Cobra XRS 9770 XRS 9770 Compass Instructions

Important Compass Information

For The XRS 9770

Your Detector

Printed in China

Part No. 480-680-P

Version A

To Calibrate The Compass

Before calibrating compass, select the location where the detector will be mounted.

Enter the EasySet

®

Programming

Menu by pressing and holding the

Program/Mute

button

Tone

Visual Display

Voice

Three beeps

Program

Start Program

Press and release the

Select/Dim

button until you see Set Compass

displayed

One beep at

each press

Set Compass

None

Press and release the

Set/City

button

One beep

Drive in 2

circles...

Press SET

when done...

Set Compass

Drive your vehicle in two

complete circles*

None

None

Press the

Set/City

button again

Three beeps

Compass Set!

Compass Set

Will I need to calibrate the compass every time I use my radar detector?

No. The compass electronics holds the information about the magnetic fields made by your vehicle.

However, for best results, you should mount the detector in exactly the same location every time you

use it. When you remove the detector from your windshield, it is best to leave the mounting bracket on

your windshield so that when you replace the detector it is mounted, again, in exactly the same place.

If you decide to relocate your detector to a different place (either on the windshield or on the dash),

it is best to calibrate the compass again.

My compass sometimes seems to give a wrong direction – what is wrong?

If your compass is unable to detect the magnetic field of the Earth (used to determine the direction),

it cannot give the correct reading. This may happen if you are under a bridge, inside a parking garage,

or inside any enclosure or building that is constructed with metal framework. Other vehicles with a lot

of metal may also confuse your compass so that it cannot give accurate readings. This may happen if

you are next to a large tractor trailer, truck or train. Your compass will work again correctly as soon

as you get away from these locations. There is no need to calibrate your compass again after this.

* Drive your vehicle in two complete circles. A large parking lot is the most convenient place to do this. Please be careful when

making the circles and watch for other traffic. It does not matter what direction your vehicle is pointing when you start the circles,

which direction you go to make the circles, and it does not have to be exactly two circles. You do NOT have to make perfect circles.

You can drive in any pattern, as long as you make two complete turns. Four three-point turns, two small squares, or any two

complete loops will work as well as two circles. It does not matter what size the circles are, if your speed is constant, or how fast

you make the circles [but less than two minutes].

Turning On and Calibrating Your Compass

The compass in your radar detector must be turned on and be calibrated before it will show on the

display and give accurate directions.

The compass will show

— —

until it is calibrated

.

The factory

default for Compass is off.

To determine direction, the compass detects the weak magnetic field of the Earth. It also detects

the different magnetic fields produced by your vehicle, your audio speakers, and other installed

electronics. Calibration allows the compass electronics to measure and store information about

all magnetic fields in your vehicle so that it can ignore them!

Select/Dim Button

Set/City

Button

Program/Mute Button