Article View: sci.electronics
Article #17015Re: NTSC sync rate questions
From: Dale Ulan
Date: Tue, 12 Jan 1993 04:53
Date: Tue, 12 Jan 1993 04:53
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1565 bytes
mrapple@quack.sac.ca.us (Nick Sayer) writes: >It's my understanding that the vertical retrace rate of NTSC is 60 Hz, >and that it is interlaced, yielding 30 pictures per second. But the >monitor says 55-90 Hz vertical sync rate. That sounds compatable >to me. Yes, that's good. >It's my understanding that the horizontal retrace rate of NTSC is >14 kHz. The monitor says that its acceptable range is 27-79 kHz. >Now 14 x 2 is 28, but am I reading too much into that coincidence? >Am I wrong about the NTSC horizontal rate? Or is NTSC too low-res >for such a fine monitor to deign to display? :-) This is not good... The NTSC horiz scan rate is 15.7 kHz, which is out of the range of the monitor. >-- >Nick Sayer <mrapple@quack.sac.ca.us> | "Turn around. Stick it out. >N6QQQ @ N0ARY.#NOCAL.CA.USA.NOAM | Even white boys got ta shout: >+1 408 249 9630, log in as 'guest' | Baby got back!" >PGP 2.1 public key on request | -- Sir Mixalot ----- Dale Ulan VE6DAU ulan@ee.ualberta.ca Computer Eng. Undergrad
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Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!rutgers!micro-heart-of-gold.mit.edu!uw-beaver!cs.ubc.ca!unixg.ubc.ca!kakwa.ucs.ualberta.ca!ee.ualberta.ca!ulan From: ulan@ee.ualberta.ca (Dale Ulan) Newsgroups: sci.electronics Subject: Re: NTSC sync rate questions Message-ID: <ulan.726814432@ee.ualberta.ca> Date: 12 Jan 93 04:53:52 GMT References: <fXQx2bD@quack.sac.ca.us> Sender: news@kakwa.ucs.ualberta.ca Organization: University Of Alberta, Edmonton Canada Lines: 26 Nntp-Posting-Host: bode.ee.ualberta.ca