Astra 1N tests - latest chat

[gfi]

Astra 1Kr and 1N are a new generation of satellite. They can setup the 'narrow beam' as they will need. Doesn't matter, where. If will be placed A1KR on 28,2E, UK spotbeam will be prepared for UK only as sure. What's different, Astra 1KR have a lower power than 1N. Also diameter of dishes between satellites are (I think so) different. Astra 1N have a dishes with 130cm, Astra 1KR ???1KR has been focused for a NE Europe, in the past. Mostly Poland aerial and TVP also increased FEC for their TP.Whats making Astra 1N UK Spotbeam wide-ranging, is a low diameter of 1N (dishes) and high power. I really don't know, as will changed UK spotbeam, but I'm scared too...

 

[welshman234]

Looks good to me.

What do you mean? The beam shaping is fixed by the aerial design (i.e. before launch). The only thing the operator can change is where the beam is directed.

BBc2 next Sunday there will be a documentary about the building of a satellite by Astrium

 

[welshman234]

said documentary is at 8pm

 

[Huevos]

I was thinking how much they can shift the spots

Astra 2C is a different case because they are not spot beams. What I'm getting at is a spot beam would (probably) have a steerable aerial that moves independantly of the satellite body, whereas a pan-continental beam would (probably) be from a fixed aerial that cannot be move independantly, and to orient it you would need to orient the whole spacecraft. In a case like Astra 2D though where there is only one beam and that beam is the spot beam the aerial doesnt need to be steerable because the whole craft can be orientated.

when 2C went to 31.5E there appeared east and west beams spaced quite far apart compared to when it was at 28.2E.

That could be just be the map projection.

 

[Lazarus]

said documentary is at 8pm

http://www.satellites.co.uk/forums/transponders-channels/195427-how-build-satellite-bbc2.html

 

[welshman234]

If the EIRP could be raised on 1KR from 50 to 53 at beam center, it would, in principle , be a goer. Or 2E, F and G could be designed just like this!!!!!. I looked at some of the old German posts on 1KR and was astounded to read that it could not be reached in large parts of Western Germany with a 1.8 m dish. It was a swine to get east and west.

 

[welshman234]

http://www.satellites.co.uk/forums/transponders-channels/195427-how-build-satellite-bbc2.html

Sorry Tivu I didnt know about this thread..

 

[solly]

astra 1n not receiver in cyprus and israel
but astra 1kr we recevice 4 mter hd+ and ard and zdf hd
so how it posible 1kr 1 receiver and 1n now receiver ?

 

[welshman234]

Solly 1KR might go to 28.2 we are just thinking what might happen if it goes there. The source of this information is not SES but posters on a Spanish forum.

 

[Lazarus]

Sorry Tivu I didnt know about this thread..

No need to be sorry - I appreciate many people don't keep an eye on all parts of the Forum, so linked to it for the benefit of anyone who might be interested

 

[C0re]

MAJOR shift of channels from 1KR to 2C on 16/11

I wouldn't say major. Only 4 transponders moved to 2C (in total 5 when you count the analogue transmission of the German Arte that already switched satellites in June). There are still 28 transponders active on the 1KR at 19E. Like I said earlier, this is for energy saving to lengthen the expected lifetime of the 1KR (confirmed by SES).

My source is a reliable Dutch Satellite News website: _http://www.satellitemagazine.com/?action=pagina&id=49&id2=3106&title=ASTRA+2C+satelliet+op+ASTRA1-satellietpositie+in+gebruik+genomen

For the English version I advice you to use Google translate

[nolink][/nolink]

 

[C0re]

BTW has the BBC HD transponder switched to the Astra 1N because the signal quality of that transponder has risen here from about 80% to 95-100%.

 

[Huevos]

the BBC HD transponder switched to the Astra 1N

That's bogus.

 

[C0re]

That's bogus.

View attachment 39092

Please don't partly quote my original posting and define it as bogus. Now it sounds like it was a statement of mine. It's obviously a question rather then a fact.

 

[Huevos]

BTW has the BBC HD transponder switched to the Astra 1N because the signal quality of that transponder has risen here from about 80% to 95-100%.

Please don't partly quote my original posting and define it as bogus. Now it sounds like it was a statement of mine. It's obviously a question rather then a fact.

No malice intended. I didn't recognise it as a question as there was no question mark, only the word order implied a question. The reason I part quote is so it is obvious what I am responding to, not to try to distort what someone else is saying.

 

[C0re]

Okay thanks. No hard feelings

 

[solly]

what freeuqncy use bbc hd now ?

 

[Huevos]

astra 1n not receiver in cyprus and israel
but astra 1kr we recevice 4 mter hd+ and ard and zdf hd
so how it posible 1kr 1 receiver and 1n now receiver ?

Solly, the beam that everyone is talking about on 1KR is a spot beam that is not currently in use. What you are currently receiving from 1KR with the 4m dish is the main pan-continental beam.

 

[Dan Dan]

looking at footprints ASTRA 2C then a BIGGER dish is needed to get DIGTAL PLUS SPAIN off astra in the islands,,,i def losing the plot here,i must have gone for pop corn sometine since this thread started

 

[Dan Dan]

ASTRA 2C satellite to satellite ASTRA1-position operation

The Luxembourg satellite operator SES has ASTRA1 this week at the satellite position at 19.2 degrees East ASTRA 2C satellite to use. ASTRA 2C satellite by the temporary introduction of the new satellite ASTRA 1E at the ASTRA2 at 28.2 degrees East position redundant.

On his new temporary site, the ASTRA 2C satellite services of some transponders of ASTRA 1KR satellite acquired. These are the transponders with vertical polarization transmit on frequencies 10.729 GHz, 10.979 GHz, 11.038 GHz, 11.097 GHz and 11.127 GHz. These are all the Spanish Digital + TV provider used.

With the relocation of some transponders of the ASTRA 1KR satellite to satellite, launched in 2001 ASTRA 2C satellite operator SES to energy savings of ASTRA 1KR satellite. Currently 27 of the available Ku-band transponders 32 of ASTRA 1KR satellite in use. Disabling the five transponders has nothing to do with technical problems. SES already predetermined that after about 1 / 3 of its expected lifespan is transponders on this satellite could be eliminated in order to ensure commercial operation throughout the expected life of the satellite ASTRA 1KR. This was launched in 2006.

from dutch mag ... i spot two errors anyone raise me on that