TransCore encompass 4, Manual

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Chapter 4 Installing the Encompass 4 Reader
TransCore Proprietary
4-65
Input the following commands in the order provided in “Table 10 Commands for Bench Testing” on page 4-40 .
Commands include those to switch to command mode, set operational mode, turn on RF, and return the reader to
data mode.
5. Secure the ATA or IAG test tag to the end of the yardstick using electrical tape or hook-and-loop
material or affix the test eGo Plus or eGo WST to the glass. Be sure the tag polarization (horizontal or
vertical alignment) matches that of the Encompass 4 Reader or antenna used. If using an eGo Plus-
type test tag or eGo WST, the glass should be in front of the tag (between the tag and the reader or
antenna).
6. Stand directly in front of and about 5 feet (1.5 m) away from the Encompass 4 Reader or antenna
( Figure 49 ). Hold the stick or the piece of glass so that the tag is positioned at a height and angle
consistent with a tag installed on a vehicle. The test tag should cause the audible tester to sound.
Additionally you can correctly mount a tag to a vehicle and verify tag read zone performance with the
tag on the vehicle since some reflections can enhance the read zone distance.
NOTE: If you hold the test tag in your hand, your hand absorbs the RF signal and the test results are
not accurate.
7. Mark the spot with chalk or tape.
8. Move to the left until the sound stops and mark the ground with chalk or tape at the location of the tag
when the sound stopped.
Figure 49 Sample Read Zone Marking Pattern