One additional tip: If you are at the point where you use FS to get familiar with the workings of radio navigation instruments, put the sim in "slew" mode. This allows you to "fly" (more like "hover") anywhere without worrying about those pesky laws of aerodynamics.
Turn the aircraft around the vertical axis and observe what happens to the ADF and VOR displays for instance. Or put it some miles out on an ILS approach and let the aircraft climb and descend in position. Repeat closer to the threshold.