Eutelsat 28A switchoff looming

[timo_w2s]

Incidentally, as these have gone to a UK spot, this further convinces me 2G will not be using the Europe beam much at all for UK TV.

Yes signals lower than I expected on Astra 2F UK beam when compared to Astra 2E UK beam most of these are around the 18dB mark.

So it's not just my LNB or setup then... even the new 2F UK 12422H is at 90% quality, almost 10% higher.

 

[Pride Of Cucamonga]

Looks like these are on the 2F UK spot. Quality isn't quite what I see on the SES spectrum TP's but assume reduced somewhat by the fact both TP's are pretty much co-channel/opposite polarisation as opposed to the usual SES 15MHz offset.

Can SES adjust the frequency plan at will or was this same frequency / opposite polarity originally designed into 2f?

 

[timo_w2s]

Just a thought, does this mean the skew will be the same across the band once 28A goes? I haven't checked, but I assume the 2F switchovers are now skewed to Astra's configuration and not Eutelsat's?

 

[timo_w2s]

Can SES adjust the frequency plan at will or was this same frequency / opposite polarity originally designed into 2f?

It looks like they had it planned all along, with 4 transponders on each bird taking over a section of Eut 28A band A transponders.

 

[Pride Of Cucamonga]

It looks like they had it planned all along, with 4 transponders on each bird taking over a section of Eut 28A band A transponders.

Seems odd to have stuck with a less efficient frequency layout. Less disruptive, but could there be other reasons?

 

[adonis1]

Yes
This TP's migrated from E28A to A2F UK beam
11307 V now 2F UK beam
11343 V now 2F UK beam
11307 H now 2F UK beam
11344 H now 2F UK beam

No signal on my 1m dish in Central Europe

Also no signal .

 

[timo_w2s]

Seems odd to have stuck with a less efficient frequency layout. Less disruptive, but could there be other reasons?

Perhaps at the time it was intended to be backup for Eutelsat with the hope they can take over the frequencies??

 

[Pride Of Cucamonga]

Perhaps at the time it was intended to be backup for Eutelsat with the hope they can take over the frequencies??

Yeah, i was just thinking the same. 2F has been providing Eurobird backup for last two (?) years without us knowing.

 

[Analoguesat]

Seems odd to have stuck with a less efficient frequency layout. Less disruptive, but could there be other reasons?

From DS user Strathclyde's comments on the other forum we know there is a second range of frequency changes coming later in June. I rather suspect that this is the point SES will rearrange the frequency band to suit their usual plan.

 

[Michal Norek]

Also no signal .

Yes ... no signal.... it is definitly UK beams TPs...
I have signal on EU beam 2F TP cca 10-11dbi

 

[hvdh]

It looks like they had it planned all along, with 4 transponders on each bird taking over a section of Eut 28A band A transponders.

Seems odd to have stuck with a less efficient frequency layout. Less disruptive, but could there be other reasons?

Indeed, using 27500 2/3 on 36 MHz transponders is inefficient, when 33 MHz would suffice.
But the extra bandwith allows to maintain the "odd" Eutelsat 28A frequency grid.
Maybe in due time, the 36 MHz will be used fully (11225, 11265, 11305 etc.) with 30000 symbolrate?

 

[Michal Norek]

Reception in Czech Republic confirmed UK spot beam.... measured orientation on DM 800HD se...

 

[M60]

Can SES adjust the frequency plan at will or was this same frequency / opposite polarity originally designed into 2f?

Apart from minor tweaks of a few MHz, they are staying much the same. The 125MHz spectrum where the D EB1 TP's are going to migrate to on 2G will be using the SES bandplan and offsets.

I've been out early today so not had chance to get my meter on my multiswitch (fed from a TD64 dish) here in the UK to do C/N measurements. I'm curious to know if the lower quality measurements are down to lower actual carrier level or a degraded C/N from LNB crosstalk on the co-channel but opposing polarity.

As these TP's are commercially run I'd not be surprised if the next move was a FEC change to 5/6 to flog more bandwidth to broadcasters and add extra channels.

 

[Pietclock]

strange they put those on the spot.... maybe 2F cannot use the PE for that band. I remember they had those interim TPs on the spot too when the first Change from E28A to 2F happend.

 

[M60]

strange they put those on the spot.... maybe 2F cannot use the PE for that band. I remember they had those interim TPs on the spot too when the first Change from E28A to 2F happend.

They were in band C as a parking slot prior to the 2F migrations in band G. After the 12422H spot activation most of us are now of the assumption that all birds can probably do wide/spot across the whole spectrum.

I wonder if C1 and C2 will be spot or PE, guess it's up to the operators unless Eutelsat are contracted to a few of each?I'd have thought it's dependant on the requirements of the uplink operators now it's clear there's an option.

 

[timo_w2s]

From DS user Strathclyde's comments on the other forum we know there is a second range of frequency changes coming later in June. I rather suspect that this is the point SES will rearrange the frequency band to suit their usual plan.

I somehow doubt it will change in this part of the band now (11.2-11.45GHz). I suspect we are stuck with the Eutelsat legacy arrangement here and the rest of the band will be the usual SES setup.

I think the main frequency changes Strathclyde mentioned will be for 11.45-11.7GHz to fit with the SES plan. Of the few active 28A transponders in this range they are using ones that are as close to the SES frequency plan as possible, give a few MHz either side. I don't think this is a coincidence.

 

[Pietclock]

here the new 2F spots have exactly the same strength as those between 10.95-11.2 ( not as weak as the 12.422H)

 

[mickwig]

They were in band C as a parking slot prior to the 2F migrations in band G. After the 12422H spot activation most of us are now of the assumption that all birds can probably do wide/spot across the whole spectrum.

M60, that is not an assumption. When I did my Research before Setting up the 240 CM 2 years ago I had a contact at SES in Munich (SES Platform Services) and the man said, that all the new birds can use any band on any antenna from any ... ! Which makes sense because there are no more restriction. I reckon flexibility is everthing.

 

[timo_w2s]

M60, that is not an assumption. When I did my Research before Setting up the 240 CM 2 years ago I had a contact at SES in Munich (SES Platform Services) and the man said, that all the new birds can use any band on any antenna from any ... ! Which makes sense because there are no more restriction. I reckon flexibility is everthing.

Well there are still gaps in the bands (eg 2F can't do 10.7-10.95) but I take your point about them being more flexible than ever. So in your opinion do you think they could run everything off UK spot beams and do away with Europe beams altogether?

To me it's looking like 10.7-11.7GHz will be mostly UK spots, if not all.
11.7-12.7GHz will be mostly Europe beams with some UK spots.

 

[Serafeim]

@ Arta, Greece, no signal at the frequencies after the change.