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Planning the Installation
CHAPTER 3: PLANNING THE INSTALLATION
3.1 Installation Overview
Typically, a BDA installation follows these steps:
1. Choose a mounting location for the exterior antenna. The recommended Yagi directional antenna is, pointed directly
at the radio tower (line of sight). The antenna is typically mounted on the wall or roof of the side of the building with the
strongest signal. A grounded lightning protector is required between the exterior antenna and the BDA.
2. Next, choose the mounting location of the interior antenna(s), being sure to take separation requirements into account.
Long, narrow spaces benefit most from directional flat-panel antennas, while more square spaces benefit more from
omnidirectional dome antennas.
3. Choose where to mount the BDA. This should be in a secure indoor location near a grounded power source.
4. Map the cabling route between the exterior antenna and the BDA and between the BDA and interior antennas.
5. Proceed with a ‘soft installation’ connecting components without securing their placement until testing can be completed.
6. Power on the BDA and perform configuration and testing explained in Chapter 5.
7. Complete installation by securing the placement of the BDA, antennas and other components,
Important Installation Safety Precautions:
• The exterior antenna must not be co-located or operating in conjunction with any other antenna.
• Always use a properly installed SureCall lightning protector between the exterior antenna and the BDA.
• Always power off the BDA before working on the roof of the building, or anywhere in close proximity to the external
antenna.
• Comply with all antenna separation requirements to prevent signal oscillation.
CAUTION: FAILURE TO PROPERLY INSTALL A LIGHTNING PRO-
TECTOR CAN RESULT IN DAMAGE TO THE BDA, ANTENNAS,
AND WIRING.
CAUTION: SIGNAL OSCILLATION CAN CAUSE RADIO INTERFER-
ENCE WITH RADIO TOWERS AND RESULT IN CIVIL AND/OR
CRIMINAL PENALTIES.
3.2 Exterior Antenna Overview
The Yagi antenna receives and transmits signals over a focused area. It must be aimed directly (line of sight) toward the radio
tower that provides the strongest signal to the building. The exterior antenna and mast (if any) must be mounted in a location
that meets all of the following criteria:
Summary of Contents for GuardianA
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