Chapter 5 Vocab Flashcards
public safety answering point (PSAP)
the location where calls are routed
emergency medical dispatch (EMD)
emergency medical response and the aid of callers reporting a medical emergency
dispatch
to send to a specific location
enhanced 9-1-1 systems
advanced system that collects the phone number and address of a caller
computer assisted dispatch system (CAD)
enables the dispatcher to view all info about the call
frequency
number of oscillations per one second of the carrier wave
hertz (Hz)
one cycle per second in regards to frequency
federal communications commission (FCC)
government agency that regulates communications by radio, tv, wire, satellite, and cable
very high frequency band (VHF)
radio frequency ranging between 30MHz to 300MHz
ultra high frequency band (UHF)
radio frequency ranging between 300MHz to 3.0GHz
narrow band technology
reassignment of frequencies with 12.5KHz spacing
transceivers
two way radios
squelch
filtering system to block background noise out when a radio is not receiving a signal
base stations
a fixed location and the most powerful radios in the commissions system
simplex radio
radio communications using a single frequency
duplex radio
radio system using paired frequencies
multiplex radio
simultaneous transmission of multiple data streams
- used for transmitting ECG tracings
digital radio
transmission of info using a computer or voice signals that have been converted to a digital signal
repeaters
base station that receives a radio signal on one frequency and retransmits it at a higher power frequency
encoded radio signals
allows multiple users to share the radio
trunked radio systems
computerized sharing of radio frequencies by multiple agencies
radio dead spots
areas where radios are unable to communicate with a repeater
mutual aid
help from outside agencies
interoperability
compatibility with other agency communications
automatic crash notification (ACN)
monitors the event of a crash
