User manual

INSTALLATION and OPERATING MANUAL FLARM-NAV Display and Navigation System
Version 1.13 Page 8 of 25 January 2012
Speaker output
Speaker audio is rated at 1 Watt into 4 Ohms, using an 8 Ohm speaker lowers the audio slightly. The
supplied speaker is suitable for most non-motorised installations. If using in a powered aircraft we suggest
feeding the audio via a splitter/combiner or using the aux input on a radio or intercom. Some level control
circuitry may be required such as an op amp or resistive divider.
Figure 1 Basic Flarm-NAV installation