VIAVI APM-424 MK XII/XIIA flight line test set

VIAVI / Series · Military Avionics

VIAVI APM-424(V)4 MK XII / APM-424(V)5 MK XIIA Flight Line Transponder and Interrogator Test Sets

Hand-held, battery-powered flight line test sets for IFF transponder and interrogator testing, including Mode S, Mode 5 and ADS-B Out.

Displays: Internal: 20 character by 4 line alphanumeric OLED, 0.197” character height with green Accept, red Reject, and battery status indicators
Controls: 3 buttons: test sequence advance, test sequence repeat, and test result data
Remote: Windows Based Remote Interface GUI

View Models Datasheet

Overview

The VIAVI APM-424 MK XII/XIIA flight line test sets test transponder and interrogator performance on a variety of aircraft, ground and ship platforms. The APM-424(V)5 is a Mode 5 and ADS-B performance and capability upgrade to the TS-4530 and APM-424 legacy test sets.

The family is offered in two standard configurations: the APM-424(V)4 MK XII Test Set and the APM-424(V)5 MK XIIA Test Set. The APM-424(V)4 is fully compliant with DoD AIMS standards for testing Mark XIIA performance of Mode 4 equipment, DO-260B ADS-B Out performance, and ICAO Annex 10 international standards for Mode S ELS/EHS performance, and is Mode 5 upgradable. The APM-424(V)5 adds Mode 5 Level 1 and Level 2 testing and supports both DoD AIMS 04-900A Option A (KIV-78) and Option B (KIV-77) crypto appliqués.

Both units closely replicate legacy operation so that existing procedures can continue to be used. A 20-character, 4-line display shows data and parametric measurements, and for legacy test modes the menu structure and displayed data format have been retained so that minimal changes are required of fielded procedures.

Operation is one-piece, three-button point-and-shoot Go/No-Go, with self-diagnostics. Parametric test results can be stored and downloaded to a PC for review or maintenance logging. The product is controlled for export under the International Traffic in Arms Regulations (ITAR).

Models in this series

Model	Description
APM-424(V)4	VIAVI APM-424(V)4 MK XII Interrogator/Transponder Flight Line Test Set (Including Mode S ELS/EHS) Hand-held MK XII flight line test set for transponder and interrogator testing, including Mode S ELS/EHS, TCAS and DO-260B ADS-B Out.	Details →
APM-424(V)5	VIAVI APM-424(V)5 MK XIIA Flight Line Test Set for Transponders and Interrogators Hand-held MK XIIA flight line test set for transponder and interrogator testing, including Mode 5, Mode S ELS/EHS and ADS-B Out.	Details →

Key Features

Certified to DoD AIMS 17-1000
Supports DoD AIMS 04-900A Option A (KIV-78), Option B (KIV-77) and SIT-2010 crypto appliqués
Transponder test modes 1, 2, 3/A, C, S (EHS/ELS), 4, Mode 5 (Level 1 and 2)
Interrogator test modes 1, 2, 3/A, C, S, 4, Mode 5, TCAS, ETCAS (Level 1 and 2)
DO-260B compliant; ADS-B Out test capability
Accurate GPS time/date acquisition (via GPS antenna, crypto or manually)
Hand-held and battery powered
One piece, 3-button point and shoot Go/No-Go operation
Self-diagnostic
Automated MTL measurement
Parametric test results can be stored for downloading to a PC for review or maintenance logging
Closely replicates legacy TS-4530 and APM-424 operation for use of existing procedures

Specifications

User Interface

Displays	Internal: 20 character by 4 line alphanumeric OLED, 0.197” character height with green Accept, red Reject, and battery status indicators
Controls	3 buttons: test sequence advance, test sequence repeat, and test result data
Remote APM-424(V)5	Windows Based Remote Interface GUI

Transponder Testing

Test Range	10 to 150 ft
Modes 1, 2, 3A	Display code, identification, and emergency status
Mode C	Displays altitude
Mode 4	Stand alone operation, but must be filled with challenge video patterns from COMSEC, displays code A or B and verification bit status. Requires KIR or KIV with adapter to operate
Mode 5 APM-424(V)5	Housing for 04-900A Option A and B; Requires Mode 5 crypto appliqué to operate. Interrogates with Mode 5 Level 1 Formats 0-9 and Mode 5 Level 2 Formats 16-23, decodes and displays reply/report data
Mode S	Interrogates with: UFO, UF11 (all call), UF4 (altitude), UF5 (identity), UF4 asking for DF20 (altitude), UF5 asking for DF21 (identity), containing Datalink capability report, DF16 (long TCAS surveillance) Decodes and displays Mode S ELS DAP’s and EHS DAP’s (BDS 1,0; 1,7; 1,8-1,C; 2,0; 3,0; 4,0; 5,0; 6,0)
ADS-B	DO-260B compliant, ADS-B Out

