MUX 2 launch date ?

pa990

When is Mux2 due to start nationwide ?



Currently Spur hill only has Mux1 on Ch45

and Mullaghanish has Mux1 on Ch21 with Mux2 on Ch24 (occasionaly)

all of the above show the same 18 channels, 8 tv and 10 radio

The Cush

pa990 wrote: »

When is Mux2 due to start nationwide ?

There's been no official announcement.

Sam Russell

The Cush wrote: »

There's been no official announcement.

Well, there has. RTE 2 HD will be broadcasting on it in September this year.

The Cush

Sam Russell wrote: »

Well, there has. RTE 2 HD will be broadcasting on it in September this year.

There's been no RTÉNL announcement regarding the nationwide operational start of Mux 2.

The Ministerial Decision requires RTÉjr/RTÉ1+1 to start transmitting from Mux 2 from Sept 1st. RTÉ 2 HD is also required to be carried from the second mux - no date specified in the decision.

Could it be available from the national launch of Saorview at the end of May?

Sam Russell

The Cush wrote: »

There's been no RTÉNL announcement regarding the nationwide operational start of Mux 2.

The Ministerial Decision requires RTÉjr/RTÉ1+1 to start transmitting from Mux 2 from Sept 1st. RTÉ 2 HD is also required to be carried from the second mux - no date specified in the decision.

Could it be available from the national launch of Saorview at the end of May?

Of course it could. It could be available from April 19th. The launch was supposed to be end of April/begining of May. Now it sounds like the end of May.

But then again, it was supposed to be 2009.

They do not tell anyone anything.

The Cush

Sam Russell wrote: »

Now it sounds like the end of May.

End of May is the plan right now

Mary Curtis, Director of Digital Switch Over, RTÉ, said:
...

“This public information campaign will explain how people can easily make the switch to the new SAORVIEW service and enjoy the benefits of free digital television. The SAORVIEW service will be launched at the end of May this year,” she concluded.

http://www.saorview.ie/news/saorview-launches-public-information-campaign/

watty

Or 1999 even.
Most of the RTE staff do not know.

qhe0i9zvfgdou8

Lads I'm going to show my ignorance on the subject what is a mux and does the fact a second one is been launched affect how we receive the channels.

The Cush

Elian Yellow Nostril wrote: »

Lads I'm going to show my ignorance on the subject what is a mux and does the fact a second one is been launched affect how we receive the channels.

From the Broadcasting Act

“multiplex” means an electronic system which combines programme
material and related and other data in a digital form and the transmission
of that material and data so combined by means of wireless
telegraphy directly or indirectly for reception by the general public;

From http://www.saorview.ie/help/glossary/#m

Multiplex (mux) – In practical terms it might be a single frequency that contains a number of different digital TV or radio programmes.

Multiplex (mux), as used in these forums, is the name given to a UHF frequency channel carrying a combination of digital TV/radio/data. A second multiplex allow more digital TV/radio/data to be carried.

Analogue UHF Ch 21 (470-478 MHz i.e. 8 MHz wide) - 1 analogue TV channel e.g. RTÉ 1

DTT UHF Ch 21 (Mux) (470-478 MHz i.e. 8 MHz wide) - 7/8 digital TV channels, 9/10 radio channels, Digital Teletext/Interactive services

Sam Russell

The effect of requiring a second mux doubles the cost of the service. This means, either the cost for each channel doubles, or RTE NL are left carrying the exta capacity as a charge on them. Either way, opening the second mux is an additional cost. Is it necessary at this time? Will we now get the shopping and slapper channels we all crave?

qhe0i9zvfgdou8

The Cush wrote: »

From the Broadcasting Act


From http://www.saorview.ie/help/glossary/#m



Multiplex (mux), as used in these forums, is the name given to a UHF frequency channel carrying a combination of digital TV/radio/data. A second multiplex allow more digital TV/radio/data to be carried.

Analogue UHF Ch 21 (470-478 MHz i.e. 8 MHz wide) - 1 analogue TV channel e.g. RTÉ 1

DTT UHF Ch 21 (Mux) (470-478 MHz i.e. 8 MHz wide) - 7/8 digital TV channels, 9/10 radio channels, Digital Teletext/Interactive services

Thanks for the info I have a better understanding now I think so basically the second mux is another channel where extra programmes will be broadcast.

swoofer

not quite, a channel would be say RTE3 but it would be carried on the second multiplex or mux for short. A mux can carry more than one channel but it will be on one frequency so for me on CH48 I get the current MUX of rte1 etc.

To be honest its not really that important but use of channel incorrectly may confuse yourself.

so a MUX = a frequency band and on that band there will be a number of channels ie tv and radio broadcast.

mux 1 = active and full

mux 2 = to be activated in the future.

gb--

watty

A mux takes same space (roughly) as an Analogue channel used to take.

