INSTALLING THE UNIT
Mounting Guidelines
For the best performance, select the proper location for the detector where it
has a direct view of the road. Remember, the radar antenna and laser sensor
are located behind the rear panel of the unit. The antenna and sensors should
not be obstructed by metal or metallic surfaces and should be pointed at the
horizon for accurate long-range detection.
Choose a location that does not block the driver's vision.
Mount the detector in a level position.
Do not mount the detector behind the metal surfaces, windshield antenna, wiper blades, and ornaments mirrored sunscreen.
Window tinting reduces the received strength of laser signals; do not mount the detector behind tinted glass. Do not mount the detector where the driver or passenger might hit in a sudden stop or accident.
Mounting Type
There are two ways of installation of CRUNCH laser/radar detector
Hook-and Loop Mounting
The hook-and-loop tape included with your detector might be the best mounting method for some dashboards.
Follow these instructions to use the hook-and-loop tape.
Use a damp cloth to thoroughly clean both the bottom of the detector and the dashboard.
Peel off the tape's paper backing and apply the tape to the bottom of the detector.
Remove the paper backing from the other side of the tape and press the detector onto the dashboard.
Windshield Mounting
The supplied windshield bracket and suction cups let you quickly mount the detector to your vehicle's windshield.
Follow these steps to use mounting bracket kit.
Install the suction cups onto the bracket by fitting them into their holes.
Attach the bracket to windshield.
Attach Detector to bracket.
Bend bracket for correct detection angle (if necessary), do not use the CRUNCH 211B to bend bracket.
Plug power cord DC12V into detector.
Plug power cord into cigarette lighter.
Cautions: Some new models of cars have a plastic safety coating which is applied to the windshield. The suction cups may leave permanent marks on the windshield once they are removed. Check vehicle owner's manual to see if your car has the plastic safety coating.
Connecting the Power
The detector is designed to operate on most DC12V negative ground vehicle electrical systems. The power cord provided with the detector has a cigarette lighter socket plug at one end and a small connector at the other.
1. Insert the small connector into the jack on the side of the detector.
2. Insert the other end into the cigarette lighter socket of your vehicle.
If the detector does not operate when you turn it on, remove the adapter from the cigarette lighter socket and carefully check the socket for debris. Also, check the fuse in the adapter and your vehicle's fuse box.
Replacing the Fuse
If the detector CRUNCH 211B stops operating, the fuse in the cigarette lighter plug might be blown. If it has blown, follow these steps to replace it:
1. To replace the fuse, unscrew the top of the plug.
2. Remove the fuse and check the fuse to see if it has blown. If it has, replace it.
OPERATION
Power on and Self-Test
To turn the detector on, connect power and turn the On/Off volume control away from you until it clicks.
When powered up, the detector sounds a distinctive tone for each signal and flashes in sequence as a self-test. Then all display turn off except the ‘P’.
Memory confirmation
All features selected are retained in the memory, which are Highway/City, Brightness, Tone Sound, and VG-2.
Adjusting Volume
To change the detector's volume, turn volume control either away or toward you.
Dim Mode
Dim Mode reduces the illumination of the display. When pressing the button, the illumination reduces up to 50 %. When pressing the button for the second time – all illumination is reduced except the ‘P’. Pressing and holding the power button a third time restores full illumination to the display.
OPERATION SETTINGS
City Operation
In modern cities there are many weak signals which have no relation to the traffic signal controllers. The City mode reduces the detector's sensitivity to weak signals and eliminates responses to false sources.
It’s important to notice that old or poorly shielded detectors in other vehicles can sometimes transmit weak radar signals. So don’t forget to switch on the City mode where it is necessary.
The CRUNCH 211B has three City Modes:
To select the city mode, press CITY button. A green LED S3 will blink, and Highway mode will turn on. This mode provides maximum sensitivity for open road driving where there are no false signals.
Press CITY button again to switch a green LED S2. This mode is preferred in city highway,
Press CITY button again to switch a green LED S1. This mode is preferred in industrial zones.
Next press CITY button returns to S3 mode.
