Embraer EMB145 Operation Manual page 2612

NAVIGATION AND
COMMUNICATION
11 - IDENT MIC/OFF SWITCH
The Mode-S/IFF control panel has a two-position locking lever toggle
switch. The control provides the means to activate Ident function
remotely by keying the operator's microphone (MIC position) or
pressing the front panel IDNT push-button switch (OFF position).
12 - IDNT PUSH-BUTTON
A control panel function is supplied for enabling Identification of
Position (I/P) operation, either directly by the operator or remotely by
keying the operator's microphone. Momentarily pressing the IDNT
button control causes the ATCRBS reply and/or Mode S Uplink (UF)-4
and UF-5 replies to contain a Special Position Identifier (SPI) as an
identifier to the ground. The SPI supplies the ground station with more
positive identification of airplane position. This is typically activated
upon verbal command of the Air Traffic Controller. The IDNT control is
a momentarily activated button to inhibit continuous selection. When
pressure is removed from the momentary button, the IDNT control
returns to the OFF position.
13 - LOAD PUSH-BUTTON
The LOAD push-button is used to transmit a completed code display
on the LCD.
14 - MODE 1/2 ROTARY KNOB
OFF:
MODE 1:
MODE 2:
MODE 1+2: Enables Modes 1 and 2 operation.
15 - MODE 4 CONTROL SWITCHES AND KNOB
The Mode 4 operation controls are disabled for this airplane.
Page
8
2-18-80
AIRPLANE
OPERATIONS
MANUAL
Disables Modes 1 and 2.
Enables Mode 1 operation. Mode 1 control is provided
for pilot or operator selection of 32 response codes.
Code selection range is 00 to 73, inclusive.
Enables Mode 2 operation. Mode 2 control is provided
for pilot or operator selection of 4096 response codes.
Code selection range is 0000 to 7777, inclusive.
Code
01
REVISION 38