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This file contains many of the radio codes & signals you hear used on the air. The information has been gleaned from many sources and since the only way to get this information is to listen and record what the radio codes and signals are encountered, there may be some differences in what is presented here from what you might believe the code or signals is used for. The data is arranged alphabetically by agency name. You can help in this effort. You can simply click on the link above to submit your information, or you can mail your information to us at: National Communications P.O. Box 291918 Kettering, OH 45429 This information is presented as a research tool courtesy of National Communications Magazine. Remember the site is free for you to use, but then there is really nothing that is free of charge. The magazine supports the web site, so please consider supporting the magazine with a subscription. With an annual subscription of $21.00 you will also receive access to our on-line 4 Million frequency searchable databases. We also have a site dedicated to Trunked Frequencies which is also available to you at no charge. You can look up frequencies by city/state You can look up frequencies by frequency/state You can print up the list of frequencies You can email a search to yourself to use in Excel or Scancat

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CHATTANOOGA CITY & HAMILTON COUNTY POLICE CODES:
400  Block City                       444  Wrecker
401  Eat                              445  Indecent Exposure
402  Nature Call                      446  Burglary Alarm
403  Call Sergeant                    447  Traffic Tie-Up
404  Traffic Violator                 448  Suicide Or Attempted Suicide
405  Call Police Clerk                449  D.O.A
406  See A Complainant                450  Call Home
407  Out Of Service                   451  Warrant Service
408  In Service                       452  Traffic Patrol
409  Purse Snatched                   453  Car Or Truck Entered
410  Shoplifter                       454  Theft Report
411  Drunk                            455  Demonstration
412  Fight                            456  Riot
413  Wreck                            457  Abandoned Children
414  Prowler                          458  Lights (traffic/street)
415  Juveniles                        459  Car Broke Down
416  Shooting                         460  Repairs (city shop/elsewhere)
417  Cutting                          461  Service (wash/lube rack)
418  See A Party                      462  Radio Shop (radio repair)
419  Burglary In Progress             463  Break
420  Ambulance                        464  Court (city or criminal)
421  Fire                             465  Step Location
422  Hold Up                          466  Investigate Person Down
423  Public Service                   467  Door Open
424  House Burglary                   468  Assist A Citizen
425  Transport Prisoner               469  Property Damage
426  Business Burglary                470  Deceptive Practice
427  Sex Crime                        471  Assault
428  Auto Registration                472  School
429  Location                         473  Found Property
430  Disorder                         474  Accidental Injury
431  Improperly Parked Auto           475  Arson Or Attempt
432  Abandoned                        476  Lost Property
433  Suspicious Person                477  Run Breathalyzer Test
434  Missing Person                   478  Child Abuse
435  Flat Tire                        479  Request Back-Up Unit (not a 443)
436  Escort                           480  No Units Available At This Time
437  Working Traffic                  481  Stand By To Copy
438  Stolen Auto                      482  Obstruction In Roadway
439  Stolen Motorcycle/Bike           483  Outstanding Warrants (felony/
440  Robbery From Person                   misdemeanor)
441  Lunacy                           484  Special Weapon Unit Requested
442  Bomb Threat                      485  Overdose
443  Officer In Trouble               499  Arrive At Scene

