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This topic comprises 2 pages: 1 2
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Author
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Topic: Satellite receivers for live events -what do you use?
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Elise Brandt
Expert Film Handler
Posts: 160
From: Kuusankoski, FIN/ Kouvola, Finland
Registered: Dec 2009
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posted 06-28-2011 12:54 AM
My impression was exactly the same -that live is the important part to customers, and will add something to the event that recorded content will not have. For our site at least... after all, audiences differ greatly, and opera shows in cinemas are relatively rare here, only one big chain started it, then us (not chain and privately owned), then a second, smaller chain. They trust in live, we went recorded for the whole season except for the last one.
Everything I had heard before starting pointed to the live aspect being the important thing. Oddly enough, people did ask if our content was live or not, and when hearing no, it did not slow the tickets running out the door any. We did do only two shows per title, to keep the exclusivity factor in, surely. I thought I would hear more about "why isn't it live, when will there be live" I just heard... well, thank you's and praise for the content. It seems that for this particular audience we cater to, live isn't the thing, the experience is. After all, it's totally different if you just show the content, or build around it and make it bigger than the particular title you're showing. We're giving a red carpet treatment to every opera night, and pamper the customers silly. That might be why our non-live does so great.
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Carsten Kurz
Film God
Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009
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posted 06-28-2011 07:32 AM
Elise - this may look as a stupid suggestion - but in many countries, satellite TV is also considered as a hobby/DIY issue - so there are many books available on installation, setup,etc. You may look one of those up in a bookstore or Amazon to make yourself more familiar with terms, components, optimizing setup, analyzing problems, etc.
That will give you a much better background against the usual 'it worked last time, why not now?' situation.
- Carsten
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Jeff Kane
Film Handler
Posts: 74
From: corpus christi, tx
Registered: Jun 2011
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posted 07-05-2011 09:39 AM
Another matter to investigate beyond the modulation (DVB-S2) is the chroma subsampling. Most receivers can only receive 4:2:0, but some feeds are broadcast in 4:2:2. A 4:2:0 receiver tuned to a 4:2:2 broadcast may decode audio but provide no video, may show a 'green' screen, pixel garbage, or all of the above.
If you want a true 'non-consumer' receiver, you'll need to be looking at Tiernan, Alteia, Scopus, Tandberg, etc. These all cost major $$$ and are royal pains in the &&& to set up. From what you've said they also sound like overkill.
Supposedly the Azbox line can do DVB-S2 and 4:2:2 in 1080p, but I have no experience with them. It's not likely, but IS possible the test transmissions were done 4:2:0 but live was sent out in 4:2:2. Stranger things have happened. ![[Big Grin]](biggrin.gif)
Final thought? The dish size is great, but make sure you have more than a consumer LNB and that the dish is aligned as perfectly as possible. Consumer LNBs can have pretty considerable frequency drift with temperature, and feeds tend to be harder to lock than normal TV muxes, so frequency stability is important. Good luck!
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Randy Stankey
Film God
Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99
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posted 07-05-2011 10:32 AM
quote:
Pizza pans exactly what kind of dish is that and how do I tell if the ones we haveare fit only for baking pies?
Pizza pans are stamped out of metal, about 50-100 cm in diameter and, sometimes, people try to use them to receive satellite signals.
I understand cost constraints and that people think that it's easier to use small, lightweight dishes for satellite but it's a false economy when you're playing shows for paying customers. Cheap dishes might be okay for consumer use in the home but not for theaters.
The first dish we got for our satellites was a pizza pan. I tried to convince them to get a better dish but we got a pizza pan anyway. It received an "okay" signal. Within a few months, the dish blew down in a windstorm. It was a "See! I told you so!" moment that convinced them to buy a better dish.
The signal quality was much better and it has withstood several windstorms which were worse than the one that blew down the pizza pan.
We now have two dishes. First, for redundancy, in case one dish has trouble. Second, in case we need to receive another program, we can just have the backup dish pointed at another bird and we won't have to upset the other.
And, yes. The LNB is just as important as the dish. Cheap LNBs are not really cost effective when it all comes out in the wash.
My main point is that people tend to spend money on only what they can see. People can see the receiver. They can see the projector and they can see (hear) the sound system. But the dish sits on the roof where nobody can see it except the poor guy who has to climb up there to brush off the snow in the winter.
Because they can't see it, people tend to ignore the dish and they'll try cut costs by buying a cheaper one but, in reality, the dish is the most important part of the chain. Without a good dish, you can buy the best receiver in the world but it won't matter.
Moral: Don't buy cheap dishes.
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