LD interlaced resolution

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mailmarshall

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#11218 10-Jan-2007 09:49

Hi
Just got connected up SKY with component cables on my Bravia S series Mark 2.

All I get is 576i as teh resoulation. IS this what most people have?? Dont have any DVD recorder etc..

I am sure the picture was slightly better when I was using SCART composite.

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#57440 10-Jan-2007 10:02

You state you have setup component cables then mention composite in the last line, which is it.

Sky as all other broadcasters on the 50Hz side of the planet (other than those do HD) transmit in 576i (visible 720x576pixels). As such the Sky STB will output standard 576i at 50fields/sec as does TVNZ or anyone else including all 50Hz DVD's.

The component connection simply means that you bypass all pal encoding/decoding processes that do limit access to the full 720x576 resolution, thus component is better than composite and S-Vid.

Cyril

sbiddle

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#57441 10-Jan-2007 10:03

Sky don't broadcast anything in HD. The only difference in picture quality will be as a result of the video output used.

mailmarshall

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#57446 10-Jan-2007 10:20

Cyril7 it was SCART composite but yesterday I got a SKY decoder that does component (DSR2000). I now use SCARt component as output from the SKY decoder to the TV in 16:9 mode.

Basically you guys have answered my question - we wont get SKY any better than 576i unless we get HD in NZ.

cyril7

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#57449 10-Jan-2007 10:30

Just to clarify, SCART composite or SCART Component is no different from RCA componsite or component, its just a connector, the electrical spec and performance capability is the same. And yes it is possible to pass HD component via SCART some LCD panels do that, as I said SCART is just a connector, the bandwidth requirements of HD are well inside the capablilties of the humble SCART connector.

As mentioned elsewhere, sky intend to do HD early next year, my bet is we will see Prime, and Movie channel and a Sports Channel go HD. As is the experience in UK they will run native HD material when available and upconvert the rest of the time, the exception to this is a movie channel where for sometime now movies are transfered from film to video as 1080sF24/25 and from their sub masters in 576i50 and 480i60 are made for DVD and broadcast release. So 1080 masters exist of most recent and current film/movie material.

Skys main OB provider recently put out tenders to build a HD van so expect most major NZ sport to be in HD plus there is plenty of sport from Aus, Europe and the US in HD that the sports channel can show. As for general broadcast material my bet is Sky will run a HD version of Prime, there is plenty of Network TV type programming coming out of the US, Aus and UK in HD to satisfy that one. There was talk that Sky would convert Prime FTA terrestial to a DVB-T mux and do that as both SD and HD, time will tell all is hearsay at this time.

Cyril

mixja

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#57521 10-Jan-2007 18:26

Any idea whether Sky will deliver HD over DVB-S or DVB-S2?

cyril7

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#57525 10-Jan-2007 19:07

My guess, S2, simply based on what every other NewsCorp operation is doing

Cyril

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Lostdave

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#57937 15-Jan-2007 14:26

Hi Guys, I'm after some advice from Cyril and thought anyone else might be interested. I have a new Bravia TV and am wanting to hook up my sky decoder to the Component inputs. I am wanting to run a long cable(10 meters) betwen the TV and the Decoder and been into Jaycar to look at cable options. I'm thinking a Scart connector, some RG6 coax (3 lengths) , with some gold RCA's and make it as long as I like? This should keep it all 75 Ohm? I'm guessing on using the RGB pins and the respective earths in the scart connector. Looking at the the threads so far I'll ned to check that my decoder has the correct upgrade to component outputs. Thanks Cyrill and Co.

cyril7

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#57942 15-Jan-2007 14:51

Dave, I dont know how you were intending on making the acuatal connections, but assuming you are soldering them might I suggest that you use RG59 rather than RG6. Reason being is that you want a cable that is easily soldered. RG6 normally has a alloy coated braid that is near impossible to cleanly solder, and is much harder to handle. RG59 will normally have a copper or tinned copper shield that is easy to solder.

Dont worry about the capability of RG6 over RG59, one is a 2GHz rated cable the other is rated to 1GHz, for video you only need 5MHz of bandwidth (ideally 20MHz for good phase response) so RG59 is well inside its performance rating.

Cyril

Lostdave

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#57946 15-Jan-2007 15:22

Hi Cyril,
Thanks for that. I was hoping you'd say that as the RG6 is a bit thick to go through the back of the scart connector(3 of them). On the scart I'm looking at pins 7, 11 and 15 and their grounds 5, 9 and 13. Anything else I should be aware about?

cyril7

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#57947 15-Jan-2007 15:34

Even 3x RG59 will be a struggle to get through the clamp, If it were me to save the stress get a SCART to component adaptor Jaycar PA3667 and just make three cables with RCA's at each end, the extra connections whilst best avoided are probably a better option unless you feel confident soldering and clamping the coax's in the SCART.

You could of couse modify the plastic backshell of the SCART plug doing away with the screw cable clamp and secure the three coaxs some other way.

As for the three circuits, yes they are the correct ones, remember G carries the Y channel, and the two chroma diff channels are R=Pr/Cr and B=Pb/Cb.

Also remember the the composite channel is also present and available when Component is selected. It is also present if RGB is selected as the composite channel provides sync as RGB has no sync on the RGB channels. Component however does carry sync on the G/Y channel but the composite remains available.

Cyril

Lostdave

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#57950 15-Jan-2007 15:54

Hi Cyril,
Thanks for that. The price of those monster cables is horrendous once they get longer and I wonder how much of a difference it makes. For the sake of the Coax and some connectors, its as good as any TV studio hooks up their video gear. There's a heck of a lot of hype that you have to weave your way around. Much appreciated Cyril.

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Lostdave

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#57959 15-Jan-2007 16:58

Before you go Cyril, one more question. I'm wall mounting my TV and am wondering about the connections that I'll need to terminate on the wall connector. HPM have some connectors that are both mains and F connector combined, so I'm thinking about making up some F connector to RCA for the TV to the wall(with Coax). Have you had any dealings with wall mounting TV's with component cables and any correspondernce about how the pros have done their wall connections (so the cables are hidden). RCA/Belling Lee connectors just seem a little dodgy as far as shielding goes vs an F connector. Thx Dave

cyril7

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#57962 15-Jan-2007 17:17

You can get F<>RCA adaptors, so you crimp an F on your cable had convert it to RCA female with the adaptor, a worthwhile thing. I also prefer to use Fconnectors on wall plates. If you use the PDL 600 series you can get a 3 or 4 or 6 hole blank plate and install F connector or RCA, speaker binding post, and bellinglee connector mechs to suit. That is what I normally use as it allows max flexiblity.

That said I think a basic old RCA for video is quite adequate in a domestic situation.

Cyril

Lostdave

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#57963 15-Jan-2007 17:26

Thanks Cyril. Much appreciated.

richms

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#57996 15-Jan-2007 23:29

I used RG6 CCTV cable - its like normal rg6 but its solid copper, then crimp on F connectors and put an F to RCA adaptor on the end. No point dicking around trying to put a RCA on by soldering. not able to get the braid attaching well and the plugs barely hang on.

Then put some colored heatshrink over the F and adaptor in the right color.

Richard rich.ms

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