It's a Multiplexed serial data stream of any number of individual data for Video, sound, teletext, EPG, other data whatever up to the capacity of the bitrate. Unused capacity is stuffed with dummy data. So the number of Digital TV channels possible in the space of an old Analogue channel depends on resolution and quality also the amount of other data such as EPG, Interactive, Radio etc.

So a Mux is an RF channel, but not a TV channel. In analogue era only one TV channel fitted in an RF channel (it didn't quite fill it as solidly as a mux does though).

qhe0i9zvfgdou8

Ah right I think I have it now Thanks lads ye're a mine of information

dmm1000

If and when RTE go live with the 2nd Mux will the channel chosen be close to (numerically) the channel number of Mux 1.

If it is required that we need to invest in a "grouped" aerial in the near future would we be better wait until Mux 2 is live i.e

Is there a possibility that for example RTE would put Mux 2 on a far higher channel number than Mux 1 meaning that an aerial in a certain "group" would work on one mux and not the other ?

Of course a wideband aerial would not have this potential problem - but if any of us are thinking of buying a "grouped" aerial should we wait until Mux 2 appears ?

The Cush

dmm1000 wrote: »

If and when RTE go live with the 2nd Mux will the channel chosen be close to (numerically) the channel number of Mux 1.

If it is required that we need to invest in a "grouped" aerial in the near future would we be better wait until Mux 2 is live i.e

Is there a possibility that for example RTE would put Mux 2 on a far higher channel number than Mux 1 meaning that an aerial in a certain "group" would work on one mux and not the other ?

Of course a wideband aerial would not have this potential problem - but if any of us are thinking of buying a "grouped" aerial should we wait until Mux 2 appears ?

Mux 2 and any future muxes should be in the same aerial group as Mux 1. If not RTÉNL will advise the use of a wideband aerial.

With only 51 sites in the revised DTT plan it should be possible to fit the 2 muxes and future 6 muxes into the same aerial group.

The Cush

Two muxes are here tonight (with the same content). Previously if I remember correctly the mux on Ch 24 shut down in the evening and powered up next morning.

Are we getting closer to to the switch on of the second mux? Two and a half weeks to the end of RTÉ 2 Temporary channel.

glineli

I posted the same question on another thread, so sorry mods about that.

I have a samsung tv, i think it can only pick up one digital channel e.g. 48 for Meaghara. So if another Meaghara Mux starts up for example on 46, do you need to point to both 48 and 46?

The Cush

glineli wrote: »

I have a samsung tv, i think it can only pick up one digital channel e.g. 48 for Meaghara. So if another Meaghara Mux starts up for example on 46, do you need to point to both 48 and 46?

On my Sony it placed the second mux in the 800's automatically, probably because they were duplicates of mux 1. I did a manual retune of Ch 24 (mux 2) on Mullaghanish and manually stored them below the mux 1 channels (9-16).

glineli

The Cush wrote: »

On my Sony it placed the second mux in the 800's automatically, probably because they were duplicates of mux 1. I did a manual retune of Ch 24 (mux 2) on Mullaghanish and manually stored them below the mux 1 channels (9-16).

Thanks, so you are picking up mux 1 channel ? and mux 2 channel 24? Maybe it will all be ok on the night so.

thanks

The Cush

glineli wrote: »

Thanks, so you are picking up mux 1 channel ? and mux 2 channel 24?

Yes.

Pat Gleeson

I did a recsan on PS3 / PlayTV and it indicated 34 channels (presumably a duplicate of the existing 17 channels), but the number available reverted to 17 at the end of the scan. The existing 17 channels are still displayed on the PlayTV EPG.
The PlayTV OSD does not show what channels are being scanned. Signal quality was 85% and 100% on Mux 2.

Sam Russell

Pat Gleeson wrote: »

I did a recsan on PS3 / PlayTV and it indicated 34 channels (presumably a duplicate of the existing 17 channels), but the number available reverted to 17 at the end of the scan. The existing 17 channels are still displayed on the PlayTV EPG.
The PlayTV OSD does not show what channels are being scanned. Signal quality was 85% and 100% on Mux 2.

That would be normal, it deletes duplicates and takes the strongest signal ones.

A second mux would carry different channels. That is why they are using the same set, I presume.

Machinehead

Mux on ch.24 from Mulla gone since about 5pm. No channel 55 mux 2 testing started on Maghera atm.

Souriau

I rescan for Cairn Hill and no extra Mux, just Mux 1 on RF c47.

Pat Gleeson

The second Mux on Woodcock Hill appears to be on Ch. 51

Johnboy1951

Machinehead wrote: »

Mux on ch.24 from Mulla gone since about 5pm. No channel 55 mux 2 testing started on Maghera atm.

