GCR

GCR is a three-letter abbreviation with multiple meanings, including:

Great Central Railway
Group Code Recording
Grey component replacement – a topic in desktop publishing
Ghost-canceling reference – a special television signal that helps reduce the effects of multipath ("ghosting")

This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. If an article link referred you here, you might want to go back and fix it to point directly to the intended page.

Categories: Disambiguation | TLAs