AVS › AVS Forum › Display Devices › Ultra Hi-End HT Gear ($20,000+) › D-cinema Equipment and Theaters › Pro sattellite recivers for cinemas
New Posts  All Forums:Forum Nav:

Pro sattellite recivers for cinemas

post #1 of 5
Thread Starter 
Hello
we have been showing various live events in our cinemas including the met broadcasts


the equipment we are using is at the moment
- topfield hd7710 receiver
- DVDO edge scaler
- an old cinemacanica CMC3 digital cinema projector
- DMA8 connected through optical for audio
- 3 meter satellite dish

i belive i have almost made this as foolproof as possible but
the weak link in this equipment in my oppinion is the topfield receiver
it has occasionally frozen especially when it is recording and i simply don“t trust equipment designed for home use to handle shows like these that are usually sold out.
i am looking for a more professional solution.

so here are the basic things i am wondering about that might be good for a receiver solution

- how to handle recording, does a professional box with a built in recording and playback exist or would we always need a seperate box for this ?
- rack mounted
- hdmi or dvi output
- SDI output would also be nice as an option although our current projectors already have the sdi ports in use. (perhaps there is some kind of switch)
- network connectable
- 3d compatible so when the time comes it will be possible to display live 3d broadcasts
- optical or coax sound output for DMA8

probably some other stuff i am forgetting but probably get were i am going with this, we definatly need to stop using these home cinema reciviers since live events will only grow.

thanks
post #2 of 5
Big names in head-end equipment are:
Cisco (Scientific Atlanta)
Ericsson (Tandberg TV)
Harmonic (Divicom, Scopus)
Motorola (GI)
Thomson Grassvalley

There are many small players popping up, but these have been around since they formed Digital Distribution/Broadcast in the late eighties, early nineties. Unfortunately professional IRDs tend to offers less features in the storage and networking areas, distribution to remote (play-out) servers generally is done as datadistribution, using receivers/servers not well suited to live video reception.

Why not email Mark Schubin directly, for tips on receivers. He deliberately uses regular interlaced DVB broadcast links in his MET distribution to be able to work with regular broadcast equipment. Most of the Scandinavian community houses that show the opera's in Sweden are not even using real theaters and real digital cinema projectors, and they all work with non professional, or even commercial grade receivers (there was a story on the project in Sirius latest, and probably last, as it was just integrated into SES Astra, printed newsletter). In Canada Bell ExpressVue also supplies consumer grade receivers.

My tip would be to split the signal and use two boxes, one to record, one for the live show to the projector. That way you don't overload the box, as you write that's when the box gets hiccups. Write it off at 100 euro's per month and you have written it off by the time you have found your prefered professional receiver.

Are you going to attend IBC? If you do, you may want to look into something like this. Unfortunately DVB-S2 is limited to QPSK, so that might be an issue, as most HD feeds are using 8PSK. http://www.dveo.com/broadcast-system...ime-Delay.html
post #3 of 5
Quote:


My tip would be to split the signal and use two boxes, one to record, one for the live show to the projector. That way you don't overload the box, as you write that's when the box gets hiccups.

I was going to recommend a similar thing. I was basically going to suggest having two boxes into a video switcher so you could easily switch to a redundant box should the main one fail or glitch up. You should be able to do this by just having two into two inputs on the DVDO so you have a backup.

I'm not certain whether using one to "record" and one just to watch would necessarily matter unless you got a box which specifically *not* a DVR. Because AFAIK most DVRs are basically recording what you're watching anyway to allow you to pause and do instant replay and the like. It is worth exploring, however, but just a thought to consider that if you have a DVR, just not recording the program doesn't necessarily mean it's not recording on its own anyway temporarily...
post #4 of 5
Googled the modelnumber, seems it is PVR Ready, with a SATA connector instead of a build in HDD. Not uncommon in retail DVB-S/S2 receivers.
post #5 of 5
Thread Starter 
Thanks all for your suggestions,
i guess to begin with the suggestion of having 2 seperate boxes would be enough while i work on finding a better solution
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: D-cinema Equipment and Theaters
AVS › AVS Forum › Display Devices › Ultra Hi-End HT Gear ($20,000+) › D-cinema Equipment and Theaters › Pro sattellite recivers for cinemas