FP Wireless LLC LRT01 Manuel D’Utilisation
5
USE OF THE KERI LRT TEST TRANSPONDER –
The Keri LRT Test Transponder is designed to help with proper location and orientation of the
antenna as well as the placement of the transponder in the vehicle. There is a window in the housing to
allow the LED Test Indicator to be seen.
allow the LED Test Indicator to be seen.
It is recommended to mount the antenna on a length of pipe that can be temporarily mounted
beside the road, in the general area that it must be permanently mounted. Position the antenna
horizontally and vertically so that if a line were drawn from the center of the antenna to the road, it
would touch about 20 feet away and 2 – 3 ft from the road edge.
horizontally and vertically so that if a line were drawn from the center of the antenna to the road, it
would touch about 20 feet away and 2 – 3 ft from the road edge.
Connect power to the receiver and to the transmitter. Hold the transponder in the orientation it
will be when mounted in the vehicle. Walk down the road toward the antenna holding the transponder 2
– 3 ft above the road surface. At some point you will see the Indicator LED blinking from red to green.
The transponder is now communicating with the rest of the system. You will also see the green LED on
the receiver blink off upon receipt of signal and the red LED blink off when data is shipped.
– 3 ft above the road surface. At some point you will see the Indicator LED blinking from red to green.
The transponder is now communicating with the rest of the system. You will also see the green LED on
the receiver blink off upon receipt of signal and the red LED blink off when data is shipped.
By watching the LED while moving the transponder through the area, you can quickly see the
area of coverage and adjust orientation if needed. When you are convinced that the temporary location
of the antenna is OK, proceed with the permanent installation. When properly installed, you can fine
tune the coverage area with vertical and horizontal adjustment of the antenna.
of the antenna is OK, proceed with the permanent installation. When properly installed, you can fine
tune the coverage area with vertical and horizontal adjustment of the antenna.
In some cases it may prove easier to fine tune if the transponder is mounted in the roadway at the
approximate place it would be in a car (or mounted temporarily in a car) and then adjust orientations by
watching the transponder LED. Do not attach the transponder to metallic surfaces for this test as it will
adversely affect its operation.
FCC NOTIFICATION
Changes or modifications to this product not specifically authorized by FP Wireless could void the
user’s authority to operate this equipment.
watching the transponder LED. Do not attach the transponder to metallic surfaces for this test as it will
adversely affect its operation.
FCC NOTIFICATION
Changes or modifications to this product not specifically authorized by FP Wireless could void the
user’s authority to operate this equipment.