updated 2026(latest version
verified for accuracy) | Latest!!
Public Safety Land Mobile radio (LMR) is licenced by who? ------- ✔ CORRECT ANSWER ✓✓The
Federal Communications Commission (FCC)
In a radio system, voice is converted into what? ------- ✔ CORRECT ANSWER ✓✓Electrical Energy
(Waves)
Band ------- ✔ CORRECT ANSWER ✓✓A small section of the spectrum of radio communications
frequencies
What is a radio channel? ------- ✔ CORRECT ANSWER ✓✓Pairs of Frequencies
Who assigns radio channels? ------- ✔ CORRECT ANSWER ✓✓The FCC
VHF ------- ✔ CORRECT ANSWER ✓✓30-300 MHz
UHF ------- ✔ CORRECT ANSWER ✓✓300-3000MHz
VHF Low Band ------- ✔ CORRECT ANSWER ✓✓39-72MHz
,VHF Low Band ------- ✔ CORRECT ANSWER ✓✓travels greater distances than high frequencies.
There may be interference or atmospheric skip
VHF High Band ------- ✔ CORRECT ANSWER ✓✓150-170 MHz
VHF High Band ------- ✔ CORRECT ANSWER ✓✓Often used by rural agencies, provide better
coverage in uneven terrane like wooded areas.
Ultra high Frequency (UHF) ------- ✔ CORRECT ANSWER ✓✓400 MHz, 500 MHZ, 800MHz, and
900 MHz
Ultra High Frequency (UHF) ------- ✔ CORRECT ANSWER ✓✓These radio signals do not travel as
far, but penetrate structures better than lower frequencies.
Trunked Radio ------- ✔ CORRECT ANSWER ✓✓A method used to conserve precious radio
spectrum.
Trunked Radio ------- ✔ CORRECT ANSWER ✓✓Users share the same radio frequencies . Talk
groups are assigned.
Conventional Radio ------- ✔ CORRECT ANSWER ✓✓Channel use is dedicated, like getting in like
at the bank.
Simulcast ------- ✔ CORRECT ANSWER ✓✓Multiple transmitter sites all transmitting on the same
frequency at the same time
Radio Over IP (ROIP) ------- ✔ CORRECT ANSWER ✓✓The linking and control of radio system
sites over a data network
,FirstNet ------- ✔ CORRECT ANSWER ✓✓Entity established to build out a National Public Safety
Broadband Network
Multicast ------- ✔ CORRECT ANSWER ✓✓Multiple repeater sites; each transmits using different
frequency pairs at each site
Interoperability ------- ✔ CORRECT ANSWER ✓✓Ability of all radio users to communicate
regardless of band
Base Station ------- ✔ CORRECT ANSWER ✓✓Wireless communications station installed at a
fixed location
Repeater ------- ✔ CORRECT ANSWER ✓✓Base station using separate transmit and receive
frequencies to "repeat" incoming audio from one user to all users
P25 ------- ✔ CORRECT ANSWER ✓✓Initiated by APCO to create a national standard for digital
radio to enable interoperability between public safety agencies using the same frequencies but
not necessarily the same digital vendor.
FirstNet ------- ✔ CORRECT ANSWER ✓✓Created by congress as a part of the middle class tax
relief ac of 2012 to construct a Nationwide Public Safety Broadband network (NPSBN)
FirstNet ------- ✔ CORRECT ANSWER ✓✓Network will provide mission-critical broadband
communications for first responders on 700 MHz LTE
Copper ------- ✔ CORRECT ANSWER ✓✓2 wire or 4 wire circuit carrying an electrical signal
, Fiber Optic ------- ✔ CORRECT ANSWER ✓✓A strand of glass carrying an optical signal
Selective Routing ------- ✔ CORRECT ANSWER ✓✓The process by which 911 calls/messages are
routed to the appropriate PSAP based on the caller's location information
Default Routing ------- ✔ CORRECT ANSWER ✓✓The capacity to route a 911 call to a designated
PSAP when the incoming 911 call cannot be selectively routed due to an ANI failure or other
cause.
Alternate Routing ------- ✔ CORRECT ANSWER ✓✓The capability of touring 911 calls to a
designated alternate location if all 911 trunks to a primary PSAP are busy or out of service.
Tandem to Tandem ------- ✔ CORRECT ANSWER ✓✓Inter-Selective Router calling is often used
to transfer calls between PSAPS that are served by separate selective routers
Dual Tandems ------- ✔ CORRECT ANSWER ✓✓When a single PSAP is served by two or more
separate selective routers
Area Code ------- ✔ CORRECT ANSWER ✓✓Number Plan Area (NPA) is indicated by the first
three digits of a 10-digit phone number
Area Code Split ------- ✔ CORRECT ANSWER ✓✓A solution to provide additional phone numbers
by splitting an area code into two geographically different area codes
Area Code Overlay ------- ✔ CORRECT ANSWER ✓✓A solution to provide additional phone
numbers by offering a new area code in the same geographic area. This creates the possibility
that two phones in the same room could have two different area codes.