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ARK-9 ADF – NDB Nav

In this example, we will be tracking a primary NDB (freq. 870) and then track a secondary NDB (freq. 490). Once you have set up both your frequencies, you can easily switch ADF tracking between your primary and secondary NDB using the switch mentionedat step 6.

1. Select Co-Pilot seat by pressing “2”

2. On ICS-RADIO panel, set radio mode to PK1 (ARK-9).

3. Set ARK-9 mode to KOMP (Compass)

4. Set Frequency for first NDB (870) using the three rotaries for primary NDB. Fine tune in order to get a good signal strength.

5. Set Frequency for second NDB (490) using the three rotaries for secondary NDB. Fine tune in order to get a good signal strength.

6. Select Primary (LEFT) NDB to make the ADF track the primary NDB or Secondary (RIGHT) to track the Secondary NDB.

7. Select Pilot by pressing “1” and set HSI mode to “CB” (ARK-9)

8. Align white needle with white triangle and you will be heading towards the selected NDB.


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