RTÉ DTT - Mount Leinster

elsie1b

Mount Leinster is broadcasting on channel 39 at the moment.

Mr McBoatface

Mount Leinster - Channel 39 up and running again at the moment along with Channel 45.

The Cush

jobyrne30 wrote: »

Mount Leinster - Channel 39 up and running again at the moment along with Channel 45.

Possibly RTÉ's two PSB muxes, appears to be happening on other transmitters also.

The Cush

The Cush wrote: »

Possibly RTÉ's two PSB muxes, appears to be happening on other transmitters also.

Or they're having difficulties receiving ch 45 to feed the arklow transmitter

Mr McBoatface

It's no longer there, but I suppose watch this space. If it is indeed the 2nd mux lets hope that before but most likely after ASO they switch DTT transmissions currently on channel 45 to another frequency that doesn't suffer interferance.

12 element

What's it broadcasting? That's one of its allocated DTT channels.

marclt

Keep us posted on when this TX is using Ch. 39 again...

Mr McBoatface

marclt wrote: »

Keep us posted on when this TX is using Ch. 39 again...

I just rescanned the DVB-T channels on my HTPC and It's back again on CH39 at the moment. Broadcasting the same content as CH45

Arklow has switched on ch 24 this afternoon aswell so it looks like a 2nd mux test as opposed to a move from 45 to 39.
But at least while it's on,moire people in wexford can receive RTE dtt.

This thread would be better off merged into the reception difficulties sticky

Mr McBoatface

Deleted User wrote: »

Arklow has switched on ch 24 this afternoon aswell so it looks like a 2nd mux test as opposed to a move from 45 to 39.
But at least while it's on,moire people in wexford can receive RTE dtt.:)

Agreed it most likely a 2nd mux as opposed to a move of channels.

I'm not expecting it to be the case but with 2nd muxes turned on elsewhere I now have to wonder if the 2nd muxes are on because extra space will be required for the of end the month for extra channels like TV3, 3E and the RTE+1/RTE Kids time-share and maybe even HD content.

signal strength on 39 here is 86% in north wexford
Quality 100%
Thats on a presely aerial with no mt leinster aerial!
Doubtless 100% on both with an aerial pointed that way.

RTENL/Comreg take note!

Gerry Wicklow

Nice to see 2nd mux on from Arklow. The only thing is if it is a reaction to interference from Caradon Hill on Ch21 then this makes no difference as Ch24 from Caradon is just as strong in lift conditions.

I don't think caradon hill would have had any effect in Arklow town-It didn't out here 2 miles away in the strongest trop during the week for over 2 decades!Most of the populus of Arklow would be within a mile as the crow flies from the tx.
It's a 2nd mux test as is 39 from M leinster.
Hopefully the testing is to compare coverage on the 2 separate channels though as one wouldn't be long concluding that ch 39 works an awfull lot better in the south east than 45.
Perfectly would be the adjective that comes to mind.

Mr McBoatface

CH39 gone again

Yeah it went off yesterday evening actually and wasn't back since afaik.

Same with Arklow ch 24

I wonder do they have to have someone on site to do this? or is it on some sort of a timer or centrally controlled somehow?

Who is driving round testing the reception and how and where? Do they catalogue black spots,how do they find them? by accident? trial and error ?
How extensive is the testing?

watty

Probably there are two different kinds of tests:

1) That the all gear all actually "goes"/works in different configurations. No loose connections, infant failures of Amplifiers & etc, Aerials mounted correct direction, no damaged cables. Operation of automatic changeovers to spare feeds or equipment all works.

2) Check a few reception points only to compare validity of a computer model such as
this http://www.wattystuff.net/amateur/m70-limerick.htm
(computer model for 435MHz approx of mast with FM voice Mobile near Croom, Co. Limerick)
Reports indicate that the Model is actually fairly good.

At UHF such models are quite good. They tend to be too optimistic at 3G Mobile (2100MHz)

If the "map" was TV, then green might be adjusted for setop signal levels, Amber for ordinary roof aerials and Red for Fringe (big aerials). On my map (two way voice repeater) Green means works with handheld rubber duck, amber is OK with roof aerial on car/van and red means it may work, but noisy, probably perfect with a chimney aerial. The "holes" at North and East are areas shadowed by Woodcock, Arra Mountains/Tountenna and Silvermines/Keeper of course.

