Chapter 5 Vocab

Question 1

public safety answering point (PSAP)

Answer 1

the location where calls are routed

Question 2

emergency medical dispatch (EMD)

Answer 2

emergency medical response and the aid of callers reporting a medical emergency

Question 3

dispatch

Answer 3

to send to a specific location

Question 4

enhanced 9-1-1 systems

Answer 4

advanced system that collects the phone number and address of a caller

Question 5

computer assisted dispatch system (CAD)

Answer 5

enables the dispatcher to view all info about the call

Question 6

frequency

Answer 6

number of oscillations per one second of the carrier wave

Question 7

hertz (Hz)

Answer 7

one cycle per second in regards to frequency

Question 8

federal communications commission (FCC)

Answer 8

government agency that regulates communications by radio, tv, wire, satellite, and cable

Question 9

very high frequency band (VHF)

Answer 9

radio frequency ranging between 30MHz to 300MHz

Question 10

ultra high frequency band (UHF)

Answer 10

radio frequency ranging between 300MHz to 3.0GHz

Question 11

narrow band technology

Answer 11

reassignment of frequencies with 12.5KHz spacing

Question 12

transceivers

Answer 12

two way radios

Question 13

squelch

Answer 13

filtering system to block background noise out when a radio is not receiving a signal

Question 14

base stations

Answer 14

a fixed location and the most powerful radios in the commissions system

Question 15

simplex radio

Answer 15

radio communications using a single frequency

Question 16

duplex radio

Answer 16

radio system using paired frequencies

Question 17

multiplex radio

Answer 17

simultaneous transmission of multiple data streams

• used for transmitting ECG tracings

Question 18

digital radio

Answer 18

transmission of info using a computer or voice signals that have been converted to a digital signal

Question 19

repeaters

Answer 19

base station that receives a radio signal on one frequency and retransmits it at a higher power frequency

Question 20

encoded radio signals

Answer 20

allows multiple users to share the radio

Question 21

trunked radio systems

Answer 21

computerized sharing of radio frequencies by multiple agencies

Question 22

radio dead spots

Answer 22

areas where radios are unable to communicate with a repeater

Question 23

mutual aid

Answer 23

help from outside agencies

Question 24

interoperability

Answer 24

compatibility with other agency communications

Question 25

automatic crash notification (ACN)

Answer 25

monitors the event of a crash