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Re: Apple video bandwidth question
On Aug 29, 3:21 am, Alex Freed <alex_n...@mirrow.com> wrote:
> Suppose we have a 7 MHz "bandwidth". Then by definition 7 MHz is a
> "corner" frequency that will be passed at -3 dB compared to low
> frequencies. If the bandwidth is say 5 MHz, if will have a level below
> that but definitely visible. Just blurry.
Of course if we want to be precise we'd have to mention passband and
stopband corners, but take a look at specs of AppleColor composite
monitor:
http://docs.info.apple.com/article.html?artnum=10292&coll=ap
Quote: "Video Bandwidth ... Text (Monochrome) 8.0 MHz NTSC".
Check also this:
http://mirrors.apple2.org.za/ftp.apple.asimov.net/documentation/Apple_II_Mono_Monitors.pdf
Quote: "Video Bandwidth ... Less than 3dB down at 10/12 MHz".