# How do I find the magnetic bearing to the station in this question?

In my PPL trial test, I have the following question regarding an NDB:

Consult Figure 3, Illustration 6. On a magnetic heading of 160°, the magnetic bearing to the station is:

1. 045°
2. 205°
3. 165°
4. 270°

(See the attached figure, illustration 6)

Looking at the figure, I see a needle pointing to 045°. Therefore, I conclude that when my heading is magnetic north (as the heading of the aircraft is shown in the figure), the magnetic bearing to the station would be 045°. Consequently, I deduce that if I am heading 160° magnetic, then the bearing to the station would be 115° to my left, i.e. 360° - (160° - 45°) = 245°.

The reason I think this is because, as I am turning eastwards the magnetic bearing to the station will decrease until I reach a heading of 45° magnetic at which point the magnetic bearing to the station would be 0°. As I turn eastwards more, the magnetic bearing to the station would flip around at 360° and keep decreasing. I need to make a starboard turn 160° - 45° = 115° more to reach the desired heading 160°, so by that time the bearing would decrease from 360° by 115° to reach 360° - 115° = 245°.

Nevertheless, the test claims that the correct answer is 205° (which I'm guessing is, for some reason, calculated as 160° + 45°). Could you kindly explain what is wrong in my thought process or interpreting the ADF instrument?

• Based on the correct answer below, it is now clear to me that the instrument depicted is an ADF, not a VOR, as it depicts the relative beating TO the station, but with a Fixed Compass Card (see navfltsm.addr.com/ndb-nav-adf-1.htm). The magnetic bearing to/from the station does not change with heading. Commented Oct 2, 2018 at 7:27
• I edited your question to fix some terminology: the pictures are of an ADF, not a VOR receiver. A VOR would have a to/from flag. Commented Dec 20, 2018 at 3:13