Automatic Test Status Annunciator - INSIGHT STRIKE FINDER Pilot's Manual

STRIKE FINDER
On start-up Strike Finder automatically selects the 200 nm range view. This
ensures that distant weather is depicted, and not inadvertently ignored with
a shorter range selection.

Automatic Test Status Annunciator

Once the boot-up procedure is completed, the Strike Finder System
automatically carries out a self-diagnostic system test every minute. A
successful test is annunciated by the
of the display. The Test Status Annunciator or
clockwise in the four positions (as shown in Figure 5), to affirm the
successful completion of each test. So long as the Test Status Annunciator
is present, you can be confident of Strike Finder's weather depiction
capabilities.
Strike Finder performs this system test by sending a very small, precise,
test-pulse (imitating lightning
shielded harness to the mounted Sensor. Within the sensor, the test-
pulse is received by two
antenna signals are amplified, and then sent back to the display, where they
are digitally analyzed for proper system function and accuracy.
Figure 5. Display Showing Automatic Test Status Annunciator
10
Test Status Annunciator
strike data) from the Display through the
loop-type antennas, and a
DIGITAL WEATHER AVOIDANCE
"Walking Dot"
sense
PILOT'S
in the center
rotates
antenna. The
GUIDE