TeachMeFinance.com - explain signal operating instructions
signal operating instructions 'signal operating instructions' is an military term. It means '(DOD) A series of orders issued for technical control and coordination of the signal communication activities of a command. In Marine Corps usage, these instructions are designated communication operation instructions'.
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Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English".