Section 7--System Operation
7.3
To return to squelched audio, with "Aud" and "Un"
being displayed, again depress the MODE switch. The
LOCK window will be blank and the audio will be
squelched. Two seconds after the last switch entry, the
displays will return to their normal functions or
momentarily depress the HOLD switch to return to
normal operation immediately.
6. Set the range control to the desired level. Depress the
RANGE switch and the TARGET window will display
"rnG" and the PATROL window will display the current
level (1 - 6). Range level 6 is maximum range, range
level 1 reduces the Eagle II's range to its minimum
distance, typically 250 feet.
Depressing the DOWN (AUDIO) or UP (RANGE)
switches will decrease or increase the range level. The
displays will return to their normal mode after
approximately two seconds from the last switch entry or
momentarily depress the HOLD switch to return to
normal operation immediately.
7. Check the status of the fan interference filter by
momentarily depressing the RANGE switch. While
"rnG" is being displayed, depress the MODE switch to
display "FAn" in the TARGET window and either "On"
or "OFF" in the LOCK window. Press MODE again to
change the status of the filter. The operator may activate
or deactivate this filter depending on the amount of fan
interference being experienced in a particular patrol
vehicle. If the fan is interfering with radar operation,
activating the filter will reduce the amount of fan
interference.
The displays will return to their normal mode
approximately two seconds from the last switch entry or
momentarily depress the HOLD switch to return to
normal operation immediately.