Dark and Light Horz. Bands in video from SAT TV

[usernamehere]

I am trying to capture video from my satellite reciever to my PC.
I have ATI AIW 9500 and trying to capture via S-video.
I had a problem first with a humm in the audio, bought a $16.00 car audio isolator, took care of that problem. But now the video I think has the same ground loop problem. So looking for a video isolator I found some but they are in the $10,000.00+ range. Does anyone know a cheaper video isolator around the $20.00 range or another solution?
Also I was told to buy a UPS battery back-up system for the computer and hook up the Sat reciever to it also but that did not work 100% I would say it did help 50% though and seemed to take out all of the interference I had with the 2.4 gig phone system and other interference I was getting.
Thanks

[NightWing]

Going to sound strange but here goes.

1) Is everthing pluged into the same outlet even going through a few powerstrips? If not how are thing pluged in. If using cheeters DONT!

2) Have you check the AC outlet(s) for polarity and ground. A cheep tester will do. One of the three light afairs will do.

3) Do you get shocks off of outlets?

You should not bee seeing that much hum and buzz. Sounds like a ground/wiring problem with the AC lines but can be wrong.

[usernamehere]

yes everything is plugged into the same UPS back-up protector.
and all the electrical outlets are fine.
the problem is a ground loop problem which occurs in all PC - Audio -Video hook-ups, it has to do with the step down transformers inside the electronic systems, and actually is more noticeable and bothersome in highend equipment. I tested this theory in a cheap GatWae computer and it was true, not much of a problem but picked up more interference from outside sources.
My bottom line to this problem is asking if anyone knows where I can buy or if anyone knows how to build a video isolator alot cheaper, as most of the video isolators that correct the problem I have run in the 1,000+ range.
Here is an example of what I am talking about, http://www.provideo.com.au/vi-100.pdf

[SHS]

Just wondering what satellite reciever are you using?.

[NightWing]

Those board are expensive due to keeping a very complex signal that ranges from DC to a few Mhz while isolating the signal. Any thing in the 20 dollar range I would not trust if they did make such an item.

What was the other interference?

What test equipment have you use to check thing out?

[usernamehere]

The satellite reciever I am using now is 5th generation RCA DRD4200.

The other interference I had comes from the things operatinf in the 2.4 gig range, it included the cordless phone, went back to 900MHZ, also the alarm and video surveilance system which also operate in the 2.4 gig range, I have moved the reciever of the alarm system further up the warehouse and now seems to not interfere with anything.
I also had a Skodic wire EDM machine connected to this computer, It operates on 3 phase 440Volt AC and always caused interference until I added the Back-UPS adapter.
Now that I have eliminated those problems I think I just have a ground loop problem.
A couple of years ago someone on here had the same problem, and some guy gave some simple schematics on a video isolator and built it from R Shack parts and the other person that had the problem tried it and it worked. If anyone knows who that may have been I would like to know how to get in touch with him.
Thanks

[pkosta]

what software are you using to capture?
is it divx or mmc?
i get this problem with dtv with virtual dub , if you use high definition capture this problem is gone,
if you use mmc you should not see any of this with mpeg 2 or 1.

[NightWing]

Am a bit worried about the little 3 phase 440 AC item. Have you disconnect that and see if your problem goes or is lessen.

[cplevel42]

usernamehere, I have the answer to your problem. I was experiencing the exact same problem as you. I purchased a high end video converter that is made for PAL to NTSC conversions or visa-versa. Also does SECAM to PAL or NTSC. This unit also acts as the BEST video stabilizer I have ever seen. Its NOT a fluke. I know two other people who own this unit and it works the same way every time. It will completely eliminate any lines and noise distortion caused by ground loop. Give it a try! See it here. http://www.220giftcenter.com/cmd850.htm

[blank_dog]

Might be a late with the reply, but I ws just trawling the forums as I had the same problem. Rolling bands on the video. And I just solved my problem

I had everything plugged into the same powerstrip, but after reading around on the internet, I tried plugging in the cable feed lead from outside the apartment into the surge protection on the powerstrip and the output to the cable box. NO ROLLING BARS !!!!!!

Apparently, the cause for me was the the earthing of the cable box was out of sync. If you haven't already found a solution, then try this. It worked for me. BTW, the powerstrip was about $30 from Costco, so didn't break the bank either.

bd.