I am a brand new student pilot pursuing my private cert. I don't need to know this for a while, but I'm trying to learn about VOR navigation to enjoy my sim flights more, in the meantime.
My question is this: is the VOR frequency for a given station static/permanent? If you're looking at a chart from ten years ago (which, granted, I'm sure you're not supposed to be doing) and it shows a freq for a given station of 116.20, is that frequency likely to still be 116.20 for that station today?
That's a bit exaggerated of a timeline, but another way to ask this question is this: how often do VOR frequencies change? How recent does a chart have to be, for you to rely on a frequency as printed on that chart?