IFF-45TS MK XIIA/TACAN Bench Test Set for Transponder, Interrogator and TACAN Testing

Remote-controlled RF bench test set for signal generation and parametric measurement of MK XIIA transponders, interrogators and TACAN equipment.

Interfaces Supported: IEEE-488, RS232 and Ethernet (VXI-11)
Software: PC Windows based GUI provided

Datasheet

Overview

The VIAVI IFF-45TS Transponder / Interrogator / TACAN Bench Test Set is an RF signal simulator that supports AIMS Mark XIIA transponders and interrogators. It operates under remote control from a computer or ATE system and provides signal generation and measurement of Mark XIIA system signals in both bench and over-the-air applications.

Replies and interrogations can be configured individually to match testing requirements. ADS-B Out testing monitors ADS-B, TIS-B, ADS-R and Acquisition squitters.

For TACAN work, the IFF-45TS emulates either a TACAN ground transponder or a TACAN airborne interrogator and provides six TACAN test modes.

The product is controlled for export under the International Traffic in Arms Regulations (ITAR); a license from the U.S. Department of State is required before export from the United States.

Key Features

MK XIIA AIMS certified for Level 1 and Level 2
Accommodates DOD AIMS 04-900A Option A (KIV-78) and Option B (KIV-77)
Dual I/O for diversity testing of transponders or SUM/DIFFERENCE on interrogators
Separate connections for direct or over-the-air testing
Software defined radio design allows waveform flexibility and future growth potential
Dual signal generator design allows coordinated signal production for interference and echo testing
Remote interfaces consist of RS-232, Ethernet and GPIB
GUI for access to test features
Used in development and end item testing of transponders and interrogators

Specifications

User Interface

Interfaces Supported	IEEE-488, RS232 and Ethernet (VXI-11)
Software	PC Windows based GUI provided

Modes of Operation

Transponder Testing	1, 2, 3/A, C, S, 4, 5
Interrogator Testing	1, 2, 3/A, C, S, 4, 5
DME/TACAN Testing	G/A, INV G/A, BG/A, BA/A, A/A, INV A/A
Additional Modes	ADS-B Transponder Out, GCIB Decode

Signal Generator

Frequency Range	955 to 1223 MHz, 10 KHz resolution
Output Amplitude, Direct Port	0.0 dBm to -110.0 dBm (into 50 Ω) in 0.1 dB increments
Direct Port Accuracy, 0.0 dBm to -80.0 dBm	±0.5 dB @ 25˚ ± 5˚ C
Direct Port Accuracy, < -80.0 dBm to -100 dBm	± [0.5 dB + 0.05 dB per dB below -80 dBm] @ 25˚ ± 5˚ C; e.g. -85 dBm gives ±0.75 dB, -95 dBm gives ±1.25 dB
Direct Port Accuracy, < -100.0 dBm	± [1.5 dB + 0.35 dB per dB below -100 dBm] @ 25˚ ± 5˚ C
Direct Port Accuracy over full temp, 0.0 dBm to -80.0 dBm	±1.0 dB
Direct Port Accuracy over full temp, < -80.0 dBm to -100 dBm	± [1.0 dB + 0.10 dB per dB below -80 dBm]
Direct Port Accuracy over full temp, < -100.0 dBm	±[3.0 dB + 0.70 dB per dB below -100 dBm]
Output Amplitude, Antenna Port	+30.0 dBm to -60.0 dBm (into 50 Ω) in 0.1 dB increments
Antenna Port Accuracy, Power ≥ -30.0 dBm	±1.0 dB @ 25˚ ± 5˚ C
Antenna Port Accuracy, Power < -30.0 dBm	±[1.0 dB + 0.033 dB per dB below -30 dBm] @ 25˚ ± 5˚ C
Antenna Port Accuracy over full temp, Power ≥ -30.0 dBm	±2.0 dB
Antenna Port Accuracy over full temp, Power < -30.0 dBm	±[2.0 dB + 0.066 dB per dB below -30 dBm]
Pulse Formats, Transponder/Interrogator	1, 2, 3/A, C, S Modes 3/A, C, S comply with RTCA/DO-181C; Modes 1, 2, 4, 5 comply with DOD AIMS 03-1000A
Pulse Formats, Secure Modes	4, 5
Pulse Formats, DME/TACAN	/A, A/A, INVERSE G/A, INVERSE A/A, BEACON G/A, BEACON A/A

