Monitor with BNC inputs

[supertimer@aol.com (Supertimer)]

I eventually intend to replace my dead AppleColor RGB monitor
and while looking through a video catalog of professional video
monitors, I saw models with "BNC inputs."  Are these
compatible with the 15Khz RGB output of the IIGS?  Thanks!

(I know about the RCA composite option, but that's totally
out of the question because of the poor quality of composite
out, especially the type of composite the Apple II makes.)