TRD_Redacted.pdf

2 March 2023

MEMORANDUM FOR: AFTC/PZIOA

FROM:

SUBJECT: Technical Requirements Document for Radio Frequency Generator

1. The has a requirement to purchase (1) Radio Frequency Generator for testing Identification, Friend or Foe (IFF) systems in high-density signal environments and must conform to the following specifications:

High-Density Signal Environment

- Supports test scenarios with up to 50 independent IFF platforms

Up to 25 in-beam Mode 5 replies Up to 8 simultaneous garbled signals

Independent Signal Control

- Provides all Mark XIIA modes, including 1, 2, 3/A, C, S, 4, and 5; ADSB and M5L2

- In-chassis interface for KIV-77 and SIT 2010 cryptographic equipment Dynamic RF Environment

- Simulation engine enables dynamic platforms and realistic RF environments accounting for path loss, antenna patterns, and delay.

Compact, Portable Design IFF System Assurance

- Ensures IFF systems are working correctly; send IFF signals to the SUT and capture SUT emanations

- Facilitates seamless Mode 5 and Mode S system integration

INTERROGATION GENERATION

Modes Supported 1, 2, 3/A, C, 4, S, and 5 Frequency 1030 MHz Amplitude -90 to +6 dBm PGRI 10 to 2.5 ms

INTERROGATION RECEPTION

Modes Supported 1, 2, 3/A, C, 4, S, and 5 Frequency 1030 MHz Amplitude +15 to +65 dBm

SCENARIO FEATURES

Up to 50 moving IFF platforms 6 degrees of freedom (latitude, longitude, altitude, heading, pitch, roll) Transmit/receive antenna patterns Realistic RF environment accounting for path loss and pointing angles Elementary surveillance (ELS) and enhanced surveillance (EHS) (optional) DIS (platform motion) interface (optional) TRANSPONDER GENERATION and Reception Modes Supported 1, 2, 3/A, C, 4, S, and 5 Frequency 1090 MHz Amplitude -90 to +6 dBm

Generates 50+ independent, realistic MarkXIIA Interrogations for testing MarkXIIA Transponders or Platforms containing MarkXIIA Transponders.

Generates 25 independent, realistic MarkXIIA Transponders for testing MarkXIIA Interrogators or Platforms containing MarkXIIA Interrogators.

Have two combined Input/output ports and four monitor ports.

Provides Sum and Difference channels to support mono-pulse tracking interrogator test.

Overlapping Pulse Groups

Up to 32 pulses that overlap in time will accurately garble at RF, producing mathematically correct constructive and destructive interference, without clipping.

Up to 32 interrogator or 25 transponder emitters can simultaneously generate interrogations or replies, respectively, all with independent parameters. Pulse groups can overlap in time at RF accurately as though they were generated from different sources.

Independent Interrogation Power Levels

Up to 50 emitters with independent power settings.

Up to 50 emitters with independent interrogation rates, with optional random start times to each emitter's signal pattern, plus optional jitter within each pattern.

Freedom to control timing of all interrogations to create arbitrary patterns of mixed interrogation modes and parameters. Requires multiple emitters on a single platform to generate complex interleaved interrogation patterns.

Replies

User can define sectors relative to the nose of the System Under Test to optionally suppress replies from certain angles.

Up to 25 emitters can be configured to generate coherent mode S ELS and EHS replies with real time data.

All emitters generating mode 5 replies independently pick a random RRD value per reply. Option to fix RRD per emitter.

Up to 25 emitters with independent settings for ERP, optional fixed power, and real-time power adjustments for platform geometry, Sum and Difference, SUT antenna pointing angle, and antenna patterns, resulting in up to 25 independent and accurately modeled power levels.

Annual Software Subscription option Re-align the purchased IFF Test Set and update the system with all features developed in the previous year.

2. Point of Contact:

A. Include Standard warranty

B. Include current user manual

F. FOB Destination Eglin AFB, FL 32542

G. Delivery: 120 days after Receipt of Order (ARO)