Thread: 10-code History
05-16-1999, 12:54 AM #1stone35Firehouse.com Guest
I have been wondering why we use 10-codes. Specifically, why the number 10? If anyone knows let me, us, know.
Thanks in advance,
06-01-1999, 12:50 PM #2Vinny Del GiudiceFirehouse.com Guest
I don't have an answer but I thought you'd find it interesting that the early wireless telegraph systems used by ships at sea employed Q-signals. For example, QTH means What is your location? QRZ means please repeat message. What's more I think at least a few of the current FDNY 10-signals are based on the old fire alarm telegraph signals. For example, 10-75 for a full first alarm assignment is similar to the old telegraph signal 7-5, at least based on my reading of the FDNY signals. Regards. Vinny.
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