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- From: mrapple@quack.sac.ca.us (Nick Sayer)
- Subject: NTSC sync rate questions
- Message-ID: <fXQx2bD@quack.sac.ca.us>
- Organization: The Duck Pond public unix: +1 408 249 9630, log in as 'guest'.
- Date: 11 Jan 1993 20:46:24 UTC
- Lines: 21
-
- I have an NEC 5FG. It is a multisync RGB monitor. I also have the CPU
- boards for an arcade video game. It has NTSC timed analog RGB output.
- I want to know if the two will be compatable. I suspect they will, but
- I am confused:
-
- 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.
-
- 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? :-)
-
- --
- 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
-