VIAVI ATC-5000NG NextGen Transponder/DME Test Set and ADS-B Target Generator

Software-defined RF test set for Mode A, C and S transponders, DME and ADS-B, with an ADS-B target generator and two independent transmitters and receivers.

Range: 952 MHz to 1223 MHz
Resolution: 100 kHz
Accuracy: 2.5 ppm
Phase noise: <-80 dBc/Hz @ 100 kHz

Datasheet

Overview

The VIAVI ATC-5000NG is an RF signal generator and receiver for testing Mode A, C and S transponders. It also serves as a DME test set and an ADS-B target generator, with ADS-B squitter encoding and decoding and data parsing in engineering units.

The test set is built on software-defined radio technology. Its software-driven design allows field updates that add features or capability, or that follow changes in industry requirements. The ATC-5000NG replaces the commercial functionality of the SDX-2000, ATC-1400A and S-1403DL.

It is intended for engineering development, design validation, manufacturing and return-to-service testing. It can run most MOPS tests for DO-181E, DO-260, DO-260A, DO-260B, DO-260C, DO-282B and DO-282C. Options add UAT 978 MHz transmit/receive, multi-receiver testing and canned DO-260B MOPS tests.

The instrument has two independent transmitters and receivers for full diversity testing. It is operated from a 10.4 inch touch screen and can be remote-controlled over GPIB or Ethernet.

Key Features

Software-driven design allows field updates for new features, capability or modifications due to industry changes
ADS-B target generator
ADS-B squitter encode/decode
DO-260, DO-260A, DO-260B and DO-260C (option) data parsing
DO-260B canned tests available (option)
Generates ATCRBS/Mode S interrogations
Multi-receiver test capability (option)
UAT TX/RX capability (optional)
DO-260C new squitter messages available (option)
DO-282C new message content available (option)
Pulse and frequency measurement
10.4 inch touch screen LCD display for operator control of all test set capabilities
Remote controlled via GPIB or Ethernet
Two independent transmitters and receivers
TX/RX data logging capability
Full diversity testing capability
Data parsing in engineering units

Specifications

Transmitter Frequency

Range	952 MHz to 1223 MHz
Resolution	100 kHz
Accuracy	2.5 ppm
Phase noise	<-80 dBc/Hz @ 100 kHz

Transmitter Power

Range (Transponder)	+5 to -110 dBm
Resolution (Transponder)	0.1 dB
Accuracy (Transponder)	±1 dB (+5 to -100 dBm); ±3 dB (< -100 dBm) @ 1030 MHz
Range (UAT) Option 2	+5 to -100 dBm Top antenna port only
Accuracy (UAT) Option 2	±1 dB @ 978 MHz Resolution 0.1 dB
Range (Multi-Receiver) Option 3	-20 to -90 dBm (Low Power Mode); -5 to -65 dBm (High Power Mode); -40 to -110 dBm (Very Low Power Mode) Resolution 1 dB
Accuracy (Multi-Receiver) Option 3	±1 dB (+5 to -100 dBm); ±3 dB (< -100 dBm) @978, 1030 and 1090 MHz
Range (DO-260B)	-20 to -90 dBm (Low Power Mode); -5 to -65 dBm (High Power Mode); -40 to -110 dBm (Very Low Power Mode) Resolution 1 dB; accuracy ±1 dB (+5 to -100 dBm), ±3 dB (< -100 dBm) @ 1090 MHz
Range (DME)	+5 to -110 dBm Top port only; resolution 0.1 dB; accuracy ±1 dB (-100 to +5 dBm), ±3 dB (< -100 dBm); 952 to 1223 MHz

Spectral Purity

Harmonics	<-50 dBc
Spurious	<-55 dBc, 350 to 1800 MHz
Residual FM	250 Hz Peak
DME pulse spectrum at ± 800 kHz offset	<-52 dBc

