User:PipesGouveia617

z code review (like Q Code and X Code) z code scam is a z code set of codes employed in CW, TTY and RTTY radio communication. Actually, there are completely different sets of zcode review: one originally developed by Cable & Wireless Ltd., zcode for commercial communications in the early days of wire and radio z-code communications, another one independently developed by NATO forces later for military needs and use. The NATO Z Code remains in use these days, and is revealed within the unclassified document ACP-131. There are different set of codes internally employed by USSR's military and alternative operating agencies. The old C&W Z Codes don't seem to be widely used these days.