Help Required 9e ka-sat

[Captain Jack]

You'll get a couple of data transponders but that's about it as far as I understand. There are 4 bands in the Ka spectrum, just like there are a few in the Ku, and this LNB covers just one of them.

 

[Archived-1]

You'll get a couple of data transponders but that's about it as far as I understand. There are 4 bands in the Ka spectrum, just like there are a few in the Ku, and this LNB covers just one of them.

Thank you CJ, I think I have got it that LNB will only work on the beam below, never mind worth the ask.

 

[timo_w2s]

Thank you CJ, I think I have got it that LNB will only work on the beam below, never mind worth the ask.
View attachment 64524

Well that's the only beam carrying TV channels as far as we know, the rest of the beams are mostly sat Internet data or even worse just null packets, so not worth looking at.

 

[Archived-1]

Looking more into this, there are many factors why its not receivable, its made my head spin but I think I understand it,

The Magenta rings are contours of spot signal power.
The coloured spots are official main service areas
Spots of same colour use the same mix of frequency and Polarisation
The first white ring indicate contour of what a published service area might include with a still “normal” size dish (80cm to 110cm) The outer white ring is low signal needing very large dish (1.2m to 2.5m) as it overlaps same settings of Frenc Calais spot. It must be low enough to cause no interference. The spots come from the SAME satellite, so along a line at tangent (purple line) to the two lime circles gets equal signal from both feeds (spots) no matter how big the dish is. Because it’s the same satellite. In fact of the four dishes on the satellite, it’s two separate offset feeds on the same dish. You can only separate the signals enough, reliably, by moving within the Irish or French Blue circles (with Lime fill) along the line between their centres. If the symbol rates, power and drop off of signal from France is enough that Co.Down coast to Ballycastle in Co. Antrim gets only just low enough interference to work on Irish Spot, then the red line marks the edge of possible Irish reception, but only if the French Spot has a similar carrier. As the symbol rate is lowered and frequency shifted, then the Red and Purple lines move toward the French spot. Conclusion is that if there is no interfering French signal a large dish might work as far as UK Midlands. If there is a French Calais signal overlapping the Saorsat carriers, then no matter what size dish, the coverage is limited to the Welsh coast.
So the coloured spots on the Ka-Sat maps don’t represent footprints, but service areas. A foot print (signal coverage) has contours of signal strength.
This information is from a longer article on techtir.ie
read more.
http://www.saortv.info/satellite-saorsat/saorsat-reception/

http://www.techtir.ie/saortv/saorsat-coverage

 

[Vipersan]

I just find it interesting that I am on the edge of two beams, thinking about it I have a dish to take down and I am quite sure it has a KA lnb on it, first port of call I think.
View attachment 64523

I'm in a similar position to you Martin ...just a bit more West ..and if it hadn't been for those other two beams ..there was just a chance of Saorsat on a big dish at my location.
..back when the FEC was 1/2 that is ..
Note though ..we don't have a beam of our own ....
I suspect we'd be fringe Scottish beam seasoned with a Dash of French .
rgds
VS

 

[Archived-1]

I'm in a similar position to you Martin ...just a bit more West ..and if it hadn't been for those other two beams ..there was just a chance of Saorsat on a big dish at my location.
..back when the FEC was 1/2 that is ..
Note though ..we don't have a beam of our own ....
I suspect we'd be fringe Scottish beam seasoned with a Dash of French .
rgds
VS

Reading what I have put above VS the dish size is not the problem, its been to close to 2 beams that's the problem /3 in your case?

(The spots come from the SAME satellite, so along a line at tangent (purple line) to the two lime circles gets equal signal from both feeds (spots) no matter how big the dish is.)

 

[Vipersan]

Reading what I have put above VS the dish size is not the problem, its been to close to 2 beams that's the problem /3 in your case?

(The spots come from the SAME satellite, so along a line at tangent (purple line) to the two lime circles gets equal signal from both feeds (spots) no matter how big the dish is.)

Indeed Martin ..I am aware of all this ..having spent much time and effort in the past trying for Saorsat ..
The point I was making was that with the other beams turned off I'd still be out of Saorsat footprint ..but might have stood a chance with a very large dish and no interference from the other beams ..
back when the FEC was 1/2 ..but now 2/3 so even more difficult ...
Like it wasn't already..
lol

 

[Archived-1]

Thinking about it VS, a smaller dish could be more successful with a offset dish, you have less chance of pulling two beams in ?, worth a try in my eyes ?.

 

[Vipersan]

Thinking about it VS, a smaller dish could be more successful with a offset dish, you have less chance of pulling two beams in ?, worth a try in my eyes ?.

Tried this too ,,
had the inverto dual on a 60 cm for a long time ..
Probably the best results I ever had ...but still no success ..
Back then the power level was higher and the FEC lower..
I even had a pretuned channel list sent me from Ireland for the F15 ..
Made no difference ,,
In the end I carved up the Inverto for its feed ...and without any reservations as I knew I'd tried everything possible..
..and I wanted to get _something_ out of the purchase..
;)
Go for it buddy,,
PLEASE prove me wrong..
lol

 

[Archived-1]

I thought you would have looked at all angles VS, I don't think its a point of proving someone wrong, its been in the right place .

 

[JOHN896]

As my 1.2m is fixed on 9 east all the time just for ka band,i have not seen any drop in signal at all.

 

[oscar2]

As my 1.2m is fixed on 9 east all the time just for ka band,i have not seen any drop in signal at all.

No difference here either with the change of FEC on the West Wales coast.
Regards

 

[solly]

New channel start on ka sat after long time

 

[Channel Hopper]

New channel start on ka sat after long time

RTE on 9E

A new TV channel is included: Cúla4 (SID:5108 VID:5106 AUD:5406 iri) 544x576, 16:9, 128kbps, 48000 Hz A new radio station is turned on: 2rn (SID:5106 AUD:5229 iri) 128kbps, 48000 Hz

www.satellites.co.uk