The ARS has some configuration parameters that are often misinterpreted and when they are set incorrectly, generates an wrong configuration. Those parameters are:
- Left Limit
- Total Rotation
- ADC Left and Right Limits
This value by default is “000″.
Some of the most standard valued for some rotors are:
|Model||Left/CCW Limit||Total Rotation|
|Yaesu||000º||450º or 360º|
ADC Left & Right limits
The ARS-USB need to know where are the rotator limits (CCW and CW). The ARS-USB reads the rotator position by means of an ADC. In this way, the rotor position is converted into a digital value (0 – 1023) and the ARS-USB needs to know both ADC values that will be used as end limits. So you must turn the rotor to the CW or Right limit and press the “right button” labeled as CW Note: This value should be as close as possible to 1000-1022. In case the ADC value is far away to that value, you will need to adjust the trimmer for that input. Now turn the rotator to the CCW or Left limit. Just press the “left button” labeled as CCW, and the ADC value for this limit will be captured.