Signal Generator Pulse Characteristics

Pulse Position Deviation, XPDR	±1 μs
Pulse Position Deviation, INT Non-Mode 5	±1 μs
Pulse Position Deviation, INT Mode5	±0.25 μs
Pulse Position Accuracy [XPDR/INT]	±10 ns
Pulse Position, TACAN	12 ± 0.1 μs Pulse overlap not allowed
Pulse Position Accuracy [TACAN]	±100 ns
Pulse Width Deviation, Transponder	Nominal ±0.6 μs (fixed in Mode S-SPR) Minimum pulse width is 200 ns; accuracy ±10 ns
Pulse Width Deviation, Interrogator	Nominal ±0.5 μs Minimum pulse width is 200 ns; accuracy ±10 ns
Pulse Width, TACAN	3.5 μs to 9.0 μs Accuracy ±0.1 μs
Pulse Amplitude, XPDR/INT	+5 to -15 dB
Pulse Amplitude, TACAN	±5 to -15 dB
Interference Pulse Position (1 or 2 pulses)	-1 μs to +400 relative to reference Accuracy ±10 ns
Interference Pulse Offset Range, XPDR	-44 μs to 400 μs
Interference Pulse Offset Range, INT	-1 μs to 400 μs
Interference Pulse Spacing Range (multiple pulse interference mode)	-1 μs to +400 relative to 1st pulse Accuracy ±10 ns
Max 2nd Pulse Position	400 μs - 1st pulse position
Range Delay, DME/TACAN	1 to 400.00 nmi in 0.01 nm steps Accuracy 0.02 nm or 0.0003% of simulated range
Range Delay, INT	0 to 400.00 nmi Accuracy ±0.01 nmi
Diversity Timing (either channel)	0 to ±1 μs, ±10 ns accuracy
Channel Signal Assignment, Transponder Test	Top/Bottom
Channel Signal Assignment, Interrogator Test	Sum/Difference
Channel Signal Assignment, TACAN	Top/Bottom

Interrogation Generator

Independent/Unique Interrogations	1-12
Fixed Mode, SIF Mode	1-10000 PRF
Fixed Mode, Mode 5	1-1200 PRF
Fixed Mode, Mode S	1-2500 PRF
Fixed Mode, Mode 4	1-3500 PRF (internal), 1-2500 PRF (external)
Double/Supermode, Spacing Between Interrogations (slaved delay)	0-400 μs
Double/Supermode, Pair Generation Rate	1-400 PRF
Supermode Interrogations	2 interrogations
Burst Mode, Bursts/Trigger	1-1000 or infinite
Burst Mode, Interrogations/Burst	1-2500
Burst Mode, Interrogation Rate (within a burst)	1-400 PRF
Burst Mode, Spacing Between Burst Sequences	0.1-20 sec
Interlaced Mode, Interlace Ratio	1:1 - 1:63
Interlaced Mode, Group Rate	1-400 PRF

Reply Generator

Independent/Unique Replies	1-12
Data and Range	Individually configured
Selectable Modes	1,2,3/A,C,S,4,5
Selectable Efficiency	1-100%

Spectral Purity

Harmonics	Direct: <50 dBc; Antenna: <40 dBc
Spurious (> modulation BW)	<60dBc, 350 - 1800 MHz
Phase Noise	<80 dBc/Hz @ 100 kHz

Signal Receiver Measurements

Frequency Range	1020 to 1155 Unit not printed in the datasheet
Pulse Power, Direct, 25 ±5˚ C	+30 dBm to +66 dBm: +0.5 dB Resolution: 0.01 dB
Pulse Power, Antenna, 25 ±5˚ C	-40 to +30 dBm: +1 dB Resolution: 0.01 dB
Pulse Power, Direct, -10˚ to 55˚ C	+30 dBm to +66 dBm: +1 dB Resolution: 0.01 dB
Pulse Power, Antenna, -10˚ to 55˚ C	-40 to +30 dBm: +2 dB Resolution: 0.01 dB
Pulse to Pulse Spacing, XPDR/INT Non-Mode 5	±0.3 μs Accuracy ±10 ns
Pulse to Pulse Spacing, XPDR/INT Mode 5	±0.0625 μs Accuracy ±10 ns
Pulse to Pulse Spacing, TACAN	±0.5 μs Accuracy ±50 ns
Pulse Width, XPDR/INT	±0.200 μs Accuracy ±10 ns
Pulse Width, TACAN	2.5 to 4.5 μs Accuracy ±50 ns
Reply Delay Accuracy	±20 ns
Reply Delay Jitter Accuracy	±20 ns
Frequency Accuracy	±50 KHz
% Reply Range	0-100% for each interrogation type
% Reply Resolution	0.0125% (for sample size = 8000)
Sample Size	1 - 8000 interrogations

