Astra 2F: Pre-Operational Discussion

[solly]

same strange 1n need complited to move to 2f end of this month
orther forum it be only next year when astra 2e will operation
@iandoh
will be move to 2b this month
interesting will be transfeld 1n to 2f

 

[Analoguesat]

I cannot test locking of DVB-S2 signals. Only still DVB-S receivers here (my upgrade plans somewhat depend also on the 2F footprint)!

I used my Analogue LT-8700 as a raw signal analyser to see if I could see any peak at 11023. I posted about it in the old thread, here :http://www.satellites.co.uk/forums/topic/156801-astra-2f-at-28e-at-last/?view=findpost&p=823403
Unfortunately, I cannot see anything there. I hope it is just covered by the strong adjacent 1N peaks, but I do not hold my breath,

Some have told me, that if I do not have a DVB-S2 I cannot make any test. But I suppose I should at least see the carrier. Which I do not.

I am waiting for the announced switch of DVB.S services in the next days (tonight?) to have a better test.

Cheers,

Stefano

A DVB only tuner wont even see a carrier on a DVB-S2 signal. Trust me on this - you just get a "no signal" message.

 

[Llew]

A DVB only tuner wont even see a carrier on a DVB-S2 signal. Trust me on this - you just get a "no signal" message.

AS, tune into that channel on that old AD3000ip of yours. You'll see the signal bar come alive. Any spectrum analyser will show the carrier.

 

[Analoguesat]

Okay I stand corrected - never tried it on the old analogue receiver, but on digital kit if definitely gives no signal. That one I have tried

 

[StefanoFI]

A DVB only tuner wont even see a carrier on a DVB-S2 signal. Trust me on this - you just get a "no signal" message.

Not talking about locking, BER or the likes.
Just talking about measuring the presence of a carrier. I am not trying to "tune" that signal (with an analogue receiver!), just spotting the carrier! How come then, that I can see the nearby transponders carriers (all digital, some maybe even DVB-S2 themselves, I did not check) with the same equipment?

Stefano

 

[timo_w2s]

So since 2F is taking over 2B payload, when is 2B moving if anyone knows? Just curious, would be nice to optimise my setup with 2F there.

I'm not looking forward to 2F in Helsinki, but you should get a better signal in Pärnu. I just wish they would switch on a European beam transponder so we can see how well it performs in the east. The suspense is killing me...

 

[iandoh]

I'm not looking forward to 2F in Helsinki, but you should get a better signal in Pärnu. I just wish they would switch on a European beam transponder so we can see how well it performs in the east. The suspense is killing me...

You'd assume so. 2B and A south beams give horrid reception and I've lost them in snow now.

 

[Analoguesat]

Not talking about locking, BER or the likes.
Just talking about measuring the presence of a carrier. I am not trying to "tune" that signal (with an analogue receiver!), just spotting the carrier! How come then, that I can see the nearby transponders carriers (all digital, some maybe even DVB-S2 themselves, I did not check) with the same equipment?

Stefano

I hadnt considered the effect of the analogue tuner - I havent tried scanning a DVB-S2 signal on the only bit of ex analogue kit Ive got that has signal bars on it as that receiver was retired long before DVB-S2 became common. (Its now back in use more or less permanently tuned to NHK World

I had only thought about what happens on digital kit, and no receiver Ive ever tried will show a DVB-S2 signal on a DVB-S only tuner.

Llew has already pointed out the error in my thinking

 

[trevortronix]

A DVB only tuner wont even see a carrier on a DVB-S2 signal. Trust me on this - you just get a "no signal" message.

Yes, thank you. I discovered this the hard way :-)

 

[skomedal]

O-zzz O-zzz O-zzz O-zzz O-zzz

Have ordered an inverto black ultra lnb just incase of reception probs from freesat - 2F transfer/migration.

 

[BlindFaith]

I had only thought about what happens on digital kit, and no receiver Ive ever tried will show a DVB-S2 signal on a DVB-S only tuner.

