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  #1  
Old July 31st, 2017
FaderJockey FaderJockey is offline
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Default GPS Calibration

My IX is off by 2mph compared to all other indications in my vehicle.

Is there some sort of calibration option for the GPS receiver?

Shown sitting in my garage:
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  #2  
Old July 31st, 2017
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TBNTX TBNTX is offline
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Quote:
Originally Posted by FaderJockey View Post
My IX is off by 2mph compared to all other indications in my vehicle.

Is there some sort of calibration option for the GPS receiver?

Shown sitting in my garage:
This isn't uncommon, especially if your detector doesn't have a clear view of the sky overhead. It means that your detector has a weak GPS signal.

Also, when driving, be mindful that the GPS on your detector is probably more accurate that the speedo on your car. This is due to the size of your tires, along with wear-and-tear.
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  #3  
Old July 31st, 2017
FaderJockey FaderJockey is offline
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Originally Posted by TBNTX View Post
Also, when driving, be mindful that the GPS on your detector is probably more accurate that the speedo on your car.
I wondered about that, but between the dash, two garmins, my phone and the IX, the IX is the only device that doesn't agree with the rest.

My only reason for having all the aforementioned devices going at once was to try to find where the discrepancy was.

Edit to add: FWIW, the indicated speed on my dash always matches several of the "Your speed" signs I pass regularly.
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Old July 31st, 2017
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Quote:
Originally Posted by FaderJockey View Post
I wondered about that, but between the dash, two garmins, my phone and the IX, the IX is the only device that doesn't agree with the rest.
Yep, understood. But it doesn't use the same GPS chips used in Garmin navigation devices and smart phones.

I have several Escort detectors (the 9500ix, Max, Max 2, Max 360 and - as of today - a Redline EX. All of them show zero when I'm outside and my car is motionless.

Try this. power on your detector using the coiled cord and hold it outside of the driver's window with nothing overhead. Does it read zero?
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Radar Detectors: Max 360c, Redline EX, Max 360, & others plus Escort Live!
LIDAR Defense: Escort LSP + Veil G4
Phone: Apple iPhone 6s (128 GB) + AT&T
CB: Midland 75-822
HAM: Yaesu FT-7900R, Baofeng UV-5R, UV-3R
Scanner: GRE PSR-500 (Triple-trunking)
GPS: iPhone 6s with GPS Plus and Waze
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  #5  
Old July 31st, 2017
FaderJockey FaderJockey is offline
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If I'm outside at a dead stop, yes, 0 is indicated. While doing some other work in the garage today is the first time I noticed it reading a speed while stationary so I snapped a picture. Of course, it makes sense that I was inside and GPS had no signal, my bad there.. but it was the fact that it displayed the same number it's usually off by that caught my attention more than anything else.
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Old August 1st, 2017
FaderJockey FaderJockey is offline
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So, no options for field calibration then?
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  #7  
Old August 1st, 2017
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Quote:
Originally Posted by FaderJockey View Post
So, no options for field calibration then?
No, not to my knowledge. The issue is caused by the car being inside, and not having a clear view of the sky.
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Radar Detectors: Max 360c, Redline EX, Max 360, & others plus Escort Live!
LIDAR Defense: Escort LSP + Veil G4
Phone: Apple iPhone 6s (128 GB) + AT&T
CB: Midland 75-822
HAM: Yaesu FT-7900R, Baofeng UV-5R, UV-3R
Scanner: GRE PSR-500 (Triple-trunking)
GPS: iPhone 6s with GPS Plus and Waze
Dashcam: Escort M1 and Thinkware F750
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  #8  
Old August 2nd, 2017
FaderJockey FaderJockey is offline
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Originally Posted by TBNTX View Post
No, not to my knowledge. The issue is caused by the car being inside, and not having a clear view of the sky.
Well, the issue of showing 2MPH in the garage was.

The issue of being 2MPH off from everything else while driving under open sky is not.
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  #9  
Old August 10th, 2017
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There is nothing to calibrate. It appears that you using a metallic windshield mount for the ESCORT iX. If so then that will affect the GPS signals entering the device which will cause GPS related issues. We recommend not having anything metallic between the top of the detector and the sky.
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Old June 19th, 2019
justAddVodka justAddVodka is offline
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The replies on this post sound like a lot of excuses and who shot John. The fact of the matter is the speed is wrong, period. I would attribute that to a lackluster or cheaply made GPS receiver. I would say bad software, but then they would all do this.

I have the same issue with my IXc. Parking lots, driveway, etc - shows 2mph when parked. That is obviously wrong.

Like original poster, every other gps device that I have is in disagreement with the detector. And guess by how much? That's right, 2mph. A calibration option would be nice in this case no?

As for the unfettered view of the sky, that's a weak argument at best; Escort's own mount blocks the view.

The gps problem is unacceptable in a $449 device, and I absolutely don't buy into anyone trying to excuse it away or blame the user.

I've had mine only a few days so luckily I can bring it back.

Escort's quality is seriously questionable; first a series of poorly tested designs that resulted in devices that cracked in half, and now obviously cutting corners on the GPS receivers.
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