Krysta,

Every radio manual I have looked at said to range check with the antena retracted, and you should be able to walk out 150-200'. Your claim that 15-100' is acceptable troubles me. I am not sure I would take off with a model that only has a 15-20 ' ground check. Most advise from the past has been to optimize you radio installation to make sure you get good ground range. Please let me know if all previous manuals are bogus and if it is indeed fine to fly a model that only has a 15' ground range.
I would think that a radio manufacture would hold the tollerance on the radios to something better than 15-100+ '.

Your comment that in the air range is impossible to determine????? I am flying a 2500.00 plane, if you tell me that you cant say what the range for your radio is, then I want my money back for the 9CAP I just got.