Interference From Other Transmitters
Strong signals from nearby radio transmitters may interfere with
operation of S
DSR 2X. When this happens the 2X signals
that an interference source has been detected (Fig. 38). Speed
readings are inhibited when this occurs to prevent the possibility of
false readings. The interference source may be the vehicle’s two-
way radio, another nearby transmitter, or an illegal radar-jamming
device.
Fig. 38
Low Supply Voltage
A low voltage condition from the vehicle’s electrical system will
cause the U Lo display to illuminate (Fig. 39), and will inhibit speed
readings. An extremely noisy vehicle electrical system may result in
false readings or erratic operation. If this condition occurs, a two-
conductor, shielded (fused) cable should be connected directly from
the vehicle battery to the cigarette-plug on the dash. This should
eliminate any problems from vehicle electrical noise.
Fig. 39
No Power
s not have power, check the fuse in the power cable.
Unscrew the silver tip on the end of the cigarette plug and remove
at provides the power to the cigarette lighter.
Y TESTING IS IMPORTANT
In order to ensure continued compliance w ility of radar speed measurements, and
verify full operating performance, the foll fails any of the tests, it should be
ing performance characteristics should be verified on a regular basis:
es of 1/2 mile, or more, when set for highest
If the radar doe
the fuse. If the fuse is blown, replace with a new fuse and test the
radar.
If the power cable fuse is okay, check the fuse in the vehicle’s fuse
block th
If the vehicle’s fuse is also okay, place the radar in a different
vehicle or try a different radar in your vehicle.
WH
ith FCC rules, meet legal requirements for admissib
owing test procedures are recommended. If the unit
removed from service until the cause of the problem is corrected.
Periodic Calibration
We recommend that the follow
1. Transmitter frequency is within specification of licensed operating frequency.
2. Unit indicates correct speed (± 1 mph) when reading a target of known speed.
3. Unit detects targets of good reflectivity over unobstructed, flat terrain at distanc
sensitivity (SEn 4).
32
To Next Page
Loading...