Revision as of 22:40, 21 May 2023 edit Laeredis (talk \| contribs) 268 edits Corrected and elaborated on the pre-1912 R and S codes, and repaired the relevant reference. ← Previous edit		Latest revision as of 23:07, 21 May 2023 edit undo Laeredis (talk \| contribs) 268 edits mNo edit summary
Line 7: * [[Q code]]: initially developed for commercial radiotelegraph communication and adopted by other radio services * [[QN Signals]]: published by the [[ARRL]] and used in [[Amateur radio]] * R and S brevity codes: published by the British Post Office in 1908 for coastal wireless stations and ships, ~~supplanted~~superseded in 1912 by Q codes<ref name="pre-1912">{{Cite web\|url=https://ac6v.com/rcode.php\|title=Pre-1912 Brevity Codes\|last=Anderson\|first=Scott\|date=2002-07-31}}</ref> * X code: used by European military services in wireless telegraphy * [[Z code]]: used in early radiotelegraph communication

Operating signals: Difference between revisions