15 KHz RGB to VGA

[Skippy]

The CGA/RGB input is a 15pinHD, so you'll need to make yourself a 23 to 15 monitor cable because the "proprietary adapter cable" they supply only changes the socket to an RGB DB9pin.

Also they're promoting the product as:

The only product in the market that supports true 16:9 output with native wide screen resolution at 1366x768 pixels for LCD TV or LCD/TFT monitor size larger than 17".

1366*768 is not an official true widescreen standard. Besides it states further down:

3 selectable >>>VGA<<< output resolutions: 640x480 pixels, 1024x768 pixels and 1366x768 pixels.

So basically you have to switch between the upscale you want and  as your source is only 4:3 your so called wide screen resolution is just gonna be a stretched 4:3 image to fit anyway.

Nowhere does it state either what "technology/chips" are being used in the filtering and re-building of the original source input to the upscaled output either.

As the amiga's RGB is old and pretty limited technology by todays standards, I personally doubt very much to expect very high results in the final image displayed on a HD LCD monitor.

Its just gonna look comparative to an output from amiga RGB to an RGB SCART LCD, in my opinion.

But then I'm just a bush kangaroo, so what do I know. ^_^

The only convenience I can see this product having is basically allowing you to 'plug n play' CGA inputs into VGA monitors hassle free.

Skippy.

[Skippy]

@AmigaPixel:

Yeah, you are absolutely correct. The original amiga RGB cable is 23 pin to 9pin female that would connect straight into the male 9pin "proprietary adapter cable".

I was thinking along the lines of the simplicity of one purpose built cable that connected directly to the monitor from the amiga.

Not a 'hotch potch' of several metres of amiga cable, an adaptor and then a further monitor cable comprising the integrity and I guess the sole intension of "upscaling" to a so called higher definition of video standard as claimed.

The other issue of concern I forgot to pick up on was:


# Auto detection of RGB inputs including RGsB (sync on G), RGBS, RGBH/V and RGBH+V composite sync with sync level above 2 vpp, 75 Ohm.

It doesn't state whether these built-in auto detection features include detection and correction of image positioning to monitor and if the gizmo works in a 'plug n play' fashion of determining what type of monitor is attached to calculate accurately where and how to if so centre the input source.

I mention is because I have several LCD monitor/tvs that when an amiga is connected say via RGB scart the monitor "recalibrates" the image to ensure its best fit and positioning on the screen. However, not ALL of the LCDs I have support this feature OR can get confused resulting in a "jumping" about image*.

So you could find yourself with an offset image. Furthermore if it does have support is it taking into consideration the overscan offsets or just finding the borders of an image to work from.

This may seem like nick picking but it is valid when your sat looking at an image either hanging off one side of the monitor or constantly bouncing about being recalibrated everytime the image changes on the screen. IE: *different DIWSTOP and DIWSTRT positions by the programmer.

Skipster.

[Skippy]

@AmigaPixel.

Those were some the issues raised in my mind and reasons why I didn't feel 'my' a1200 warranted a fancy high definition monitor and spending costly abouts on upgrading suite.

So myself I settled upon a LCD TV unit that I felt realistically 'improved' the appearance of my a1200 via
RGB SCART within the technological parameters and practical application of uses set out by my personal
requirements. So I chose to stay within the 15Khz range for cost and convenience.

I am glad I didn't buy one with out further research.

Well after all it is ones money investing into the Amiga.

But don't get me wrong, if I had the spare cash I'd certainly install an Indivision inside my miggy ;-)

Take care.

Skiptastic there mate.