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KNOXVILLE POLICE & KNOX COUNTY SHERIFF CODES:
10-11  Temp Out Of Service            10-60  Attempted Suicide
10-14  Escort                         10-61  Suicide
10-15  Prisoner In Custody            10-62  Murder
10-16  Pick Up Prisoner At .....      10-63  Kidnapping
10-17  Serving Warrant At....         10-64  Rape
10-19  Return To Station              10-65  Attempted Rape
10-21  Call Station By Phone          10-66  Business Burglary
10-22  Disregard/Cancelled            10-67  Residential Burglary
10-23  Escape Prisoner                10-68  Vehicle Burglary
10-24  Traffic Problem                10-70  Shoplifting
10-25  Officer Initiated/Traffic Stop 10-71  Forgery/Fraud
10-27  Vandalism                      10-72  Riot
10-32  Need Breath/D.W.I Test         10-73  Roadblock
10-35  Confidential Info              10-74  Lost/Found Property
10-38  Sick Person                    10-75  Deliver A Message To....
10-39  Injured Person                 10-76  Do You Have Traffic For Me?
10-40  Hostage Situation              10-79  Disaster/Tornado/Plane Crash
10-41  Missing Person                 10-80  Cutting Scrape
10-42  Criminal Trespassing           10-81  Shooting Scrape
10-43  Investigation                  10-82  Disorderly Conduct
10-44  Stolen Vehicle/Boat/Motorcycle 10-83  Domestic Trouble
10-45  Wreck/Property Damage          10-84  Juvenile Problem
10-46  Wreck/With Injuries            10-85  Disturbance
10-47  Send Ambulance                 10-86  Fire
10-48  Send Wrecker                   10-87  Mental Person
10-49  Drunk Driver                   10-89  Indecent Exposure
10-50  No Traffic Here                10-90  Suspicious Person
10-51  Strong Armed Robbery           10-91  Dead Person
10-52  Armed Robbery                  10-93  Molester
10-53  Hit & Run                      10-94  Assault
10-55  Larceny                        10-95  Firecrackers
10-56  Prowler                        10-96  Property Check
10-57  Alarm                          10-97  Arrived On The Scene
10-58  Public Drunk                   10-98  Assignment Completed
10-59  Fight                          10-99  Bomb Threat

CODES:
Code A  Report Submitted              Code N  Unfounded
Code B  Unable To Locate Complainant  Code O  Officer Needs Assist
Code C  Unable To Locate Address      Code P  Handled By Another Agency
Code D  Unable To Locate Suspect      Code Q  In Service
Code E  No Police Action              Code R  Message Delivered
Code F  Problem Solved                Code S  Left A Note
Code G  Advised                       Code T  Items Recovered
Code H  Vehicle Checked O.K           Code U  Towed
Code I  Person Checked O.K            Code V  Marked Items
Code J  Property Checked O.K          Code W  Transport To Other Agency
Code K  Verbal Warning                Code Y  Sign The Books
Code L  Citation Issued               Code Z  Cancelled
Code M  Arrest Made

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METRO NASHVILLE/DAVIDSON COUNTY POLICE DEPARTMENT CODES & SIGNALS:


SIGNALS:
1   Implement contingency operation  9   Disregard last transmission
2   Invisible deployment requested   10  Rush - quick action desired
3   Confidential radio Transmission  11  Switch to secondary channel
4   Report to station/office         12  Switch to countywide channel
5   Advise if personnel OK           13  Switch to assigned channel
6   Call by telephone (specify)      14  Switch to records channel
7   All units stay clear of area     15  Switch to C.B. transceiver
8   Meet a party                     16  Stop all radio transmissions

TEN CODES:

10-1   Receiving poorly              10-64  Corpse or DOA
10-2   Receiving well                10-65  Dangerous/injured animal
10-3   Administrative/spec. assign.  10-66  Bomb scare
10-4   Acknowledgement               10-67  Rape
10-7   Out of service                10-68  Kidnapping
10-8   In service                    10-70  Burglary (residential)
10-9   Repeat transmission           10-71  Burglary (non-residential)
10-10  Out of service, subj to call  10-72  Item/vehicle is stolen
10-13  Consider suspects dangerous   10-73  Hazardous liquid/gas leak
10-16  Transport prisoner/subject    10-75  Missing person
10-20  What is your location         10-77  Gang activity
10-28  Check vehicle registration    10-78  Criminal/vice activity
10-30  Check for warrants/record     10-79  Occult activity
10-32  DUJI test required            10-80  Child abuse
10-35  Mentally ill person           10-85  Prisoner escape
10-37  Send back-up                  10-87  Safety hazard
10-40  Suspicious person             10-88  Investigate 911 hang-up
10-41  Domestic disturbance          10-89  Drowning
10-42  Intoxicated person            10-92  Fixed post - traffic
10-43  Want offiver for assitance    10-93  Traffic violation
10-44  Disorderly person             10-95  Meal break
10-45  Accident, property damage     10-96  Tavern check
10-46  Accident, personal injury     10-97  Arrived on the scene
10-48  Request wrecker               10-98  Assignment complete
10-49  Vehicle blocking alley/drive  10-99  Give complaint number
10-50  Theft (specify type)
10-51  Cutting or stabbing           1000 CODES:
10-52  Shooting                      Code 1000  Bank robbery
10-53  Holdup or robbery             Code 2000  Plane crash
10-54  Person with a weapon          Code 3000  Barricaded suspect/specify if
10-57  Fight/assault                            with hostage
10-58  Prowler                       Code 4000  Sniper
10-59  Exposure of person            Code 5000  Personnel is serious situation
10-60  Blood run                     Code 6000  Riot/disorderly crowd
10-61  Fire call                     Code 7000  Train derailment
10-62  Person screaming              Code 8000  Explosion
10-63  Suicidal person

DISPOSITION CODES:
1   M.P.D. report completed
2   Arrest - custodial/citation
3   Citation - traffic
4   Assisted citizen
5   Gone on arrival
6   Assited other unit
7   Advisory/notice form given
8   Advised in civil case
9   Suspect warned
10  No response
11  Disregard Signal 9
12  Location/building secure
13  False call
14  Assistance refused

INCIDENCE DISPOSITION CODES:
A   Alarm
B   Bank/security escort
C   Complainant/victim
D   Domestic disturbance
E   Emergency escort
F   Felony
J   Juvenile
M   Misdemeanor
P   Psychological evaluation
R   Traffic radar used
S   Suspect/subject
T   Traffic/directed traffic
V   Vehicle assistance
W   Warrant assistnace escort

CALLS FOR SERVICE RESPONSE PRIORITY CODES:

A   Alarm
P   In progress
R   Report

CLASSIFICATION IDENTIFIER CODES:

J   Juvenile
E   Emergency
V   Vehicle
C   Cancellation
M   Medical problem

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TENNESSEE STATEWIDE AMBULANCE RADIO CODES:
Cardio-Pulmonary
1  Airway Obstruction       2  Respiratory Arrest      3  Cardiac Arrest

Trauma:
6   Shock                             20  Chest Injury
7   Hemorrhage, Uncontrollable        21  Back Injury
8   Internal Injuries                 22  Abdominal Injury
9   Evisceration                      23  Pelvic Injury
10  Wound, Gunshot                    24  Genitalia Injury
11  Wound, Stab                       25  Genitalia Injury
12  Multiple Fractures                26  Arm Amputation
13  Cuts, Head                        27  Arm Injury
14  Cuts, Body                        28  Arm Broken
15  Cuts, Extremity                   29  Leg Amputation
16  Head Injures                      30  Leg Injury
17  Eye Injury                        31  Leg Fracture
18  Neck Injury                       32  Hemorrhage Controlled
19  Shoulder Injury                   33  Bruises And Abrasions

Medical & Environmental Emergency:
36  Anaphhylactic Shock               48  Mental Disturbance
37  Heart Attack                      49  Nervous Condition
38  Poisoning Ingested                50  Pneumonia
39  Poisoning Inhaled                 51  Stoke
40  Drug Overdose                     52  Asthma
41  Burn, Chemical                    53  Appendicitis
42  Burn, Radiation                   54  Insect Bite
43  Burn, Thermal                     55  Snake Bite
44  Convulsions                       56  OB (hemorrhage/miscarriage)
45  Epileptic Seizures                57  OB (labor)
46  Diabetic                          58  OB (delivered
47  Kidney Problem