Sorry didn't understand that ....... is the second mux transmitting from Maghera?

glineli

Johnboy1951 wrote: »

Sorry didn't understand that ....... is the second mux transmitting from Maghera?

I dont think so, i scanned last night after i read this post, didnt find anything on ch 55 anyway

Machinehead

Machinehead wrote: »

Mux on ch.24 from Mulla gone since about 5pm. No channel 55 mux 2 testing started on Maghera atm.

Excuse my poor grammar. My point was that whereas the 2nd mux had restarted from Mullaghanish, ch 55 was still quiet from Maghera. When mux 2 was fired up from Mullaghanish the 2nd mux on Maghera was usually lit up as well, but not this time.

glimmerman123

Mux 2 not fired up from Maghera.

EdmondShiels3

mux 2 on from mt. leinster showing tg4, 3e, rte news now on ch 54

EdmondShiels3

no signal on any channel now. mt. leinster

EdmondShiels3

EdmondShiels3 wrote: »

mux 2 on from mt. leinster showing tg4, 3e, rte news now on ch 54

I'd say that was Kippure or Three Rock rather than Mount Leinster.

lucernarian

Ch.54 is not from Mt. Leinster, the 2nd mux is on Ch. 39 I thought.

EdmondShiels3

most of the time getting channels on ch45

The Cush

Mux 2 powered up again at Mullaghanish, duplicate of Mux 1 content.

glimmerman123

The Cush wrote: »

Mux 2 powered up again at Mullaghanish, duplicate of Mux 1 content.

RTENL seem to be testing mux 2 a lot from Mullaghanish. I wonder is there any particular reason for this?

glimmerman123

Picking up a very weak signal on ch 24 looks like mux 2 from Mullaganish is fired up. Can anyone confirm please.

The Cush

glimmerman123 wrote: »

Picking up a very weak signal on ch 24 looks like mux 2 from Mullaganish is fired up. Can anyone confirm please.

Yes, it's been up since this morning. Killing my Woodcock Hill Ch 47 (side-on aerial) reception.

It been off and on in recent times, got tired of posting the information. I think they're just playing with us

glimmerman123

I suppose it's just a copy of mux 1.I Guess we are not missing much at the moment. We most likely won't see mux 2 fired up on all transmitters until RTE 2 HD moves over in September.

lucernarian

The Cush, are you losing a signal on Ch 47 because of a mux on Ch 24? I must be missing something!

Peter Rhea

The Cush wrote: »

Yes, it's been up since this morning. Killing my Woodcock Hill Ch 47 (side-on aerial) reception.

Would that be Cnoc an Oir (47V) ?

Pat Gleeson

Peter Rhea wrote: »

Would that be Cnoc an Oir (47V) ?

It could be - it's due to be on air sometime soon:

http://www.saortv.info/terrestrial-saorview/transmitters/

The Cush

To_be_confirmed wrote: »

The Cush, are you losing a signal on Ch 47 because of a mux on Ch 24? I must be missing something!

Odd indeed. I've posted about it before.

It's a hi-gain Gp A aerial for Mullaghanish (with masthead amp). Since Mar 2009 it's been pulling in Woodcock Hill side-on, 40-60% signal strength. But whenever Ch 24 is switched on Woodcock Hill reception disappears. It's been a good indicator to me that Ch 24 Mullaghanish is powered up.

As Justin says "RF Reception Really Is A Black Art"

Peter Rhea wrote: »

Would that be Cnoc an Oir (47V) ?

No, not a chance of that in east Co Limerick. I've been receiving Woodcock Hill side on my Mullaghanish Gp A aerial since they both started engineering test transmissions in Mar 2009.

Antenna

The Cush wrote: »

. But whenever Ch 24 is switched on Woodcock Hill reception disappears.

Do you by any chance have a modulator (or modulators) in use? try turning it off and see if that makes a difference to the above.

The Cush

Antenna wrote: »

Do you by any chance have a modulator (or modulators) in use?

No.

Justin Case III

From what I can gather there is no definate start date yet for Mux 2, but as the individual transposers for Mux 1 are being turned on, the relavent main station Mux 2s are also being switched on (temperarily), to test the new transposer's Mux 2. This is common practice in the industry as it saves time should any faults accur after the next phase is launched.

SRB

Seeing a signal on 58, not as strong as 54's and not locking. Anyone else noticed it ?

glimmerman123

Mux 2 channel 55 from Maghera is now fired up. The signal quality keeps dropping in and out and the signal strength is around eight. I'm not picking up any channels i take it this is because the signal quality is not locked in and also there maybe nothing on it. Channel 48 from Maghera is fine good signal quality and strength.

glimmerman123

Same here on channel 55 from Maghera. Channel 48 fine.

DigiDec

Have ch 58 from Three Rock, quality and strength are 100%, the same as ch 54.
No services on it at present.