TransCore 05531 User Manual
Encompass 4/4800 Multiprotcol Reader System Guide
4-32
Marking the Read Zone
The area where the Encompass 4/4800 Multiprotocol reads tags at the current RF
range is called the read zone. The antenna pattern, or read zone, of the Encompass 4/
4800 Multiprotocol Reader would look roughly like a pear-shaped balloon if you were
able to see it. When installing the Encompass 4/4800 Multiprotocol Reader, you
should first mark the unit’s read zone using the RF range set at the factory-default
maximum. You can later adjust the read zone using the techniques discussed in
range is called the read zone. The antenna pattern, or read zone, of the Encompass 4/
4800 Multiprotocol Reader would look roughly like a pear-shaped balloon if you were
able to see it. When installing the Encompass 4/4800 Multiprotocol Reader, you
should first mark the unit’s read zone using the RF range set at the factory-default
maximum. You can later adjust the read zone using the techniques discussed in
If two Encompass 4/4800 Multiprotocol Readers are installed near each other,
TransCore recommends that you fine-tune each reader for the ideal read zone before
connecting it permanently to sense input/sense output and communications cables. A
minimum of 2 MHz frequency separation between the two adjacent readers is required
for correct operation.
TransCore recommends that you fine-tune each reader for the ideal read zone before
connecting it permanently to sense input/sense output and communications cables. A
minimum of 2 MHz frequency separation between the two adjacent readers is required
for correct operation.
Required Materials
You need the following materials to mark the read zone:
•
Test tags, supplied by the TransCore dealer or distributor
•
Piece of windshield-type glass 0.190 to 0.230 inches (4.82 to 5.84 mm) in thick-
ness and approximately 12 inches (30.48 cm) square on which to attach the eGo
Windshield Sticker Tag
ness and approximately 12 inches (30.48 cm) square on which to attach the eGo
Windshield Sticker Tag
Caution
The eGo Windshield Sticker Tag has a reduced read range when not attached to
glass.
glass.
•
Audible circuit tester and 9V DC battery for circuit tester power as described in
the section
the section
•
Piece of chalk or roll of tape
•
Plastic or wooden yardstick for ATA tags
•
Vinyl electrical tape or hook-and-loop material
Procedures
Note: Using test tags that are not mounted to vehicles give a general idea of the read
pattern but the pattern will vary somewhat when actual vehicles with tags are tested.
Final adjustments must be made with tags properly mounted on a variety of vehicles.
pattern but the pattern will vary somewhat when actual vehicles with tags are tested.
Final adjustments must be made with tags properly mounted on a variety of vehicles.