Beacon 978 Installation Manual
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4.0 INSTALLATION
4.1 BEACON INSTALLATION
1. Remove Beacon from packaging. Hardware accessories (nuts, studs, aluminum plate)
can be used for actual installation.
2. Use the aluminum plate to trace the pattern for holes on the belly of the aircraft or
somewhere with clear view to the ground towers. Install the Beacon978 at least 3 feet
away from other antennas, such as DME or transponder. If aircraft shell is not rigid
enough, you may use the aluminum plate provided on the inside to provide more rigidity:
Note: If the aircraft is made of fiber glass or any other non-metallic material. A square foot
aluminum plate must be placed on the inside of the aircraft on the base of the BEACON
3. GPS source. On Beacon model 978G, the GPS is embedded inside, so only an active
antenna connection is necessary. On Beacon model 978, an external GPS source is
required to be wired into the Cannon plug using RS232.
4. Follow the wiring diagrams below according to your Beacon model:
GPS Active Antenna (50ohm)
(only required on BEACON 978G)
Communication and Power to LCD
Power supply (9-32) and GND
GPS Position source COM2 (NOT
required on BEACON 978G)
Aluminum plate
Gasket
Aircraft airframe
AFT
FORWARD
