That rather depends in which context you mean ! When I first saw this question - the transponder I immediately thought of - is the kind that's built-in to an aircraft. An aircraft transponder is a small box of electronics, that transmits a constant stream of data - including the plane's identity, height, speed and radar heading. The control tower sees the data alongside a corresponding 'blip' on the radar screen.
Transponder is invalid. Either the transponder is not activated (or has been deactivated for some reason), or you have insufficient funds to pay the toll, or your battery is low. If the transponder has been working fine and you know you have funds available, swap out the battery.
Locksmiths have transponder detectors that read if a transponder is active within a key. The device we have is called "TD3AII Transponder Detector" by Ilco.
The Daewoo had NO transponder on any of their vehicles from 1999-2002. Incorrect. The Daewoo Leganza had a transponder option in 2001+, as did the Lanos. The Nubria had a transponder option in 2000+.
Have you left behind your EZ Pass transponder?
You cannot use EZ Pass without a transponder. The transponder is necessary for the system to detect and process your toll payment.
no transponder on '94 model
No, you need a transponder to use EZ Pass.
No, you need a transponder to use EZ Pass.
In an aircraft hijacking scenario, the transponder should be set to 7500
The transponder code set on the aircraft's transponder would be 7700.
Car Key
As of 8/15/2011 Monthly Transponder Lease$2.75**Annual Transponder Lease$21.50*** http://www5.407etr.com/tolls/rate-chart-2011.html