That actual "repeater" has been removed. Apparently for maintenance. I have no details.

Gerry Wicklow

I've seen the engineers van at Arklow Tx. It was an unmarked white box van with a distinctive log-periodic on a hydraulic / telescopic mount sticking through the roof. Presumably they can drive to various locations, jack this thing up and see what's what.

watty

A similar van/ aerial setup was used as a DTT test transmitter in 1997.

bmaxi

Rte DTT being received again in Courtown tonight on ch 45. picture only at the moment. Signal 50% quality 80%. Where is this likely to be from?

The Cush

Question for written answer in the Dáil yesterday

Broadcasting Services

478. Deputy Leo Varadkar asked the Minister for Communications, Energy and Natural Resources if there is any impediment to ComReg licensing RTE to use either channels 30, 34, or 39 for public service transmission of RTE from the Mount Leinster transmitter; and if he will make a statement on the matter. [37901/10]

Minister for Communications, Energy and Natural Resources (Deputy Eamon Ryan): The matter referred to by the Deputy relates to the assignment of spectrum, which is a matter for the Commission for Communications Regulation (ComReg). ComReg is the statutory body responsible for the management of spectrum in Ireland, including that used by TV services as referred to in the Deputy’s question, under the Communications Regulation Act 2002. ComReg is also responsible for issuing a licence to RTÉ in respect of television services transmitted by digital terrestrial means under the Broadcasting Act 2009.

I have no direct role in the assignment of specific spectrum.

http://debates.oireachtas.ie/DDebate.aspx?F=DAL20101019.XML&Node=3924#N3924

Mr McBoatface

jobyrne30 wrote: »

Mount Leinster - Channel 39 up and running again at the moment along with Channel 45.

Back again

so is Arklow ch 24... they must have a track worn in the road between there and mt Leinster


Any of the others with 2 muxes on?

jabarrett35

BB What I find odd is I'm getting Ch39 with signal strenght of 75% and 75% quality and neither of my aerials facing Mt Leinster, I have never got Ch45 at strenght. I known Presely co channels but even when Presely non receiveable here Ch 45 is at best 60% strenght and 56% quality. Are they using increased power or is Ch 39 in a more receivable place on the transmitter tower than Ch 45.

I find that too.
Ch5 analogue from presely on 37 used do the same.It and BBC2 were always strongest db wise and picture clearness wise.
The same was the case with arfon with itv1 wales being best by far.
It may be higher power,but I doubt it.

What I think is happening is that ch is one of the 3 most effecient in the B band for those with b group aerials.

We could offer this advice to RTENL and it would be saving them money.
Ch 39 was perfect in Arklow town and now they've spent tens of thousands on a new transmitter there.

Please note I've not got an engineering degree and I presume they do...
Public money is easy wasted isn't it ?

jabarrett35

Oh Yes RTE have a track record of wasting our money, mainly on their salaries! But seriously if they are testing ch 39, why are they only turning it on for a few hours and with many days gap? If it is for a 2nd muxs they know it works so what's the point of transmitting the same as ch 45?

FREETV

jabarrett35 wrote: »

Oh Yes RTE have a track record of wasting our money, mainly on their salaries! But seriously if they are testing ch 39, why are they only turning it on for a few hours and with many days gap? If it is for a 2nd muxs they know it works so what's the point of transmitting the same as ch 45?

It is probably to deliberately block and spoil your viewing of the Freeview channels broadcast from Preseli.

FRIENDO

Maybey they are planning to increase the power of signal from Mth Lenister on ch39 or ch45 to reach areas in the South East which are black spots for Mth Lenister.
This could possibly save money and do away with the extra transmitters.

bmaxi

Ch 39 being received in Courtown today, along with Ch 45. 55% signal 98% quality. Haven't seen Ch 39 for a long time.
As we're unlikely to receive Arklow, I presume this is from Mt. Leinster. Still no sound though

Into Everything

Receiving ch39 in New Ross for the time in months. Ch 45 was gone for the last 4 days. Is channel 39 going to stay on as I have a better signal/ quality reception 80% / 95% compared to 55% / 90% from channel 45.

Thanks

Into Everything

Ch39 now gone again