Transmitter Channels and Diversity

No. of channels	2 (DME Option); 4 (XPDR/UAT); 6 (ADS-B Option)
Diversity power	±20 dB Resolution 0.1 dB; accuracy ±1 dB
Diversity timing	±1 µs Resolution 25 ns; accuracy ±10 ns

Transmitter Modulation and Pulse Position

Pulse on/off ratio	>80 dB
Mode A interrogation P1-P3 default	8.0 µs Accuracy ±10 ns; high speed rise/fall time mode
Mode C interrogation P1-P3 default	21.0 µs Accuracy ±10 ns
ATCRBS interrogation variation	±1.95 µs Resolution 25 ns; accuracy ±10 ns (P1-P3), ±15 ns (P1-P2 and P3-P4)
Mode S interrogation P1-P2 default	2.0 µs Accuracy ±10 ns
Mode S interrogation P6 to SPR default	1.25 µs Accuracy ±15 ns
Interference interrogation signal #1 (relative to P1 pulse)	-17.5 to 400 µs Resolution 25 ns; accuracy ±20 ns
DME P1 to P2 default	12 or 30 µs Accuracy ±50 ns
DME P1 to P2 variation	DME X +7.9 µs to -2.5 µs; DME Y +7.9 µs to -7.9 µs Resolution 25 ns; accuracy ±50 ns

Transmitter Pulse Width, Rise/Fall and Amplitude

ATCRBS interrogation P1/P2/P3 default	0.8 µs Accuracy ±10 ns
Mode S interrogation P6 short / long default	16.25 µs / 30.25 µs Accuracy ±10 ns
Interference pulse width	0.2 to 32.0 µs Resolution 25 ns; accuracy ±25 ns
DME P1/P2 width variation	3.5 to 9.0 µs Default 3.5 µs; resolution 25 ns; accuracy ±250 ns
Pulse rise/fall time (transponder)	<50 / <50 ns Accuracy <50 ns
Pulse rise/fall time (DME)	2.0 / 2.5 µs Accuracy ±25 µs
ATCRBS interrogation amplitude variation (all pulses)	+9 to -19 dB Resolution 0.1 dB; accuracy ±0.5 dB
DME echo amplitude	+6 to -15 dB Resolution 0.1 dB; accuracy ±0.5 dB

Interrogation Table, Blocks and PRF

Interrogation table unique messages	1 to 1000
Interrogations/burst	1 to 10K
Burst spacing	0 to 20 s 0 s for single burst transmissions; resolution 0.1 s; accuracy ±100 ms
Block transmissions unique messages	1 to 2000 messages
No. of blocks	1 to 50,000 or infinite
Block period	10 ms to 90 seconds Resolution 1 ms; accuracy ±1 ms
PRF (single interrogation)	1 to 10,000 Hz Resolution 1 Hz; accuracy 0.1% of setting
Interlace ratio	1:1 to 1:1000
Suppressor pulse amplitude	>25 V (fixed)

DME Simulation

Ident frequency	1350 Hz Accuracy ±0.02%
Dot variation	50 to 250 ms Default 120 ms; resolution 10 ms; accuracy ±1 ms
Dash variation	150 to 750 ms Default 360 ms; resolution 10 ms; accuracy ±1 ms
Range	-1 to 400 nmi Resolution 0.01 nmi; accuracy ±0.02 nmi
Velocity	0 to 10000 knots Resolution 1 knot; accuracy ±0.001% of setting
Squitter	0 to 8000 Hz Resolution 1 Hz; accuracy 10 Hz or 2%, whichever is greater
Reply efficiency	0 to 100 % Resolution 1%; accuracy ±0.5%

Receiver

VSWR	<1.4 (952 to 1223 MHz)
Max input power	+60 dBm
Operating range (XPDR)	+17 to +60 dBm (1090 ±3 MHz)
Operating range (UAT) Option 2	+30 to +57 dBm (978 ±3 MHz) Bottom antenna port only
Operating range (DME)	+17 to +60 dBm (1020 to 1155 ±3 MHz)
Decoded messages	ATCRBS Interrogation and Replies; Mode S Interrogations and Replies; UAT Ground and Airborne Messages [UAT Option]; DME Interrogations
No. of channels	2, Top/Bottom

