Installation Guide

2
Figure 2. Typical EC20 Antenna coverage area
1. INSTALLATION
1.1 Determine Location
Determine the best location for mounting the EC20 Antenna, with the following considerations.
• Coverage area —
The optimum coverage area spans
out at 65 degrees in a cone shape,
extending outward in front of the
antenna approximately 130 feet
(39.62 meters). The mounting
bracket provided with the antenna
will allow it to be pivoted and locked
into the best position for the
required coverage area.
• Cable routing —
The 100 foot (30.48 meter) coaxial cable must be able to be routed from the base station,
through walls and ceiling as needed, to reach the antenna. Note that the coaxial cable is
thick and relatively stiff, making it difficult to route around corners and through tight openings.
• Esthetics —
Some stores restrict the location of equipment mounted on the outside of stores, with
regard to distance from signage or visibility to customers, for esthetic reasons.
• Walk test —
To determine the best location for mounting it, you must do a walk test before
permanently mounting the EC20 Antenna. Remove power from the HME base station
and remove one of the base station antennas. Temporarily connect the enclosed antenna
adapter cable where you removed the base station antenna, and then connect the coaxial
cable to the adapter cable as shown in Figure 3. Route the coaxial cable to the area where
you would like to mount the EC20 Antenna, and connect the lightning arrestor and antenna
to the cable connector. Place the antenna temporarily in a position with its front surface
pointing to the area where its extended coverage is needed. Return power to the base
station. With two people using COMMUNICATOR
®
s (with fully charged batteries) and
pressing button B to communicate with each other, check transmission and reception
around the menu board and throughout the area where speed-team operators will walk.
If necessary, move the antenna and repeat the walk test until you find the location where
the best transmission and reception occur. You can now permanently mount the EC20
Antenna in accordance with the following instructions.
HME
base station
Figure 3. Diagram of EC20 cable routing and connections
Ground wire
(not provided)
Coaxial cable
100 ft.
(
30.48 meters
)
Antenna
adapter cable
3 ft. (.91 meter)
Lightning
arrestor
EC20
Antenna