I thought it was 1 mile each side of the arc, but I try to stay within .5! I could be wrong on that.
you can use the 60 to 1 rule to determine distance on the arc. First you want to know how many miles from the station you are(which arc) then you want to figure out how many radials per mile there is. Then based on the radials you can determine miles.
I think the G means GPS distance, but I not 100% sure.
Hey its better to ask on a forum than sit in the interview and look like a dumba$$. Judging by your other 8 post insanelyradical might need to cfi some more to get some humility, not everyone knows everything man. relax alittle, unless you are just trying to get your post count up.