Applied Concepts Inc ACMI006 Manuale Utente

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Stationary Mode Tuning Fork Test 
Two (2) tuning forks are supplied for S 
PATROL
.  The 
tuning forks are calibrated for 25 mph and 40 mph (40 and 64 kph).  
To perform the tuning fork test, power the unit ON (press PWR 
switch), select stationary mode (press MOV/STA  key), select the 
front antenna (press ANT key), and place the unit in transmit mode 
(press  XMIT key).  Strike the 25 mph tuning fork against a hard 
nonmetallic surface, such as the heel of a shoe.  Quickly hold the 
tuning fork approximately two (2) inches in front of the antenna, 
with the narrow edge of the fork facing the antenna.  The target 
window should indicate 25 ± 1 mph (40 kph) (Fig 44). Repeat the 
above test with the 40 mph (64 kph) tuning fork. Select the rear 
antenna, if purchased, and repeat both tuning fork tests. Note:  We 
recommend that the tuning fork test be performed on each antenna.  
Some departments perform this test both before and after each 
citation.  Check your department policy.
 
 
S
XMIT FRONT REAR
SAME SLOW
FAST
LOCK
TARGET
PATROL
Fig 44 
Opposite Lane Moving  Mode Tuning Fork Test 
Two (2) tuning forks are supplied for S 
PATROL
.  The 
tuning forks are calibrated for 25 mph and 40 mph (40 and 64 kph).  
To perform the tuning fork test, power the unit ON (press PWR 
switch), select moving mode (press MOV/STA key), select the front 
antenna (press ANT key), and place the unit in transmit mode (press 
XMIT key).  Strike both tuning forks against a hard nonmetallic 
surface, such as the heel of a shoe.  Quickly hold the lower speed 
fork approximately two (2) inches in front of the antenna, with the 
narrow edge of the fork facing the antenna.  The patrol window 
should indicate 25 ± 1 mph (40 kph) (Fig 45).  Now move the higher 
speed fork in front of the antenna with the narrow edge facing the 
antenna.  The target window should register 15 mph ± 2 (24 kph) 
(Fig 46), which is the difference in speed of the two forks.  Repeat 
the above test with the rear antenna selected, if installed. Note:  We 
recommend that the tuning fork test be performed on each antenna.  
Some departments perform this test both before and after each 
citation.  Check your department policy.
 
S
XMIT FRONT
REAR
SAME SLOW
FAST LOCK
TARGET
PATROL
 
Fig 45 
S
XMIT FRONT
REAR
SAME SLOW
FAST LOCK
TARGET
PATROL
Fig 46 
Same Lane Moving Mode Tuning Fork Test
 
 
Two (2) tuning forks are supplied for S 
PATROL
.  The 
tuning forks are calibrated for 25 mph and 40 mph (40 and 64 kph).  
To perform the tuning fork test, power the unit ON, select moving 
mode, and same lane mode.  If the SLOW icon is present, press the 
FASTEST key to remove it. Select the front antenna, and place the 
unit in transmit mode.  Strike both tuning forks against a hard 
nonmetallic surface, such as the heel of a shoe.  Quickly hold the 
higher speed fork approximately two (2) inches in front of the 
antenna, with the narrow edge of the fork facing the antenna.  The 
patrol window should indicate 40 ± 1 mph (64 kph) (Fig 47).  Move 
the lower speed fork in front of the antenna with the narrow edge 
facing the antenna.  The target window should register 65 mph ± 2 
(104 kph) (Fig 48), which is the sum of the speed of the two forks.  
Repeat the above test with the rear antenna selected, if installed. 
Note:  We recommend that the tuning fork test be performed on each 
antenna.  Some departments perform this test both before and after 
each citation.  Check your department policy.
 
S
XMIT FRONT
REAR
SAME
SLOW
FAST LOCK
TARGET
PATROL
 
Fig 47 
S
XMIT FRONT
REAR
SAME
SLOW
FAST LOCK
TARGET
PATROL
Fig 48 
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