Appendix D Ten-Code Signals for Police and Emergency Personnel - Ham and Shortwave Radio for the Electronics Hobbyist [Book]
J Huff on Twitter: "Site for police radio codes: https://t.co/fOyjHzYxEs (select state or region with dropdown) Helpful for #OSINT on realtime events when listening to a region on @Broadcastify https://t.co/2DmnHReTCz" / Twitter
10 codes | Police code, Police radio codes, Police radio
https://www.radiolabs.com/police-codes.html | Police radio codes, Police code, Police radio
Columbus PD Codes.xlsx - The RadioReference.com Forums
Police 10 Codes (Ten Codes) for Law Enforcement Radio
Putnam County (TN) - The RadioReference Wiki | Police code, Police radio codes, Police radio