Interrogator Testing (including TCAS)

Test Range	30 to 200 ft
Static Target Mode 1	Responds with 1200
Static Target Mode 2	Responds with 1202
Static Target Mode 3/A	Responds with 1203 (4096 code)
Static Target Mode C	Responds with configurable altitude
Static Target Mode 4 APM-424(V)5	Requires Mode 4 crypto appliqué to operate
Static Target Mode 4 APM-424(V)4	requires KIT or KIV to operate
Static Target Mode 5 APM-424(V)5	Requires Mode 5 crypto appliqué to operate. Replies to Mode 5 Level 1 Formats 0-9 and Level 2 Formats 16-23
Static Target Mode S	Replies to: UF11(all call),UF0 (short TCAS surveillance), UF16 (long TCAS surveillance), UF4 (altitude), UF5 (Identity), UF20 (long altitude), UF21 (long identity)
Dynamic Target Scenarios	Level, Above, Dive, Climb Intruder starts at 15 nmi distance UUT, ends at approximately 0nmi; closing speed fixed at 720 knots; configured altitude is 0-20,000 ft
Target Simulation – Multiple	4, 8, 16, 32, 64, 128 and 256 nmi
Target Simulation – Single	4 nmi, IDENT On/Off, EMERG On/Off, pilotless
Target Simulation – Group	12 targets 2 nmi apart, starting at 4 nmi

Antenna and Direct Connection Port

Antenna Type	End-fire antenna with sum and difference feeds
Interrogation Beamwidth	Approximately ±5 degrees
Polarization	Vertical
Direct Connection Port Impedance	50 Ω
Direct Connection Port SWR	1.3:1 max
Direct Connection Port Connector	TNC All over-the-air and direct connection port testing use identical test criteria

Power Supply

Operating Modes	Unit operates either from external DC input power or internal batteries
External DC Input	11.5 to 28 V DC input, 25 W max.
Surge Protection	MIL-STD-704E figure 9 (50 volts peak for 12.5 ms, then reducing linearly to 29 V over 70 ms)
Reverse Polarity	-30 volts max.
Battery Compatibility	NiCAD re-chargeable battery assy, 7.2 volt DC nominal; compatible with commercial ‘C’ size NiCAD, NiMH or alkaline batteries Replaceable internal batteries, disassembly of unit is not required; reverse polarity protected
Internal Battery Charger	Full re-charge time within 8 hours from fully discharged state Operates from external DC input; automatic charge restriction to 0 to +40°C nominal battery temperature range; safety charge termination at +85°C
Discharge Protection	Test set automatically shuts off to prevent excessive battery discharge

Signal Generator

Generator Frequency	1030 or 1090 ±0.01 MHz
Generator Power (antenna connector)	+4 to -44 dBm, 1 dB resolution, ±1.5 dB accuracy at antenna connector ±2 dB radiated antenna field strength
Generator Power (direct port)	-40 to -88 dBm, 1 dB resolution, ±1.5 dB accuracy at direct port
Pulse Shape and Timing APM-424(V)5	Modes 3/A, C, S comply with RTCA/DO-181D, Modes 1, 2, 4, 5 comply with NATO STANAG 4193 Part V & DOD AIMS 03-1000A
Pulse Shape and Timing APM-424(V)4	Modes 3/A, C, S comply with RTCA/DO-181D, Modes 1, 2, 4 comply with NATO STANAG 4193 Part V & DOD AIMS 03-1000A
ISLS Amplitude	Equal to P1 on difference or sum ports when enabled
Interrogation Rate (transponder test mode)	Modes 1,2,3/A,C,4,5: 235 ±5 Hz; Mode S: 50 ±5 Hz Mode 5 applies to APM-424(V)5 only
Harmonics	2nd and 3rd harmonic >30 dBc
Spurious	-50 dBm max. in standby; 50 dBc or -50 dBm max. in transmit when measured at the antenna connection Applies at greater than 60 MHz from TX center frequency

