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9.9.2.2 The ADF receiver

Here is a typical ADF.

The pointer shows the relative

bearing to the beacon.

The inner scale can be turned with the HDG (heading) button.

(The pointer still retains its position, even if the scale is turned with the knob.

This allows you to set the aircraft's magnetic heading and set it where N is

indicated. You can then directly read the magnetic bearing to the radio beacon)

This ADF is combined with a display instrument, which you can set to the
beacon's frequency (here 0 2 3 6).

Below the display instrument there are some buttons (in the red rectangle),

which are also used in connection with bearing - you will hear about them during

the chapter.

It can be a little difficult to understand how bearing is done, so here is some basic

knowledge and some examples.

The pointer on the instrument will always point towards the radio beacon,
regardless of where you are in relation to the beacon, and what course you are

flying.

Flyveteori PPL(A)(UL)/LAPL Henning Andersen, Midtjysk Flyveskole© 2025 876