TACAN/DME

Ident Variable	10 sec to 60 sec
Ident Alphanumeric Character	1 to 8 [A to Z]
Bearing Range	0° to 359.9° in 0.1° steps Accuracy ±0.05°
Bearing Rate	0° to 39° sec in 0.01° steps
Velocity Range	0 to 9999 Kts in 1 Kt steps Accuracy ±0.001%
Squitter Range	10 to 8000 Hz Accuracy 10 Hz or 2%, whichever is greater
Squitter Distribution	Compliant with ARINC 568 @ 2700 Hz
Main Reference Burst, Adjustable Burst (all modes)	+1, +2, -1 or -2 Selectable On/Off; accuracy ±100 ns
Main Reference Burst, Channels	X Channel 12 pulse pairs; Y Channel 13 single pulses; A/A (all channels) 10 single pulses
Auxiliary Reference Burst, Adjustable Burst (all modes)	+1, +2, -1, or -2 Accuracy ±100 ns
Auxiliary Reference Burst, Channels	X Channel 6 pulse pairs; Y Channel 13 single pulses
TACAN Modulation Range	0% to 39% in 1 Hz steps (15 Hz and 135 Hz separately adjustable) Accuracy ±1%; distortion <5% of either tone
A/A Interrogation Rate	0 to 3999 Hz in 1 Hz steps
Reply Efficiency	0 to 100% in 1% steps

Crypto Appliqué

KIV-77	AIMS Type B, Mode 4/5
KIV-78	AIMS Type A, Mode 4/5
KIV-6	Mode 4
KIT-1(A/C) / KIR-1(A/C)	cables (external power cable)
Mode 4 Internal Crypto Simulator (standard)	Word A/B, C1 - C16
Mode 5 Internal Crypto Simulator	As defined by the U.S. Navy Mode 5 Program Office Standard with options 1 and 3

Interface Signals

Analog Signal Ports (programmable output)	2 Ports Programmable sources: various
Analog Signal Port Level	±1 V into 50 Ω
Trigger Out (front panel)	TX timing ref, RX detection; 3.3 V logic
Trigger In (front panel)	Interrogation Trigger, Reply Trigger; 3.3 or 5 V logic
Suppression Out Amplitude into 2 KΩ	12 V to 80 V Variable pulse width 0.25 μs - 300 μs
Suppression In	10 V to 80 V, 2.2 KΩ Inhibits response to incoming signal

General

Frequency/Time Reference	2.5 ppm composed of 1 ppm/year aging and 1 ppm accuracy over temp
External Reference Input	2.5 ppm composed of 1 ppm/year aging and 1 ppm accuracy over temp
VSWR	Direct = 1.2:1 over frequency range; Antenna = 2.5:1 over frequency range
Input Power	100-240 VAC, 50-60 Hz, 3 Amp fuse

Environmental

Temperature Range	-10° to 55° C (14° to 131° F)
Warm-up	45 minutes For specified accuracy

Physical

Dimensions (w/o controller)	17.75” W x 4” H x 21” D (45 cm x 10 cm x 53 cm)
Weight	24 lbs (10 kg)

Certifications

Test Set Certifications	UL, CE, DoD AIMS MK XIIA Level 1 and Level 2

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Engineering development and qualification testing for MK XIIA, ADS-B Beacon and TACAN equipment
Manufacturing factory calibration and verification testing
Depot/service Level 1/2 return-to-service testing
DO-260B, AIMS 03-1000B Amendment 1 and DO-181E certification testing
Over-the-air platform testing of MK XIIA equipment including Mode 5, ADS-B beacons and TACAN interrogators
Development and end item testing of transponders and interrogators