Measurement Receiver

Frequency Range	1090 or 1030 MHz Within ±5 MHz of nominal for specified accuracy of amplitude and frequency measurements
Amplitude Range	+68 to +20 dBm at direct port, +24 to -24 dBm at antenna port
Input Protection	Direct Input +68 dBm; Antenna Input +30 dBm at antenna connection 1 μs pulse width, 1% max duty cycle
Power	1 dB resolution, ±1.5 dB accuracy at antenna port, ±1.5 dB at direct port, ±2 dB antenna field strength Peak power of pulse obtained using 100 ns averaging period
Frequency	0.01 MHz resolution ±0.10 MHz accuracy with >400 ns pulse width (transponder mode); ±0.05 MHz accuracy with >750 ns pulse width (interrogator mode) Average frequency between 90% points
Pulse Spacing	±25 ns measured between leading edges for pulses with rise times <100 ns
Pulse Width	±25 ns for pulses with rise times of 50 to 100 ns, fall times of 50 to 200 ns
Receiver Bandwidth	>10 MHz at 3 dB points
Oscillator Leakage	-50 dBm max. at antenna connection
Image Rejection	>40 dBc

COMSEC Interface

Appliqué Housing/Interface APM-424(V)5	Interchangeable side mounted housings: 04-900A Option A (KIV-78/KIV-6/QRTK6 NG Adapter); 04-900A Option B (KIV-77/SIT-2010 Adapter)
Circular Connector Interface	Supports KIR-1A/1C, KIT-1A/1C and KIV-6 with appropriate cable or adapter
Power for COMSEC	KIT-1A/KIR-1A - External 115 VAC provided through KIT/KIR-1A interface cable; KIT-1C/KIR-1C: 22 to 29 VDC at 3 W max.; KIV-6: 15 ±0.75 VDC at 200 mA max. Power provided by the test set (except KIT-1A/KIR-1A)
Power for COMSEC (Mode 5) APM-424(V)5	KIV-77: +5 VDC, 2.2 W; KIV-78: 15 ±1.0 VDC at 200 mA max. Power provided by the test set
Timekeeping APM-424(V)5	Internal Real Time Clock, ±3.5 ppm accuracy Internal GPS receiver for UTC synchronization of Real Time Clock

Test Parameters

Reply Code	M1/M2/M3A: 4096 code; MC: Altitude in ft; MS: 4096 code; M5 (M1/M2/M3A/MC): 4096 code M5 applies to APM-424(V)5
Receiver Sensitivity (Transponder)	Displays MTL in dBm
Receiver Sensitivity (Interrogator)	Tests MDL margin 0 to -12 dB
Squitter APM-424(V)5	M5: Level 2 squitter period (ms); MS: DF11 Acquisition (sec)
Angle Reflection	Indicates unacceptable levels of multi-path interference
Umbilical Testing	Connector provided for direct connection to transponder
Mode S Testing	Supports the RF link portion of the installed equipment performance requirements of DO-181D and ED-73A. Decodes and displays ELS and EHS data Additional equipment is required to simulate aircraft pressure altitude for the altitude reporting verification
Mode 5 Testing APM-424(V)5	Indicates correct reply format as defined in NATO STANAG 4193 Part V and AIMS 03-1000A. Decodes, displays Level 1 ID & DATA reply types and Level 2 PIN, M1/M2 & M3/Altitude report types

Accessory Specifications

AC Power Adapter Input	100 to 240 VAC ±10%, 1.0 A AC max., 47 to 63 Hz
AC Power Adapter Output APM-424(V)5	+12 V DC nominal, 5.0 ADC nominal
AC Power Adapter Output APM-424(V)4	+12 V DC nominal, 2.0 ADC nominal
External Battery Charger Charge Time	3 hours max. for 3 AH battery, dependent on battery charge state Automatic shut off when fully charged
RF Direct Connect Cable	12 ft (3.6 m); TNC male right angle, TNC male straight; TNC female to N male adapter included
Battery Stick	High capacity rapid charge NiCad, 7.2 V DC nominal, 3 amp hour at +25°C (77°F) nominal Operating -20° to +55°C recommended; will operate at -40°C with 25% of +25°C capacity
Option A (KIV-78/KIV-6/QRTK6 NG Adapter) Dimensions APM-424(V)5	Length 8.85 in (22.48 cm), Height 4.49 in (11.40 cm), Width 2.93 in (7.44 cm); 2 lb (0.91 kg max.)
Option B (KIV-77/SIT-2010 Adapter) Dimensions APM-424(V)5	Length 7.75 in (19.68 cm), Height 4.2 in (10.67 cm), Width 1.76 in (4.47 cm); 1 lb (0.45 kg max.)
Transit Case	Watertight sealed enclosure with pressure release valve; Length 26.25 in (66.75 cm), Height 16.75 in (42.54 cm), Width 16.00 in (40.64 cm)
Transit Case Weight APM-424(V)5	Empty 16 lbs (7.3 kg); Full 41 lb (18.6 kg)
Transit Case Weight APM-424(V)4	Empty 16 lbs./7.3 kg; Full 38 lbs./17.3 kg
Bench Utility Software	Allows download, viewing, and saving test data from test set. Microsoft Windows 95, 98, 2000, XP, NT 4.x; CD ROM