Patient Description:
61  Unconscious                       69  Intoxicated (alcohol)
62  Semi-Conscious                    70  Unruly
63  Chest Pain                        71  Drowning
64  Dyspnea                           72  Possible Organ Donor
65  Emphysema                         73  Possible Death On Arrival
66  Abdominal Pain                    74  Rape
67  Sick                              75  Suicide
68  Intoxicated (drug)

Care Codes:
76  CPR In Use                        79  Check Up
77  IV In Use                         80  Convalescent
78  Oxygen In Use

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TENNESSEE STATEWIDE POLICE CODES:
Signals:
1   Call Your Post                    7   Emergency--Serious Situation
2   Call Headquarters                 8   Meet
3   Change Channel, Traffic From__    9   Disregard
4   Report To Headquarters            10  Rush--Quick Action Desired
5   Report To Your Post               11  Info Requested Confidential
6   Call ____ By Telephone            12  Reply Via Phone, TWX, CW, Etc.

10-Codes:
10-01  Receiving Poorly               10-49  Driving While Drunk
10-02  Receiving Well                 10-50  No Traffic Here
10-03  Stop Transmitting              10-51  Driving Without License
10-04  Acknowledgement                10-52  Armed Robbery
10-05  Relay                          10-53  Hit & Run
10-06  Busy                           10-54  Arrest & Hold For
10-07  Out Of Service                 10-55  Kidnapping
10-08  In Service                     10-56  Rape
10-09  Repeat                         10-57  Overweight Truck
10-10  Out Of Service, Subject Call   10-58  Public Drunk
10-11  Dispatching Too Rapidly        10-59  Lunacy
10-12  Officials/Vistors Present      10-60  Missing Person
10-13  Advise Weather Conditions      10-61  Suspicious Person
10-14  Convoy Or Escort               10-64  Net Free
10-15  Prisoner In Custody            10-65  Clear For Message Broadcast
10-16  Transporting Subject           10-66  Bomb Threat
10-17  Advise Road Conditions         10-67  Hostage Situation
10-18  Complete Assignment ASAP       10-68  Barricaded Subject
10-19  Advise Traffic Conditons       10-69  Weapon Involved
10-20  Location                       10-70  DOA
10-21  Call This Station By Tele      10-71  Demonstration
10-22  Eating                         10-72  Riot
10-23  Nature Call                    10-73  Roadblock
10-24  Trouble At Station             10-74  Blood Run
10-25  Do You Have Contact With___?   10-75  Plane Crash
10-26  Permission To Leave Assignment 10-76  Do You Have Traffic For?
10-27  Check Driver's License         10-77  Radio Repair At _____
10-28  Check Vehicle Registration     10-78  Car Repairs At _____
10-29  Check Stolen/Wanted            10-79  Car Wash At ______
10-30  Against Rules                  10-80  Stationery Observation
10-31  Hit 10-29, Safe To Copy?       10-81  Stopping Violator
10-32  Breathalyzer                   10-82  Stopping Suspicious Vehicle
10-33  Clear For Emergency Traffic    10-83  Assit(ing) Motorist
10-34  Officer In Trouble             10-84  Assit(ing) Citizen
10-35  Confidential Information       10-86  Abandoned Vehicle
10-37  Operator On Duty               10-87  Improperly Parked Vehicle
10-38  Request Backup, Not 10-34      10-88  Obstructing Roadway
10-39  Request TBI Agent              10-89  Disable Vehicle
10-40  No Units Available             10-90  Fire Apparatus
10-41  Civil Defense Test             10-92  Rescue Unit
10-42  Backup Sheriff Or P.D          10-93  Helecopter
10-43  Want Officer--Investigation    10-94  Tactical Unit
10-44  Stolen Vehicle                 10-95  K9 Unit
10-45  Auto Wreck--Property Damage    10-96  Radio Test
10-46  Auto Wreck--Injury             10-97  Arrived At Scene
10-47  Send Ambulance                 10-98  Finished With Last Assignment
10-48  Send Wrecker
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