PROGRESSION FIELD TECH II TO III
CONVENTIONAL EXAM EXAMINATION
TEST 2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
⩥ In what manner do radio waves propagate (move) away from the
source (antenna)? Answer: In a straight line in all directions at once.
⩥ Which one of the following radio frequency (RF) behaviors is defined
as "the bending of a wave as it passes through a medium of different
density"? Answer: Refraction.
⩥ Which of the voltage standing wave ratios (VSWR) shown below is
best for transferring radio frequency (RF) energy between connections?
Answer: 1.2:1
⩥ What are some measures that can be taken to prevent high voltage
standing wave ratios (VSWR) in transmitters and receivers? Answer:
Tighten connections between cables and connectors and use impedance-
matched hardware throughout.
⩥ How does radio frequency line-of-sight (RF LOS) differ from visual
LOS? Answer: RF LOS is accompanied by a Fresnel Zone, a series of
concentric ellipsoid-shaped areas around the visual LOS path.
,⩥ Why is the Fresnel Zone important to the integrity of the radio
frequency (RF) link or path? Answer: The Fresnel Zone defines an area
around the RF line-of-sight (RF LOS) that can introduce RF signal
interference if blocked.
⩥ What is Equivalent Isotropically Radiated Power (EIRP)? Answer:
The power actually radiated by the antenna element.
⩥ What unit of measurement is used to express the gain of an antenna?
Answer: Decibels isotropic (dBi).
⩥ Given an access point (AP) with 100 milliwatts (mW) of output power
connected through a cable with 3 decibels (dB) of loss to the antenna
with a 10 decibels isotropic (dBi) gain, what is the approximate
Equivalent Isotropically Radiated Power (EIRP) level from the antenna
in milliwatts (mW)? Answer: * (WRONG)100 mW
⩥ A transmitter outputs 100 milliwatts (mW). An antenna cable connects
the transmitter to an amplifier, and the power into the amplifier's input
measures 50 mW. The amplifier increases the signal to the original
transmitter's power level and sends the signal to the antenna. The
antenna receives the signal from the amplifier at 75 mW, and then
transmits at 150 mW. What is the intentional radiator's (IR) power level
in this radio frequency (RF) circuit? Answer: 75 mW
, ⩥ Which of the following networks or products use spread spectrum
technologies? Answer: Wireless local area networks (WLAN),
Bluetooth, and global positioning systems (GPS).
⩥ Why is spread spectrum technology used in applications such as
Bluetooth wireless personal area networks (WPAN)? Answer: Spread
spectrum technology allows wireless networking to create a short range,
personal communications network.
⩥ In a frequency-hopping spread spectrum (FHSS) system that uses 10
frequencies across a 12 megahertz (MHz) frequency band, what happens
if narrowband interference occurs at only one of the 10 frequencies?
Answer: The spread spectrum signal remains intact. Instead of being
lost, the data on the interfered frequency is retransmitted on one of the
other nine frequencies.
⩥ The Federal Communications Commission (FCC) rules regarding
power output for frequency-hopping spread spectrum (FHSS) state that a
maximum output to the intentional radiator (IR) with 5 megahertz
(MHz) of carrier frequency bandwidth must be which one of the
following? Answer: 125 milliwatts (mW).
⩥ The ratio of the chipping code to data bits for a direct sequence spread
spectrum (DSSS) signal is called which of the following? Answer:
Processing gain.
CONVENTIONAL EXAM EXAMINATION
TEST 2026 COMPLETE QUESTIONS AND
SOLUTIONS GRADED A+
⩥ In what manner do radio waves propagate (move) away from the
source (antenna)? Answer: In a straight line in all directions at once.
⩥ Which one of the following radio frequency (RF) behaviors is defined
as "the bending of a wave as it passes through a medium of different
density"? Answer: Refraction.
⩥ Which of the voltage standing wave ratios (VSWR) shown below is
best for transferring radio frequency (RF) energy between connections?
Answer: 1.2:1
⩥ What are some measures that can be taken to prevent high voltage
standing wave ratios (VSWR) in transmitters and receivers? Answer:
Tighten connections between cables and connectors and use impedance-
matched hardware throughout.
⩥ How does radio frequency line-of-sight (RF LOS) differ from visual
LOS? Answer: RF LOS is accompanied by a Fresnel Zone, a series of
concentric ellipsoid-shaped areas around the visual LOS path.
,⩥ Why is the Fresnel Zone important to the integrity of the radio
frequency (RF) link or path? Answer: The Fresnel Zone defines an area
around the RF line-of-sight (RF LOS) that can introduce RF signal
interference if blocked.
⩥ What is Equivalent Isotropically Radiated Power (EIRP)? Answer:
The power actually radiated by the antenna element.
⩥ What unit of measurement is used to express the gain of an antenna?
Answer: Decibels isotropic (dBi).
⩥ Given an access point (AP) with 100 milliwatts (mW) of output power
connected through a cable with 3 decibels (dB) of loss to the antenna
with a 10 decibels isotropic (dBi) gain, what is the approximate
Equivalent Isotropically Radiated Power (EIRP) level from the antenna
in milliwatts (mW)? Answer: * (WRONG)100 mW
⩥ A transmitter outputs 100 milliwatts (mW). An antenna cable connects
the transmitter to an amplifier, and the power into the amplifier's input
measures 50 mW. The amplifier increases the signal to the original
transmitter's power level and sends the signal to the antenna. The
antenna receives the signal from the amplifier at 75 mW, and then
transmits at 150 mW. What is the intentional radiator's (IR) power level
in this radio frequency (RF) circuit? Answer: 75 mW
, ⩥ Which of the following networks or products use spread spectrum
technologies? Answer: Wireless local area networks (WLAN),
Bluetooth, and global positioning systems (GPS).
⩥ Why is spread spectrum technology used in applications such as
Bluetooth wireless personal area networks (WPAN)? Answer: Spread
spectrum technology allows wireless networking to create a short range,
personal communications network.
⩥ In a frequency-hopping spread spectrum (FHSS) system that uses 10
frequencies across a 12 megahertz (MHz) frequency band, what happens
if narrowband interference occurs at only one of the 10 frequencies?
Answer: The spread spectrum signal remains intact. Instead of being
lost, the data on the interfered frequency is retransmitted on one of the
other nine frequencies.
⩥ The Federal Communications Commission (FCC) rules regarding
power output for frequency-hopping spread spectrum (FHSS) state that a
maximum output to the intentional radiator (IR) with 5 megahertz
(MHz) of carrier frequency bandwidth must be which one of the
following? Answer: 125 milliwatts (mW).
⩥ The ratio of the chipping code to data bits for a direct sequence spread
spectrum (DSSS) signal is called which of the following? Answer:
Processing gain.
