RGB SCart and progressive scan

[norge]

Is progressive scan possibble from RGB scart? Can an rgb scart output 1080i/p or 760i/p? I thought it could if source output is so but I have my doubts due to a thread I have read in another section in this forum.
Is it limited when compared to component video?

Thanks

[sbowler]

Scart only outputs an interlaced signal, and component a progresive signal.

[norge]

Thanks so then a component video cannot give an interlaced output?

[sdb123]

Component can do both interlaced and progressive.

[creative-av]

What do you need to do norge?

Steve

[Stephen Neal]

The formal SCART standard only allows for interlaced RGB, S-video or composite to be carried - all at standard def only.

There are custom implementations that carry interlaced component via SCART (some DVD players and set top boxes allow for this) - and it is possible, electronically, for a SCART connector to carry higher resolution and progressive signals. However I know of no regular device that does this.

[norge]

None in particular....Well My humax 5400 output its signal via RGB scart and denon avr receivers such as the 3806 has no scart input...which means I cannot upscale the signal unless I buy something like a qed scart to component converter. Of course an iscan vp30 will do a much better job but at the moment I am not spending money in video scalers.

Plasma screens such as the pioneer 436XDE and LCD screens such as the Sony V series do they have an inbuilt scaler that can convert interlaced to progressive video output and upconversion as well? Do they actually do a good job as the iscan box or at least come close?

Thanks

And last...then an rgb scart can output 1080i and does it exist a video format 720i?

[Stephen Neal]

Originally Posted by norge

And last...then an rgb scart can output 1080i and does it exist a video format 720i?

Whilst it is technically possible to carry a 1080i analogue video signal over SCART (i.e. there is nothing to stop the pins carrying a video source of this spec) - I don't know of any equipment that does this.

720i doesn't exist as a video spec - the standard HD broadcast specs are 1080/50i or 1080/60i (sometimes called 1080i25 or 1080i30 - and also referred to as 1125) and 720/50p or 720/60p (or 750/50p or 750/60p).

(1080/24p, 1080/30p and 1080/25p are all valid HD production systems not used for transmission to homes)

(However there is confusion because the standard def 576/50i and 480/60i have a HORIZONTAL resolution of either 720 or 704 in many implementations. The use of 720 as a resolution horizontally in standard def and vertically in high def can be confusing!)

[Stephen Neal]

Having said that - the english pdf detailing the tech specs of the French Netgem HD DVB-T box suggests that it has an HDMI output for digital HD video, and uses the SCART for analogue component HD. However the French FAQ suggest the SCART is only SD...

(However as the box carries the official EICTA HDTV logo I don't know if this mandates component HD output or not)

[norge]

Thanks for all the info but...


Plasma screens such as the pioneer 436XDE and LCD screens such as the Sony V series do they have an inbuilt scaler that can convert interlaced to progressive video output and upconversion as well? Do they actually do a good job as the iscan box or at least come close?

Thanks

[Liam @ Prog AV]

All progressive displays have in-built deinterlacing and scaling otherwise how else would you see the picture!!!!

However, they aren't necessarily very good which is why products like the iScan exist. In fact I doubt there are any plasma screens which wouldn't see an improvement through use of a dedicated video processor