2 AN/APX-118 COMMON DIGITAL TRANSPONDER (CXP) OPERATOR ORIENTATION TRAINING Purpose: Give the IP enough information that aircraft with the APX 118 installed

2

Quick Reference to operate APX 118 (Mode 3/A and C). 1. Turn Master rotary knob to STBY. 2. Wait 30 seconds for RCU to run PUBIT. 3. Acknowledge any faults by pressing FAULT button. Unacceptable Faults: XP NOGO

RCU NOGO ALT NOGO If both UPANT and LOANT NOGO

4. Press the M3/A button to activate Mode 3. (If the 3 is not displayed in the lower window) 5. Press the MC button to activate Mode C. (If the C is not displayed in the lower window) 6. Press left or right ARROW button to access Mode 3/A code display field. 7. Press numeric buttons to edit Mode 3/A code to desired setting. 8. Press ENT to save to Mode 3/A code.

Note: If you accidentally get lost in another tier or sub-menu press the home button to get back to the default page M3/A.

AN/APX-118 COMMON DIGITAL AN/APX-118 COMMON DIGITAL TRANSPONDER (CXP) OPERATOR TRANSPONDER (CXP) OPERATOR

ORIENTATION TRAININGORIENTATION TRAINING

Purpose:Purpose: Give the IP enough Give the IP enough information that aircraft with the information that aircraft with the APX 118 installed will not have to APX 118 installed will not have to be rejected.be rejected.CXP OverviewCXP Overview

• System Intro / OrientationSystem Intro / Orientation

Operating ProceduresOperating Procedures• Crypto Load Procedures – Crypto Load Procedures – NOT COVEREDNOT COVERED• BIT checksBIT checks• RCU Menus / Key Board OperationRCU Menus / Key Board Operation

QuestionsQuestions

Purpose:Purpose: Give the IP enough Give the IP enough information that aircraft with the information that aircraft with the APX 118 installed will not have to APX 118 installed will not have to be rejected.be rejected.CXP OverviewCXP Overview

• System Intro / OrientationSystem Intro / Orientation

Operating ProceduresOperating Procedures• Crypto Load Procedures – Crypto Load Procedures – NOT COVEREDNOT COVERED• BIT checksBIT checks• RCU Menus / Key Board OperationRCU Menus / Key Board Operation

QuestionsQuestions

5

RCU OPERATIONS

REMOTE CONTROL UNIT

(Control Head)

AN/APX-118 COMMON DIGITAL AN/APX-118 COMMON DIGITAL TRANSPONDER (CXP)TRANSPONDER (CXP)

RT-1836(C)RT-1836(C)

The RT installed with The RT installed with antennas and the RCU, the antennas and the RCU, the transponder provides transponder provides identificationidentification, , altitudealtitude and and surveillancesurveillance reporting reporting

The transponder provides The transponder provides operational capabilities for operational capabilities for Mark XII IFF.Mark XII IFF.

1. SIF Modes 1, 2, 3/A, and C1. SIF Modes 1, 2, 3/A, and C2. Mode 4 when programmed2. Mode 4 when programmed3. Mode S (levels 1, 2, and 3 capable).3. Mode S (levels 1, 2, and 3 capable).

RT-1836(C) INSTALLED IN THE RT-1836(C) INSTALLED IN THE AIRCRAFTAIRCRAFT

LOCATIONLOCATION

CH-47 ChinookCH-47 Chinook

AN/APX-118 COMMON DIGITAL AN/APX-118 COMMON DIGITAL TRANSPONDERTRANSPONDER

REMOTE CONTROL UNIT (RCU)REMOTE CONTROL UNIT (RCU)

53/A 41 2 C S

M4/M5REPLY

RADTEST

M4/M5CAUTION

MICIDENTFAULT

M3A 1200 The front panel of the RCU contains pushbuttons, rocker and rotary switches, a backlit control/data entry keypad, and a fault switch/indicator.

REMOTE CONTROL UNIT (RCU)REMOTE CONTROL UNIT (RCU)• Top Display Window

Bottom Display Window Rocker switch

•Keypad

FAULT

Mode 4 Rotary Knob

Master Rotary Knob

OPR-10

RCU OPERATIONSRCU OPERATIONS

• ARROW KEYSUp and Down

Left and Right

Provides access tochange data and

entry to the differentTiers and Sub-Menu’s

OPR-11


To apply powerplace the MASTER rotary knob from the OFF position to the STBY position.

