Horizontal Frequency 30-81 kHz

[Ocelot85]

I got a Samsung Syncmaster monitor recently for viewing my old consoles on. But after checking its specs it has a Horizontal Frequency of 30-81 kHz where I was expecting something like 15-31 kHz. My question is What devices can it connect to that require an 81 kHz horizontal refresh rate?

[Fudoh]

What about a PC ?

1280x1024 at 75Hz comes to roughly 81kHz already...

[panzeroceania]

PCs can typically use as high a rate as you would like so yeah, that.

Although I have a question how does 75Hz come close to 81KHz

doesn't K = 1000? this is something I never understood about kHz, or is one horizontal rate and the other is vertical?

[RGB32E]

PCs can typically use as high a rate as you would like so yeah, that.

Although I have a question how does 75Hz come close to 81KHz

doesn't K = 1000? this is something I never understood about kHz, or is one horizontal rate and the other is vertical?

This should get you up to speed
http://en.wikipedia.org/wiki/Horizontal_scan_rate
http://en.wikipedia.org/wiki/Vertical_scan_rate

[Ocelot85]

So CRT screens have a higher horizontal refresh rate than LCD screens?

Also, why such a high rate? resolution requirement?

[Fudoh]

It's actually more or less the same. My 21" LCD which I use at my PC is spec'ed at 92khz, which comes to around 1200 lines at 70Hz. Most good 21" CRTs were also easily capable of displaying signals up to 95khz.

The refresh rate is the vertical frequency by the way