Mute Operation
To silence the detector, press MUTE. You can also press MUTE button while the audio alert is sounding to silence it. Press MUTE button again to restore audio alarm.
Receiving and Identifying Radar and Laser Signals
When your detector identifies radar signals, the following will occur:
Distinctive audible alarms will be emitted for X-, K-, and Ka-band radar signals.
The alarm sounds will occur faster and faster as the signal gets stronger
(as you get closer to the source).
When the signal gets very strong, the alarm sounds become continuous tones.
2. The appropriate visual alarm indicator will flash in unison with the audio tones.
When the pulses of laser light from a laser gun are detected by your detector
a. The audible alarm will emit a distinctive sound for laser.
b. The “L” indicator will flash and start blinking.
c. Laser detection will override all radar bands.
VG-2 Alerts
The VG-2, also known as a “radar detector detector”, is a special receiver used by police to detect signals radiated by a radar detector.
When a VG-2 signal is detected, the alert is sounded and both ‘X’ and ‘K/Ka’ band indicators will flash.
VG-2 Select Operation
Pressing both DIM and CITY buttons for three seconds, your CRUNCH will disengage VG-2 feature with two beeps sound.
Pressing both DIM and CITY buttons again, your CRUNCH will engage VG-2 feature with one beep sound. Factory default is ‘VG-2 On’.
Pulse Protection
Pulse (or instant-on) radar is more difficult to detect than conventional radar because it remains “off” until activated to measure the speed of a targeted vehicle.
When a pulse type transmission is detected, your CRUNCH detector sounds an urgent audio warning and flashes the Alert strength indicators at their fastest rate.
CARE AND MAINTENANCE
Your CRUNCH is an example of superior design and craftsmanship.
The following suggestions will help you to handle your detector in a proper way so you can enjoy it for years.
Never leave the detector on the windshield or dashboard when you park your vehicle. The temperature in the vehicle in summer can reach levels above what is considered to be safe for this detector.
To make you less susceptible to break-in and theft, remove the detector from your windshield or dashboard when you leave your vehicle.
Do not expose the detector to moisture. Rain dew, road splash, or other liquids can damage the internal components and reduce sensitivity of the detector.
TROUBLESHOOTING
If the detector does not turn on:
Check the power cord. Be sure all power connectors are properly installed.
Check the fuse that controls power to the cigarette lighter socket. See your vehicles owner's manual
The cigarette lighter socket might be dirty. Clean it with fine emery cloth to ensure a good, clean connection.
Vehicle electrical problem exists.
Make sure that the volume control is in the ON position.
Caution: Do not place any metal object other than the cigarette lighter or a cigarette lighter plug in the cigarette lighter socket.
If the detector gives a false alert when the vehicle hits or bumps:
Check the vehicle's electrical system, including main battery cable and alternator connections.
Install a filter capacitor (470uF.25volts) on the back of the cigarette lighter socket, across the power connections.
If the receiving signals are weak:
Check the angle of detector.
Point detector to the horizon.
Radar antenna / laser sensor is obstructed.
Relocate the detector clear of any obstruction outside the windshield, such as a wiper blade (see mounting manual).
SPECIFICATIONS
RADAR
Receiver Type:
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Dual Conversion Superheterodyne
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Antenna Type:
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Linear Polarized. Self-Contained Antenna
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Detector Type:
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Frequency Discriminator
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Frequency of Operation:
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X-Band 10.500-10.550GHz
K-Band 24.050-24.250GHz
Ka-Band 33.400-36.000GHz
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LASER
Receiver Type: Pulsed Laser Signal Receiver
Detector Type: Digital Signal Processor
Opto Sensor: Photo Diode with Convex Condenser Lens
Spectral Response : 905 ± 50nm
General
Temperature Range: -20 to + 70°C
Power Requirements: 12~15V DC, 80mA (Negative Ground)
Dimensions HxWxD: 28 x 63.5 x 91mm
Weight: 65g
*
Specifications are typical. Individual units might vary.
Specifications are subject to change without notice.