Not quite true. If you can access the AGC you will get the envelope of the spectrum when scanning without lock. That's what crazyscan is using. Locking is the next step (blind scan). DVB2000 could produce a spectrum envelope without locking. You can't see the difference between DVB-s and S2. Of course DVB2000 only could lock DVB-S modulated carrriers. Built-in "spectrum analyzers" in some STBs are working the same way ;)

 

[solly]

nokia 9500s was before 10 ago not hold it
it nice receiver
now duo with avl tuner much better signal

 

[StefanoFI]

DVB2000 could produce a spectrum envelope without locking.

This is my present workhorse. I can do a spectrum directly on the screen, without even interfacing to a PC.
I sometimes use it to spot feeds on the fly. Quite raw, but effective. All under control of the remote.
It is a real pity that being it a very old concept (but it was 10 years ahead of the herd), it is stuck to DVB-S.

I do not know much about Enigma2. but also Dreambox does not give you such flexibility, at least in Enigma1

I am going to update the system with some HD Dreambox incarnation, but much depends on if Astra 2F will be viewable or not. Otherwise, I might still wait a bit (though many feeds are now in DVB-S2/h264 anyway, therefore there is a reason to upgrade. Already scraping e-bay for good occasions!).

Sliding off-topic?

Stefano

 

[Analoguesat]

10964 isnt planned to be moving until tonight solly!, although its very strong here to today

 

[radioagogo]

10964v 5 db up how
it look very strong spot beam here

Hola Solly, that frequency carries the channel 5 group and is very strong here on 2.4dish.

 

[solly]

it right 10964h
maybe uplink vertical only for testing signal

 

[william-1]

I see that all the tracking info is now giving the correct location at this moment in time.




_http://www.n2yo.com/?s=38778

_http://www.satellite-calculations.com/Satellite/Catalog/catalogID.php?38778

Information gathered from reading various SES sites:

Astra 2F will now replace Astra 2B @ 28.2 east within the next few weeks Astra 2B will then move to 19.2 east,

Astra 2E will replace Astra 1N @ 28.2 east in the 1st qtr of 2013 Astra 1N will then move to 19.2 east,

Astra 2G will replace Astra 2A in 1st qtr of 2014,

There is also talk of Astra 1H going to the graveyard orbit but it will probably go to 23.5 east & like Astra 1E & 1F move to another location before being scrapped,

Astra 5B will go to 31.5 east in the 3rd qtr of 2013 to increase capacity at this location,




[warning]Live External Links Disabled as per Forum Rules[/warning]

 

[tothbros]

ok, so let me understand something...on Astra 2F UK Beam there are how many transponders? based on the info currently available to us, the frequency range of 2F is above 10.95 Ghz. so is it possible that 2F UK Beam will only consist of 5 tp's? or there are more frequencies available? is this decided/determined ahead of launch and is this public info?
and also, about 2F PE Beam...known number of frequencies and number of tp's?

 

[TENERIFEFORUMTV]

can you give me links to that info because thats not what i have read??

ASTRA 2F Ku-band: Europe/UK 48
Africa 12
Ka-band: 3 tooway internet FRANCE GERMANY

all ku bands transponders cover ANY PART of 10.7 to 12.75

this information was taken from SES.COM the largest satellite company in the world with 52 operatiing satelites
and a billion euro industry

these are the facts


ASTRA 2B (africa) TRAFFIC 27/11 done..
ASTRA 1N traffic to 2F in 19 hours (all of it )
ASTRA 2B (europa) TRAFFIC to 2F soon
ASTRA 1N to 19e ´this week´´
ASTRA 2B to 19e ´´1/2012
ASTRA 2C to 28e ´1/2012

this my option



this is the time

ttp://www.timeanddate.com/countdown/to?iso=20121204T05&p0=534&csz=1

 

[Lazarus]

All the forecast information we've gathered from whatever source, however seemingly reputable and authoritative, can be (and has been!) treated with a healthy degree of scepticism: The only information that counts is historical - ie after the event.