# Are VOR frequencies static?

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?

• FYI, VORs use frequencies in the very high frequency (VHF) band from 108.00 to 117.95 MHz. – JScarry Oct 13 '17 at 23:35
• I don't have evidence or official source for this, but my experience is it almost never change. However speaking of old aviation charts, the radials do change due to magnetic variation - if something is 253 degrees ten years ago, it could be 258 degrees now. If it is a runway, it would be RWY 25 back then but RWY 26 now. – kevin Oct 14 '17 at 0:24
• I can point to A LOT of VORs that have had the same freq for >15yrs. – acpilot Oct 14 '17 at 18:44