Placement of E-ZPass Transponder

armoredpig

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Stuck mine right onto the black dot-matrix. No problems
 

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Are they embedded in the surface of the glass? I can’t feel any edge with my fingernails.

Never mind. Found some descriptions on Wikipedia and elsewhere. Melted into the surface of the glass. Very cool. Not going to peel off of the glass when I remove the EZ-Pass adhesive.
yep baked in ... fused with the glass more or less
 


RANGER_MARC

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I don't commute daily where it's needed that often, but when needed, I just set it in the tray on the dash, have had no issues with it getting read
This is the simplest solution, and the best, at least for people like me, who won't be using it very often, only a few times a year during local vacation trips.
 

VegasP11

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Wow, the EZ-Pass is huge. The K-Tag is just a tiny sticker.
20201128_111341.jpg
 

slowmachine

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Wow, the EZ-Pass is huge. The K-Tag is just a tiny sticker.
The previous version was more than twice the size of the current transponder. Battery density is increasing, so service life is still 8-10 years. The K-Tag must use a different technology.
 

r1ch999999

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The previous version was more than twice the size of the current transponder. Battery density is increasing, so service life is still 8-10 years. The K-Tag must use a different technology.
Typically and RFID, like the EZ Pass, needs no power, the RF field it passes through is enough to power the device. I suspect the EZ Pass only has a battery to allow faster reading, if you stopped and waited it would probably work without a battery at all. At the very least the field could trigger a smaller RFID that then turns on the battery power to send a signal.

RFIDs are getting super small, and the range is increasing. It won't be long before you could have one the size of a grain of rice that would have a decent range. Imagine that in the next Bond movie, someone eats a piece of fake rice and Bond tracks them with his watch.
 

slowmachine

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Typically and RFID, like the EZ Pass, needs no power, the RF field it passes through is enough to power the device. I suspect the EZ Pass only has a battery to allow faster reading, if you stopped and waited it would probably work without a battery at all. At the very least the field could trigger a smaller RFID that then turns on the battery power to send a signal.

RFIDs are getting super small, and the range is increasing. It won't be long before you could have one the size of a grain of rice that would have a decent range. Imagine that in the next Bond movie, someone eats a piece of fake rice and Bond tracks them with his watch.
We have a slowly-increasing number of high-speed toll stations, where you drive through at 65 MPH instead of the older 25 MPH installations. I never thought of it before, but this may have something to do with the battery-powered transponders.
 

HTX1811

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This is where my EZ-Tag for Texas Tolls is located. Zero issues and out of view. It’s just a sticker, not a giant box like the one in the pic. I can zip through the fast lane doing 65 no problem.
Never a problem

51C9D156-26E0-4E3C-A5F6-19AB0CFBC9C4.jpeg
 
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ch47dmechanic

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I've always placed my FasTrak toll tags to the upper left of the rearview mirror in my trucks and the Ranger is no exception. Never had any issues with the frit, even when removing them.

IMG_5464.jpeg
 

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For those of you who use E-ZPass, where have you placed your windshield transponder? It obviously can't be located above the mirror. There is some sort of visual screening built into the windshield around the mirror. Will this cause interference with the transponder? I would love to see some pictures of your installation. Thanks.
I leave mine in that little tray on top of the dash. Never had a problem with it.
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