OPR-12


NO LINK When the transponder is turned on it goes into a POWER UP BUILT IN TEST (PUBIT) for approximately 30 seconds.

DO NOT PRESS BUTTONS, TURN KNOBS, or in any other way FONDLE RCU;

It WILL screw-up the PUBIT and you

WILL get a FAILURE Code!!!

OPR-13


NO LINK When the RCU is first turned on (STBY) a NO LINK message will appear on the upper display window of the RCU.

NO LINK indicates a lack of communication between the transponder and the RCU.

OPR-14


NO LINK The NO LINK message will extinguish once the PUBIT is completed and the communication link has been established between the transponder and the RCU.

If the communication link between the transponder and the RCU has not been established within 30 seconds, a transponder fault will be displayed.

OPR-15


Once the NO LINK message has extinguished –

the UPPER Display window on the RCU should default to the Home Menu (M3/A 0000) if no faults have been detected.

If FAULTS were detected…

53/A 41 2 C S

M4/M5REPLY

RADTEST

M4/M5CAUTION MICIDENTFAULT

M3/A 0000

““FAULT” FAULT” INDICATORINDICATOR ““FAULT” FAULT” INDICATORINDICATOR

FAULT Indicator:Illuminates to indicate a system fault

When the FAULT button is pressed the indication

extinguishes.

When the FAULT button is pressed the indication

extinguishes.

FAULT

The FAULT is still present!!

Although the operator has acknowledged the Fault…

FAULTS• Some of the FAULTS that may be noted are:

– XP NOGO– RCU NOGO– CRYPTO NOGO– TCAS NOGO– ALT NOGO– ADLP NOGO– UPANT NOGO– LOANT NOGO– BATTERY NOGO– TOD NOGO

UNACCEPTABLE FAULTS

• Unacceptable Faults for Training are:

– XP NOGO (Transponder Inop)– RCU NOGO (Control Head Inop)– ALT NOGO (Mode C Inop)– UPANT AND LOANT NOGO

(Both Antennas Inop)

Refer to Quick Reference Sheet!

OPR-19


If a FAULT was detected during Power Up Bit (PUBIT), the operator must acknowledge the fault by selecting the FAULT button on the RCU.

53/A 41 2 C S

M4/M5REPLY

RADTEST

M4/M5CAUTION MICIDENT

CRYPTO NOGO

FAULT

A Periodic BIT (PBIT) sequence begins following the completion of PUBIT.

This Test will run every 5 minutes continuously monitoring the systems performance as well as operation.

OPR-20


53/A 41 2 C S

M4/M5REPLY

RADTEST


The fault will be cleared from the upper display window, however the fault will still exists in the BIT Status sub-menu.

M3/A 0000

(This particular fault indicates no Mode 4 codes loaded. When this occurs, the M4/M5 CAUTION will stay illuminated in the lower display window for as long as Mode 4 is still active)

To turn Mode 4 off, the operator must select the M4 key; and then select the ENT key on the keypad.

OPR-21


53/A 41 2 C S

M4/M5REPLY

RADTEST


When the Mode 4 light in the lower display window has extinguished, this indicates that Mode 4 is now inactive.

NOTE: It is recommended that Mode 4 be properly loaded prior to power up and it should never be turned off prior to or in flight.

M3/A 0000

OPR-22


53/A 41 2 C S

M4/M5REPLY

RADTEST


To enable SIF modes 1, 2, 3/A, C and Mode S, select the modes using the RCU Keypad. The mode will be illuminated in the lower display window indicating it is active.

M3/A 0000

Example: Select the M1 Key on the keypad to activate Mode 1.

OPR-23


53/A 41 2 C S

M4/M5REPLY

RADTEST

M4/M5CAUTION MICIDENTFAULT Mode 1 is now active.

M3/A 0000

Example: Select the M2 Key on the keypad to activate Mode 2.

OPR-24


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000

Modes 1 and 2 are now active.

Example: Select the M3/A Key on the keypad to activate Mode 3/A.

OPR-25


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000

Modes 1, 2 and 3/A are now active.

Example: Select the MC Key on the keypad to activate Mode C.

OPR-26


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000

Modes 1, 2, 3/A and Mode C are now active.

