RADIO FACTS AND TRIVIA

1950's Radio Code Signals
10-1   Call your command
10-2   Report to your command
10-3   Call dispatcher by telephone
10-4   Acknowledgement (OK)
10-5   Repeat message
10-6   Stand by
10-7   Utility trouble-Emergency responding (Specify gas, electricity, etc.)
10-8   Utility trouble-See if Emergency is needed (Specify gas, electricity, etc.)
10-9   Alarm of fire
10-10  Unnecessary call
10-11  Need additional car (specify if Sergeant's car)
10-12  Arrest made-prisoner to station house
10-13  Assist patrolmam
10-14  Gone on arrival
10-15  Out of service-precinct assignment
10-16  Out of service-mechanical trouble
10-17  Second call for ambulance-verify if ambulance has been sent
10-18  Back in service-available
10-19  Condition corrected
10-20  Ambulance case (specify type)
10-21  Ambulance may be needed
10-22  Signal report
10-23  Service call to Radio Repair Truck (Specify car and precinct)
10-24  (Unit at scene)-available for another call
10-25  (Unit at hospital or office)-available for another call
10-26  (unit)-verify address
10-27  (Unit)-not available for another call
10-28  Ambulance needs assistance in carry case
10-29  Cancel ambulance-not necessary
10-30  Report of a Felony in progress
10-31  All cars-arrest for Felony occupants of automobile, dangerous persons, use caution
10-32  Investigate occupants of auto, suspicious persons, abandoned suspicious cars,
          apparently intoxicated operators of cars, etc.

Codes added in 1960's
10-33  Removed to hospital
10-34  Referred to Detectives
10-35  Check on plates (see if stolen)
10-36  Wanted for alarm (stolen)
10-37  Plates check clear (not stolen)
10-38  Subject to station house
10-39  Report of past Larceny or Burglary
10-40  Unfounded call

Some FCC call letters assigned to the NYPD over the years

WRQP  KEA370  KEA394  KEA744-5  KJK597-608
KOP911-(with move to UHF)

Number of Radio Divisions (Patrol)

Initially one, then one for each borough.
By the 1960's- 8 - Manhattan North and South, Bronx, Brooklyn North and South, Queens East and West and Richmond (Staten Island).
By the 1970's- 18 - 6 in Manhattan, 3 in the Bronx, 5 in Brooklyn, 3 in Queens and 1 in Richmond.
Today there are 37 authorized radio zones - 9 in Manhattan, 6 in the Bronx, 11 in Brooklyn,
9 in Queens and 2 in Richmond.

If you wanted to monitor police calls
in the late 1950's and early 1960's
these are the radios you would have needed,
no scanners back then.

appears to be a conversion of
an early FM table radio

early MonitoRadio (later Regency) low band

early MonitoRadio (later Regency) high band

a top of the line Hallicrafters monitor radio
VHF high band with 2 crystal positions

 
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