Installation Guide

4
1.3 Run Cable
Inside the store, run the enclosed 100 foot (30.48 meter) coaxial cable from the base station of
the HME audio system, through walls and ceiling as needed, to where the antenna cable
comes through the wall.
1.4 Make Connections
• Remove the antenna from the top of the HME base station, and connect the EC20 antenna
adapter cable in its place. One end of the cable has a connector that fits the connector on
the base station, and the other end has a larger connector.
NOTE: For optimum antenna coverage, the EC20 adapter cable should be connected directly
to the base station connector, not to a splitter.
• Connect the other end of the antenna adapter cable to the coaxial cable.
• Go to where the EC20 antenna cable comes through the outside wall into the building.
Connect the enclosed lightning arrestor to the EC20 antenna cable, and then connect the
coaxial cable connector to the other side of the lightning arrestor.
• Attach a grounding wire to the ground connector screw on the lightning arrestor, and run
the other end of the wire to the nearest grounding point and connect it there.
• Using the mounting bracket enclosed with the lightning arrestor to mount the lightning
arrestor on the wall is recommended. This will act as a strain relief to prevent pulling on the
antenna cable. Use two screws (not provided) to mount the bracket on the wall before
attaching the lightning arrestor to it. Tighten the bolt on the lightning arrestor to secure it to
the bracket.
2. TROUBLESHOOTING
If any dropouts occur in the HME audio system’s transmission and reception, try loosening the
lock knob on the EC20 Antenna and repositioning it, and locking it in place again. Then do
another walk test for transmission and reception with the antenna in its new position. If
necessary, continue readjusting the antenna position and repeating the walk test until the
dropouts no longer occur.
3. SPECIFICATIONS
Electrical
Frequency 2400-2500 MHz
Gain 8 dBic
Polarization Right hand circular
Beam width 65 degrees, vertical and horizontal
Impedance 50 Ohm
Max. input power 25 Watts
VSWR < 1.5:1 average
Lightning protection DC short
Mechanical
Weight 0.4 lbs. (.18 Kg)
Dimensions 4.5 x 4.5 x .9 inches (114 x 114 x 23 mm)
Operating temperature -40°F to 185°F (-40°C to 85°C)
Mounting Four ¼ inch (6.3 mm) screw holes
Figure 8. Lightning arrestor and bracket