Receiver Measurement

Power	+17 to +60 dBm XPDR 1090 ±3 MHz, DME 1025 to 1150 MHz; resolution 0.1 dB; accuracy ±0.5 dB
Frequency (XPDR)	1090 MHz +3 MHz Resolution 1 kHz; accuracy ±50 kHz
Frequency (DME)	RX Channels (1025 to 1150 MHz ±1 MHz) Resolution 1 kHz; accuracy ±20 kHz
Pulse spacing accuracy	±10 ns (XPDR); ±50 ns (DME) Resolution 1 ns
Pulse width accuracy	±15 ns (XPDR); ±50 ns (DME) Resolution 1 ns
Pulse rise/fall time accuracy	±15 ns (XPDR); ±100 ns (DME) Resolution 1 ns
Reply delay (XPDR: ATCRBS & Mode S) accuracy	±50 ns Resolution 25 ns
Reply jitter accuracy	±20 ns Resolution 1 ns
Percent reply	0 to 100% Sample size equal to PRF or 200, whichever is greater; resolution 0.1 %; accuracy ±1 %
Interrogation rate (DME)	0 to 10 kHz Resolution 1 Hz; accuracy ±1 Hz

Mode S Squitter Rate

DF11	0.01 s to 4.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm
DF17 airborne position	0.01 s to 2.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm
DF17 surface position	0.01 s to 15.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm
DF17 A/C identification	0.01 s to 25.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm
DF17 airborne velocity	0.01 s to 2.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm
DF17 event driven	0.01 s to 25.0 s Resolution 1 ms; accuracy ±1 ms ±2.5 ppm

Scope Trigger Output

Width (XPDR, DME)	1.0 µs Scope 1 and Scope 2; accuracy ±0.5 µs
XPDR interrogation position	-1.0 to +600 µs relative to rising edge of P1 (default -1.0 µs) Resolution 25 ns; accuracy ±0.5 µs typical

Environmental

Full specified performance temperature	23°C, ±5°C (73.4°F, ±41°F) Requires 45 minute warm-up period to meet specified performance
Operating temperature	0 to +40°C (32° to 104°F)
Storage temperature	0 to +71°C (32° to 159.8°F)
Relative humidity	0 to 95% noncondensing
Degree of protection	IPX-0

AC Input Power

Voltage range	100 to 240 VAC, 50 to 60 Hz
Power consumption	100 W nominal

Physical

Dimensions	10.5 in (H) x 19 in (W) x 24 in (D) (26.7 cm x 48.3 cm x 60.9 cm)
Weight	41 lbs (18.6 kg) Test set only
Display	10.4 inch touch screen LCD

Interfaces

Remote interface	Ethernet, GPIB
Inputs/outputs	Suppression bus (front/back); 2 scope BNC outputs (front/back); LAN (front/back); 2 USB Type A (front) for HID/flash drives

Certifications

Test set certifications	MIL-PRF-28800F (Class 3 Device), CE, UL/EN 61010-1, EN 61326-1

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

Applications

Engineering development
Certification
Manufacturing
Service and return-to-service testing
MOPS testing for DO-181E, DO-260, DO-260A, DO-260B, DO-260C, DO-282B and DO-282C
Mode S/ADS-B Out transponders
ADS-B In receivers
UAT transceivers
1090MHz DF18 emitters (surface vehicles)
ADS-B In ground station receivers
ADS-R and TIS-B ground station transmitters
DMEs

Options & Accessories

Option	Description
Option 2	UAT 978 MHz — UAT TX/RX capability
Option 3	Multi-Receiver — Multi-receiver test capability
Option 6	DO-260B MOPS Test — DO-260B canned tests