NC Basic Radar
RADAR - answer Radio Detection and Ranging
Beginning in 2011 in NC there are RADARs on the market that show.... - answer
Distance/Range
Radio waves from a radar travel? - answer Forever, unless refracted, reflected, or
absorbed
Frequency - answer Hertz, cycle, wave
What is constant? - answer Signal speed
Two variables - answer Frequency and wave length
How to measure a wave - answer Beginning of peak to the end of the valley
Frequency of X Band - answer10,525,000,000 cycles per second
10.525 gHz
1.1 inches
Frequency of Ka Band - answer33.4-36 gHz, 4/5 centimeters, .33 inches
K band frequency - answer24.150 GHz, .49in
Signal speed - answer186,000 miles per second
30 billion centimeters per second
Speed of light
Christian Johann Doppler studied what? - answerSound waves
Factor that does not affect target selectivity - answercolor of vehicle
11 degree beam angle will be 38 feet wide at 200 feet. It will be more than ____ feet
wide at 300 feet away - answer57
When adjusting radar range, you are shortening the length of the beam? - answerFalse
Low setting - answerVery close vehicles, strong signals
High setting - answerVery far vehicles, weak signals
, Can you mute the audio - answerNo
Brandis vs. Brown - answerEveryone can testify to speed, common knowledge
Object brought closer to Radar - answerHigher frequency than transmitted signal
Relative Motion - answerObject stands still and RADAR moves
RADAR stands still and object moves
RADAR and object are moving in same direction at different speeds
When will RADAR show true speed? - answerWhen the vehicle is going directly toward
or away from RADAR
Never set the RADAR any further than ____ degrees from direction of travel - answer20
In moving mode, RADAR determines your speed relative to the ________ and the
target vehicle relative to _____________ - answerGround, patrol vehicle
Moving opposite direction front antenna, what formula will you use - answerTS=CS-PS
Moving opposite rear antenna, formula - answerTS=SS-PS
If you are moving opposite direction, patrol speed is 65mph and the Target speed is 75
mph, what is your CS or SS? - answer140
Best way to eliminate target selectivity issues is to rely on your ability to -
answerestimate vehicle speeds
Multi path beam cancelation - answerWhen you are clocking a car and suddenly the
clock goes away for a time then re-appears
Man made interference - answerNeon lights, CB radios, high power lines
Scanning - answerStationary mode, RADAR moves forward or back during clock
Panning - answerTwo piece RADAR, point the RADAR at the counting box
In moving RADAR you have _____ beams transmitted and ___ reflected back -
answer1, 2
In moving RADAR, set the antenna as close to - answer0 degrees from the patrol car
direction of travel
Shadowing - answerWhen you receive your patrol car speed off the vehicle in front of
you instead of the road
RADAR - answer Radio Detection and Ranging
Beginning in 2011 in NC there are RADARs on the market that show.... - answer
Distance/Range
Radio waves from a radar travel? - answer Forever, unless refracted, reflected, or
absorbed
Frequency - answer Hertz, cycle, wave
What is constant? - answer Signal speed
Two variables - answer Frequency and wave length
How to measure a wave - answer Beginning of peak to the end of the valley
Frequency of X Band - answer10,525,000,000 cycles per second
10.525 gHz
1.1 inches
Frequency of Ka Band - answer33.4-36 gHz, 4/5 centimeters, .33 inches
K band frequency - answer24.150 GHz, .49in
Signal speed - answer186,000 miles per second
30 billion centimeters per second
Speed of light
Christian Johann Doppler studied what? - answerSound waves
Factor that does not affect target selectivity - answercolor of vehicle
11 degree beam angle will be 38 feet wide at 200 feet. It will be more than ____ feet
wide at 300 feet away - answer57
When adjusting radar range, you are shortening the length of the beam? - answerFalse
Low setting - answerVery close vehicles, strong signals
High setting - answerVery far vehicles, weak signals
, Can you mute the audio - answerNo
Brandis vs. Brown - answerEveryone can testify to speed, common knowledge
Object brought closer to Radar - answerHigher frequency than transmitted signal
Relative Motion - answerObject stands still and RADAR moves
RADAR stands still and object moves
RADAR and object are moving in same direction at different speeds
When will RADAR show true speed? - answerWhen the vehicle is going directly toward
or away from RADAR
Never set the RADAR any further than ____ degrees from direction of travel - answer20
In moving mode, RADAR determines your speed relative to the ________ and the
target vehicle relative to _____________ - answerGround, patrol vehicle
Moving opposite direction front antenna, what formula will you use - answerTS=CS-PS
Moving opposite rear antenna, formula - answerTS=SS-PS
If you are moving opposite direction, patrol speed is 65mph and the Target speed is 75
mph, what is your CS or SS? - answer140
Best way to eliminate target selectivity issues is to rely on your ability to -
answerestimate vehicle speeds
Multi path beam cancelation - answerWhen you are clocking a car and suddenly the
clock goes away for a time then re-appears
Man made interference - answerNeon lights, CB radios, high power lines
Scanning - answerStationary mode, RADAR moves forward or back during clock
Panning - answerTwo piece RADAR, point the RADAR at the counting box
In moving RADAR you have _____ beams transmitted and ___ reflected back -
answer1, 2
In moving RADAR, set the antenna as close to - answer0 degrees from the patrol car
direction of travel
Shadowing - answerWhen you receive your patrol car speed off the vehicle in front of
you instead of the road