Example: Select the MS Key on the keypad to activate Mode S.

OPR-27


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000

Modes 1, 2, 3/A, C and Mode S are now active.

European Control of Mode SEuropean Control of Mode S

• Unique ICAO 24-bit aircraft address• Automatic reporting of aircraft identification (flight plan call sign)• Flight status (airborne / on the ground)• Pressure altitude reporting in 100ft increments

Elementary Surveillance31 March 2003 to 31 March 2007

MODE “S” OVERVIEWMODE “S” OVERVIEW

IFF Code

Mode “S” Digital Read-out

MS 534045728905683AirALT 200ft

OPR-30


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000

Select the left or right arrow key to enter the field to edit M3 Code.

OPR-31


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 0000M3/A Code:Using the Keypad, enter the Mode 3/A code 1200. A flashing character will indicate the operator is in the edit mode and this will be the current digit being entered.

NOTE: Once in the edit mode, the operator has 10 seconds to enter the correct digit.

Enter the number 1 on the keypad.

OPR-32


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 1000

M3/A Code:A flashing character will indicate the operator is in the edit mode and this will be the current digit being entered.


OPR-33


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 1200



OPR-34


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 1200



OPR-35


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 1200M3/A Code:A flashing character will indicate the operator is in the edit mode and this will be the current digit being entered.

Select the ENTer key on the keypad to save the changes.

OPR-36


53/A 41 2 C S

M4/M5REPLY

RADTEST


M3/A 1200 M3/A Code:Mode 3/A code 1200 has now been updated and the change has been saved.

Warning!!

Ensure 3/A and C are displayed!!!

53/A 41 2 C S

M4/M5REPLY

RADTEST


The “ENT” key saves any changes that are made to the

menu options when in the Normal operating state.

The “ENT” key saves any changes that are made to the

menu options when in the Normal operating state.

ENT KeyENT Key

OPR-38


If you were to select the UP or DOWN Arrow Key you would begin to scroll through the first Tier of the different Menus.

XP RCU CRYPTO TCAS ALT ADLP UPANT LOANT BATTERY TOD LGHT SRC LGHT BAL RCU FIT TEST CXP SRA

RCU SRA XPSWVER RCUSWVER RT ETM

M1 (CODE) M2 (CODE) AUDIO RPYLIGHT ADDR (MS ADDRESS) ID (MS) MISSION (M5) TOD (MS) LAST TOD (MS) DATE (M5) M5 PIN NATL ORIG (M5) KEYREM4 (M4) KEYREM5 (M5) MSADDR (OCTAL/HEX) MS DATA MS AIR X PULSE TCAS MENU PWRDOWN ANT BIT STAT

FLGTID DSPLY TCAS ADS ALIMA (FT) ALIMB (FT) TCAS IALT INTRFILE TCASSENS TRAFF TCAS SHORT TCAS LONG

CXP SRA BIT STATUS (GO/NOGO) MENUCXP SRA BIT STATUS (GO/NOGO) MENU

XPPS (POWER SUPPLY) XPRT (RT) XPSBC (SINGLE BOARD COMPUTER) XPECM5 (EMBEDDED CRYPTO M4/M5) XPSP (SIGNAL PROCESSOR)

BIT (STATUS)BIT (STATUS)OPERATE (DEFAULT) MENU

M3/A (CODE) AQC SQTR ADS SQTR M5L2SQTR TCRNG CAUTION PRE-SET

FP (FRONT PANEL) MC (MICROCONTROLLER) BC (BOTTOM COVER)

PRE-SET MENUPRE-SET MENU

RCU SRA BIT STATUS (GO/NOGO) MENURCU SRA BIT STATUS (GO/NOGO) MENU

TCAS MENU (NOT USED)TCAS MENU (NOT USED)

OPR-44


HOME KEYHOME KEY

If you get lost in a Tier or Sub-menu, you can return to the default M3/A HOME PAGE by pressing the HOME button.

OPR-73


53/A 41 2 C S

M4/M5REPLY

RADTEST


?? QUESTIONS ??

This concludes this Lesson.

Questions?

Documents

2 AN/APX-118 COMMON DIGITAL TRANSPONDER (CXP) OPERATOR ORIENTATION TRAINING Purpose: Give the IP enough information that aircraft with the APX 118 installed