Thread: DVB-S2 8PSK Jerkiness?

I am using Pansat 9000HD. It seems like ever DVB-S2 8PSk channel I tune to has some mild to moderate jerkiness. THe signal strength is good when this happens. It happens on both ku and C band. I haven't seen anyone discussion this so I decided to start this discussion. Is there anything that can be done such as getting a better LNB? Better satellite reciever? Or using a DVD-S2 computer card with a powerful video card?

I suspect a bigger dish would help. I frequently see things like that on the DVB-S2 channels, too, and I attribute it to lost data. Depending upon the FEC ratio, it can be very hard to capture and correct the datastream with smaller dishes. I haven't done any research, so this is just a guess.

Originally Posted by brentb636

I suspect a bigger dish would help. I frequently see things like that on the DVB-S2 channels, too, and I attribute it to lost data. Depending upon the FEC ratio, it can be very hard to capture and correct the datastream with smaller dishes. I haven't done any research, so this is just a guess.

I get that also on my CS 8000 when viewing the High bit rate S2 channels. It could be signal quality. But, i'm leaning more toward "lack of" processing power of the box. I don't know?

I am using a soild 10ft dish and the singal quality is in the 80's to 90's which is good. Also I forgot to mention it seem the channels have a symbol rate of 30000 and are either 9/10 or 5/6 FEC HD channels.

9/10 FEC can be tough to acquire and maybe you could touch up your aim. I can't explain why the 5/6 FEC channels would be a problem. There's always the possibility , already mentioned , of cpu power . Sometimes , though, there are problems with the uplink, that we can't control at all.

Originally Posted by brentb636

9/10 FEC can be tough to acquire and maybe you could touch up your aim. I can't explain why the 5/6 FEC channels would be a problem. There's always the possibility , already mentioned , of cpu power . Sometimes , though, there are problems with the uplink, that we can't control at all.

My aim is good. The signal is more than strong enough. I believe its the lack of cpu processing power on the pansat 9000HD. I wonder if this could be upgraded? The jerkiness is mild but can be a little annoying at times.

I doubt that upgrading the cpu, or changing the clock rate is an option. Do you know anyone locally with a Coolsat 8000? Trying one out on the same feeds might be informative. I use one of my CS8000's behind my Sathawk , for a similar reason, hi bitrate feed problems.

Originally Posted by brentb636

I doubt that upgrading the cpu, or changing the clock rate is an option. Do you know anyone locally with a Coolsat 8000? Trying one out on the same feeds might be informative. I use one of my CS8000's behind my Sathawk , for a similar reason, hi bitrate feed problems.

Does the Sathawk help?

No, the Sathawk sometimes gives me glitches, etc on Hi bit feeds, but the CS8000 plays them smoothly. That's my major complaint , at the moment, with the Sathawk, but I'm glad I got it. The hi bit feeds are still viewable, but with occasional glitches. If they were'nt so regular , it wouldn't be obvious. The Sathawk , with it's fast blindscan, is a very useable receiver.