Measurement Units:
MPH = Miles per Hour
MPS = Meters per Second
FPS = Feet per Second
KPH = Kilometers per Hour
5. OPERATIONAL DETAILS
Handheld Stationary Mode Radar
SUPPORT
We are happy to help. If you have any
questions, concerns, or need any
assistance, please contact us at:
Support@PocketRadar.com
PocketRadar.com/TrafcAdvisor
888.381.2672
CAUTION:
ALWAYS REMEMBER TO STAY SAFE WHEN MEASURING. NEVER PUT YOURSELF IN A PLACE WHERE YOU COULD BE STRUCK
BY A MOVING OBJECT. WHEN POSSIBLE, MEASURE OBJECTS MOVING AWAY FROM YOU, RATHER THAN TOWARDS YOU.
11. SPECIFICATIONS
– 7to325milesperhour(MPH)(+/-1MPH)
– 11to523kilometersperhour(KPH)(+/-2KPH)
– 10to477feetpersecond(FPS)(+/-2FPS)
– 3to145meterspersecond(MPS)(+/-1MPS)
– Frequency:K-band(24.125GHz+/-50MHz)
– Operating Temperature Range: 200 F to 1200 F
– Size:4.7x2.3x0.8Inches
– Weight: 4.5 Ounces with Batteries
– Memory Recall Function: Previous 10 Readings
– Battery Life: Over 10,000 Readings with 2 AAA
Alkaline Batteries
PocketRadar.com
Make sure to visit PocketRadar.com for more
details, tips, videos, support, FAQs, and more.
If you ever have any questions please contact us
theU.S.at888-381-2672.
6. ANGULAR INTERFERENCE
How to Avoid the COSINE Error
RADAR MEASUREMENT
USING TRAFFIC ADVISOR™
•TheTrafcAdvisor™is a stationary mode radar and is not
intended to be used in a moving vehicle.
•TheTrafcAdvisor™radar tracks the strongest signal. It
displays the speed of the vehicle with the strongest radar
return, which is typically the closest vehicle.
•TheTrafcAdvisor™measures vehicles that are approaching
and receding from the stationary radar position. It does not
discriminate the direction of the moving vehicle.
BUTTON
OPERATION
•QuicklyTAP(pressandrelease)
the ORANGE button to take a single
measurement snapshot of a vehicle speed.
The displayed speed will remain visible for
30 seconds.
•PressandHOLDtheORANGEbutton
to continuously measure the changing
speed of a vehicle as it accelerates or
decelerates. The Trafc Advisor™ radar will
updatethedisplayedspeedapproximately
every3/4ofasecondaslongasyou
continue to HOLD the ORANGE button
down.
•TAPthesmallblackRECALLbuttonto
review the tracking history of the previous
10 recorded speeds.
Due to the nature of how Doppler speed radar works, all speed radars will only measure the
relative speed of a target in the direction that it approaches or moves away from the speed
radar. The Traffic Advisor™will measure speed most accurately when the path of the moving
target runs directly in-line with the beam of the radar. (Note: Always be safe. Never put
yourself in a position where you could be struck by a moving object.) If you point the beam
of the Traffic Advisor™at an angle different than the path of the moving object, you will
measure a slower speed than the object actually travels along its path. You may also find it
more dif ficult to capture a small object within the narrow beam of the radar when you
measure off angle. (Think of the beam like a focused flashlight beam, not like a floodlight).
This off angle speed measurement error is
referred to as the COSINE error, named after the mathematical function that allows
youtocalculatetheexactspeedversusangle.Themeasuredspeedwillalwaysread
lower than the actual speed as you move off the centerline of the path of the moving
object. For small angles, this error will be very small. The chart above right shows the
percentage error for a given angle between the radar beam and the moving object.
Appliances
Cell Phones
Computers
Florescent Bulbs
Fan Motion
Microwaves
9. RANGE8. CHANGE UNITS
STEP ONE
To change the units of
measurement, press both
buttons at the same time,
and then let go. The
currently selected units
indicator will blink.
STEP TWO
Press the ORANGE
button repeatedly until you
have selected the desired
units.
STEP THREE
Press the RECALL button
to save the selected
units and return to
normal operation.
CAR
FROM 1/2 MILE (0.8 KILOMETERS)
MOTORCYCLE
FROM 1/4 MILE (0.4 KILOMETERS)
Radar technology works by sending a signal out to an
object, and then measuring the reected signal that
bounces back. The larger the object, the greater the
reected signal and therefore the longer the range.
The Trafc Advisor™ will accurately measure the speed
ofacarfrom1/2mile(0.8kilometers)away,anda
motorcyclefrom1/4mile(0.4kilometers)away.
10. VERIFYING THE RADAR ACCURACY
Tuning Fork Test
The tuning fork is calibrated to vibrate at a specific frequency that is picked up by
the radar as a precise speed reading. Tap the tines gently on a solid, non-metallic
surface. Then hold the vibrating tuning fork with the narrow side facing the back of
the radar, a few inches away. Tap the button to read the speed. Be sure not to move
the tuning fork or radar during the measurement. If the speed reading is within ±1
MPH or ±2 KPH of the speed stamped on the fork, the radar gun is working properly.
NOTE: Tapping the tines against very hard surfaces like concrete or metal
can possibly damage the tines. Be sure to only tap the tuning fork against
materials that are softer than metal, such as wood or hard plastic.
Tap tuning fork against solid surface
Position vibrating tuning fork behind radar as
shown here and tap the button to read the speed
7. SOURCES OF INTERFERENCE
Mechanical and Electrical
Before taking radar speed measurements, always start by making a visual tracking
history of the vehicle. All Doppler radar speed measurements need to be considered in
thecontextofthetotaloperatingenvironment.Thiscanincludebothmechanicaland
electrical sources of interference. Sometimes this interference can create unintentional
readings, or so-called “ghost” readings. With a visual tracking history, these are
readily identifiable as such in the presence of a valid target. These unintentional
readings will disappear and be replaced by the target reading when the target vehicle
gets close enough and will not affect the accuracy of the actual target reading.
MECHANICAL
Any objects that rotate, move or vibrate can create
a reading on a Doppler speed radar. Large amounts
of vibration, such as ver y loud noises, can also
result in readings. Things like motors, fans, or
other motion can be detected by the speed radar.
Aiming the radar beam away from the motion will
eliminate the interference. In some cases, if you are
measuring the speed of a vehicle at a very close
distance, you may pick up the engine, the radiator
fan,theheaterorA/Cfaninsidethecar,moving
wheels or hubcaps, etc. In this case, tr y to make
the measurement from a further distance away. You
mayalsoexperiencethistypeofinterferencewhen
you are trying to measure speeds from inside a car
with the engine running, as you may measure the
speedoftheinternalfansandnottheexternal
moving objects.
ELECTRICAL
Cell phones, wireless devices,
radioandT Vtransmitters,
computers, fluorescent lights,
televisions, walkie-talkies, etc.,
can also possibly create
unintentional readings.