Touch Screen Frequency Procedure

Using the Software

Use the Enable Frequency Selection option to test the available frequency settings and determine the best frequency. The range of frequency settings and the default setting de- pends on your touch controller. You can set a new operating frequency, and then check the performance of the touch sensor at that frequency setting.

Be aware that if you choose Restore Factory Settings → Controller from the Tools tab, you will change the Touch Screen Frequency to the factory default setting. You may need to redo the Touch Screen Frequency at this time

From the Tools tab, you can choose the Advanced Options button. From the Advanced Options dialog, select Enable Frequency Selection to activate this option on the controller tab if you are using a capacitive EX based controller.

In the Touch Screen Frequency box, you will see a pull down list of several frequency options. In general, the highest possible frequency will provide the best results. Once you change the frequency, do not touch the sensor for approximately 30 seconds. Touch will return when the frequency has been changed. Test to see if you are satisfied.

On a pen controller system, you have the option to change the frequency for both your finger and the pen if you are using Pen/Finger mode.

Testing the Newly Selected Frequency

Any time you adjust the Touch Screen Frequency you should test how the touch sensor is working and verify you are satisfied with the operation of the touch sensor.

Test the sensor by touching in several places and sliding your finger around the sensor.The cursor should hold steady and smooth. If you see erratic or jittery cursor movement, readjust the Touch Screen Frequency.

Adjust the frequency until your touch test produces acceptable results. A good test is to go to the Draw program and hold your finger steady on the sensor. If the resulting pattern is a crisp and clear single dot, you should have a good frequency.

It is recommended that you recalibrate the touch sensor after you run the Touch Screen Frequency option.

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