Avionics FAQs

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Avionics FAQ

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Why can't the KI-209A be used with the KLN-90B GPS?

The KI-209A does not have an OBS resolver inside the indicator to provide selected course information to the GPS. Instead, it has a Sine/Cosine potentiometer. To see the Sine/Cosine potentiometer and properly calibrate to it, it requires more than the +/- 10 degrees of adjustment that a KLN-90B has. The KLN-89B and KLN-900 has +/- 180 degrees of adjustment. Therefore, the KI-208A and KI-209A are limited to the KLN 89B and KLN 900.