Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: How is the "Off-Axis" or Around Corner and Over Hill detection??? This is crucial for me! Thanks. ;-)
Document: I let it read 'car voltage' and it switches when it detects some threat.Some people are down on detectors but several times I have had ADVANCED warning of a wreck over the hill or around the corner because the Police cars let their radar run.It's kinda funny because the most I speed is 5 miles over the highway limit but I like to know whats ahead.Oh, did I say 4 years! LOL
I was thinking "Wow, this backward facing rear detection is awesome!" I figured I better keep a sane speed and when I crested the second hill and went around the curve, there was Mr Police Man #2 in his Chevy Suburban! Back to back Welcome Committee's and I missed them both!From VA, I went to NC, TN, KY and then on to the home of Escort, OH.
This is supposed to be learned after a couple drive by's per consumer and manufacturer reports. Along the way I believe it did pick up a radar gun but I was not able to find out where it came from. It was in a heavy construction area with plenty of hiding spots.I drove by a known speed camera (no camera, just the "your speed" indicator). The detector picked it up from around a corner to just barely line of site.
As I crested the hill at 583 feet, the detector went to a solid tone for a cop car which had someone pulled over seven tenths of a mile a way from the top of the hill. This is my ninth detector and none of the previous have had this kind of range, especially with Ka.I cannot comment on X band or Laser range, since they are not used in this area. Even the alarm systems do not use X band anymore around here.
Since it can be hard to tell the band apart by the sound alone, I sometimes don't know what band it's alerting me to. I find myself breaking over a false alert since the detector makes every alert seem like a cop is just around the corner. My final complaint is there is no "low X" setting. I like having X band on since I have come across a couple of cops using it, but don't want the weak false alerts all the time.
It is much better then the 8500. Very good at detection everything and talks to you, love that feature at letting you know what is going on around you.
Bought this very recently and in terms of detection it is better than the older models. For me personally what is important is detection around curves and bends as opposed to straight line. Here is a unique example of why auto learn was not good in this case. Remember though that this scenario is quite unique. Passport 9500ix with auto learn feature "ON".
I was issued two speeding tickets around Emporia during my trip to SC in April, '12. I decided to counter that with radar detectors. My experience follows. I purchased the 9500ix and Escort Redline (VA safe) with the intent of having that second ear or eye if you will when I drive my M5 about twice a year down from VA to SC/GA. I wanted an objective side-by-side detection and range comparism, and not to jump to "defective" unit conclusion with only one.
it is too bad you could not just pay the fee, and then just Bluetooth your I phone to the 9500 ix . I hope this info is helpful to you. Thanks....
Oh yeah and this magnificent device told me that were red light cameras on almost every intersection in NYC. thanks escort!
Answer: Through trees and canyons it's alerted and always provided enough time to slow down. The main thing is when it goes off that you slow down, don't wait for the detector to tell you what type of signal and its strength. Over rolling hills is it's weak point I'd say. There still enough time to slow down but sometimes its only a second or two for you to respond before you have line of sight with the highway patrol car. Once you are familiar with a particular route you'll know when you get hit if it's a cop or not. Ka band is always highway patrol fyi.