Bel 950 & Bel 980 Operating Instructions: Performance Verification & Troubleshooting

Performance Verification

Conditions that Affect Radar Alerts
If you feel your unit is not alerting properly, keep in mind that there are many conditions that influence the intensity or duration of an alert:
  1. The police are using instant-on/pulsed Radar, in which case no signal is transmitted until visual contact has been made with your vehicle. For detection of this signal, you must rely on reflected signals from Radar directed at traffic traveling ahead of you.
  2. The police Radar unit is positioned perpendicular to the road, around a curve, or just over the crest of a hill thus significantly reducing the reception range.
  3. The highway traffic between your vehicle and the police Radar source is heavy. This blocks/reflects transmitted signals. The presence of several large trucks between you and the police Radar unit could also significantly reduce reception.
  4. Rain or humid weather conditions can absorb transmitted signals before they reach your vehicle, again reducing detection range.
  5. The police Radar unit is not properly tuned and is transmitting outside the FCC allocated X, K or Super Wideband Ka frequency ranges.
Conditions that Affect Laser Alerts
If you feel your unit is not properly alerting to the presence of Laser signals, keep in mind that rain, fog, high humidity and traffic conditions can affect the range that the Laser beam can be detected.

Troubleshooting

Solutions for Common Problems
If your unit is not operating properly, please refer to the outline below.
Problem Possible Cause Corrective Procedure
Unit not receiving power Plug not properly inserted Reinsert plug and rotate
Fuse in power cord is defective Replace with 1 amp 250 Volt 3AG fuse (see here)
Lighter socket not clean and negatively grounded Consult your dealer or a professional car mechanic
Fuse of electrical wiring for lighter socket defective Consult your dealer or a professional car mechanic
"Poor detection range" Antenna/lens opening partially blocked Reposition unit with unobstructed view of road ahead and behind
Radar signals unable to pass through windshield Determine whether your vehicle has a "heated windshield" know as Instaclear® or ElectriClear®, or is covered with a metallic sun screen.
Erratic or frequent alerts High concentration of non-police X band sources Use CTY mode or CTY ALL
Review section in this manual on Performance Verification
Partial or no display Dim or dark mode engaged Disengage dim or dark mode

If you experience a problem with your unit that is not covered in this outline please call, Monday to Friday, 8:30AM - 4:30PM EST, for assistance:
1-800-341-2288 USA
1-800-268-3994 Canada
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