot better over the years but it hasn't got that much better.....

    48 Kbps might be acceptable for small portable receivers but that's about it. It might be better than 48 kbps Mp3 but anyway they're both low quality streams, still I would prefer 48 Kbps over the on lime streams of 16-64 Kbps most Irish radio stations stream online.

    The BBC now stream 320 Kbps AAC online, I don't know about their DAB+ streams, I presume they'd use 48 Kbps if they deemed it acceptable quality. At that rate it's leaps and bounds better than FM but it all depends on how it's encoded at the radio station end. By the way the BBC high bitrate streams are Geo blocked , unbelievable lol.


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    For DRM the short wave band is best, much better than LW and MW as the radio waves are shorter, I would like such a service, we have the mast in Tullamore Co, Offaly

    Was that the old MW station ?

    Yeah to hear DRM on Shortwave is truly amazing. And it means I can listen to some stations with perfect clarity with none of that interference I am plagued with here in the housing estate, it's got a very bad RF problem and I would love to find the source but we're moving soon, however DRM means listening to SW stations is a pleasure even if most for now are low bitrate it beats the high RF problem I have to endure, when I go to my Aunts the difference to SW reception is just amazing.

    The problem is signal fade out, DRM like any other digital transmission needs a strong signal where you can still hear something on analogue but with RF it actually might not be heard.

    My problem for now is being tied to the laptop for DRM reception.

    The SDRplay is truly great device, I highly recommend it, you need a good antenna, well grounded or use a magnetic loop on a rotator on the chimney either, magnetic loops are supposed to be absolutely terrific at reducing RF interference in urban areas.

    The Wellbrook loops got great reviews.

    http://www.wellbrook.uk.com/Loop_Antennas


  • Registered Users, Registered Users 2 Posts: 798 ✭✭✭Mickey Mike


    The old MW station was RTE Radio 1 567 khz


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    The old MW station was RTE Radio 1 567 khz

    Which was Tullamore ?


  • Posts: 0 [Deleted User]


    Which was Tullamore ?

    Correct.

    Tullamore: RTE/Radio 1 1975-2008 (567 kHz)
    Athlone: Radio Éireann/RTE: 1933-1975 (565, 566 kHz). Radio 2/2FM: 1979-2004 (612 kHz)
    Clarkstown: Atlantic 252: 1989-2001, TeamTalk 252: 2002, Radio 1: 2004 onwards (252 kHz)


  • Posts: 21,179 ✭✭✭✭ [Deleted User]


    Thanks for that, Wow, was Atlantic 252 only on the Air 2 years ? seemed like a lot longer , I used to love that station !


  • Posts: 0 [Deleted User]


    Thanks for that, Wow, was Atlantic 252 only on the Air 2 years ? seemed like a lot longer , I used to love that station !

    12 years. 1989-2001.


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