TransCore 05531 User Manual
Encompass 4/4800 Multiprotcol Reader System Guide
4-22
Mounting the Antenna
If you are using the Encompass4/4800 Multiprotocol Reader that requires an external
antenna in permanent installations, the antenna should be positioned as close as possi-
ble to the Encompass 4/4800 Multiprotocol Reader. Long cable runs increase system
sensitivity to noise. See
antenna in permanent installations, the antenna should be positioned as close as possi-
ble to the Encompass 4/4800 Multiprotocol Reader. Long cable runs increase system
sensitivity to noise. See
Table 2-6 on page 2-20
for maximum RF cable lengths.
This section provides guidelines for mounting antennas.
Mounting the Antenna Curb-Side
Some site designs, for example those with curb-side antennas, require that the antenna
be mounted on a round pole. The pole must be a minimum of 2 inches (5 cm) in diam-
eter and should extend approximately 8 feet (2.4 m) above the pavement level. The
pole must be installed according to local building codes.
be mounted on a round pole. The pole must be a minimum of 2 inches (5 cm) in diam-
eter and should extend approximately 8 feet (2.4 m) above the pavement level. The
pole must be installed according to local building codes.
Procedures
Use the following guidelines to mount an antenna on a curb-side round pole.
To mount the antenna to a curb-side pole
1.
Follow the manufacturer’s directions to attach the antenna assembly to the pole
approximately 8 feet (2.4m) above the pavement surface.
approximately 8 feet (2.4m) above the pavement surface.
2.
Tighten slightly so that you can adjust the antenna left or right but not so slightly
that the antenna slides down the pole.
that the antenna slides down the pole.
3.
Adjust the assembly by pointing the antenna to the middle of the area where tags
will be read, and while in this position, tighten all screws and fastenings slightly.
will be read, and while in this position, tighten all screws and fastenings slightly.
Note: Adjust the antenna to provide the most direct line of sight to the tags.
Figure 4-14 illustrates front and top views of a pole-mounted antenna with the approx-
imate measurements for sites where tags would be mounted on the interior driver-side
windshield. eGo Windshield Sticker Tags may be mounted on the interior upper center
or upper driver-side corner of the windshield.
imate measurements for sites where tags would be mounted on the interior driver-side
windshield. eGo Windshield Sticker Tags may be mounted on the interior upper center
or upper driver-side corner of the windshield.
Note: Determine the read zone before you tighten all screws and straps permanently.
Refer to the section
Refer to the section
.
After mounting the antenna, you must connect it to the Encompass 4/4800 Multiproto-
col Reader. Follow the procedures described previously in the section
col Reader. Follow the procedures described previously in the section
.
Caution
To avoid damage to the Encompass 4/4800 Multiprotocol Reader, you must connect
the antenna before applying power to the reader.
the antenna before applying power to the reader.