2018年3月29日 · The exchange went basically as follows: "Any unit FCC". The field unit would give their call sign and say, "KA 4306". The dispatcher would usually respond, "10-4 Thank you. KMA 628" and then give the time. The "KMA" prefix was a law enforcement designation and the numbers distinguished the agency. For example, LAPD was KMA 367 and LASD was KMA 628.

2017年10月6日 · I'm wondering what the 'd stand for? (had, did, would, could or should?) Please tell me the things that can be used as the abbreviation 'd. Thank you so much.