Please take a look at this to understand my question:
In the lower right hand corner of the approach chart for LAX RWY 25R, there's a circle that says around it MSA LAX VOR 25nm. In the center is the symbol for a VOR station, and then it's divided into 3 sections, each with a box with an altitude in it and radials as dividers. What I want to know is what this whole circle thing means. I've seen it on all the charts I've looked at, and it's the only thing I don't understand. Thanks to anyone who can answer this.