Physical

Size (Test Set Only)	7.5”H x 11.5”W x 14.1”D (19.05 cm x 29.21 cm x 35.81 cm)
Size (with Transit Case) APM-424(V)5	20.4”H x 31.3”W x 15.5”D (51.82 cm x 79.50 cm x 39.37 cm)
Weight	12.25 lbs. (test set with battery) APM-424(V)4 datasheet: 12.25 lbs./5.6 kg (with battery)
Shipping Weight APM-424(V)5	50 lbs. (22.7kg)

Environmental

Standard APM-424(V)5	MIL-PRF-28800, Class 1
Operational Temperature	-40° to + 55°C (-40° to + 131° F)
Storage Temperature	-55° to + 85°C (-67° to + 185° F)
Relative Humidity	To 100% for at least 6 hours
Splash Proof	Rain at 1.8 inches per hour and the wind velocity is at least 20 miles per hour (mph), for a period of no less than 60 minutes
Altitude	4,600 meters operating, 50,000 ft storage
Shock	Transit: 36 inch drop in transit case; High Impact: 36 inch drop; Functional: 30 G 11 ms half sine
Random Vibration	10 Hz to 2000 Hz/60 mins per axis
EMI/RFI	MIL-STD-461E CE101, CE102, CS101, CS114, CS115, CS116, RE101, RE102, RE103, RS101, RS103 (2 MHz to 18 GHz, 50 V/m)

Ordering

NSN APM-424(V)4	6625-01-600-6784
NSN APM-424(V)5	6625-01-583-2774 APM-424(V)5 w/ KIV-77 adapter
Order Number APM-424(V)4	87866 APM-424(V)4 Interrogator/Transponder Test Set w/ ELS/EHS

Applications

Mode 5 TX/RX pulse measurement
Mode 5 squitter data
Mode 5 data acquisition formats 0-23
TS-4542 shipboard interrogator testing
ADS-B Out testing
KIV-77 and SIT-2010 support
KIV-78 support
Flight line IFF transponder testing
Interrogator and TCAS testing

Options & Accessories

Option	Description
67197	Kit, upgrade TS-4530 or AN/APM-424(V)3 to APM-424(V)4 — Factory upgrade kit for existing units (COMSEC adapters sold separately)
86738	Kit, upgrade TS-4530 or APM-424(V)3 to APM-424(V)5 — Factory upgrade kit for existing units (COMSEC adapters sold separately)
88573	Kit, upgrade APM-424(V)4 to APM-424(V)5 — Factory upgrade kit for existing units (COMSEC adapters sold separately)
88572	Kit, upgrade TS-4530-1 to APM-424(V)5 — Factory upgrade kit for existing units (COMSEC adapters sold separately)
58082	Cable, KIT/KIR-1A (55-1045-16)
67474	Tripod
138331	Tripod, heavy duty
58084	Automotive DC adapter cable (55-1045-18)
86633	Bench utility with field maintenance (CD)
88568	Maintenance manual (CD)
84357	Extended warranty 3 Years w/ scheduled calibration
84358	Extended warranty 5 Years w/ scheduled calibration
Option A	04-900A Option A (KIV-78/KIV-6/QRTK6 NG Adapter) — Crypto appliqué adapter; attaches to the 78 pin D sub female crypto interface adapter
Option B	04-900A Option B (KIV-77/SIT-2010 Adapter) — Crypto appliqué adapter; attaches to the 78 pin D sub female crypto interface adapter