IFR T-1401 TACAN Accessory Test Set

The Cobham/Aeroflex/IFR T-1401 TACAN Accessory Test Set is a specialized instrument designed for the comprehensive testing and calibration of TACAN (Tactical Air Navigation) systems. It interfaces with the ATC-1400A Transponder/DME Test Set to simulate TACAN transmitter signals, enabling the verification and servicing of airborne TACAN equipment across various modes, including Air-to-Air, Ground-to-Air, and Inverse operations. The T-1401 is engineered to provide accurate simulation of TACAN bearing and Distance Measuring Equipment (DME) signals, crucial for ensuring the optimal performance and reliability of aviation navigation systems. This test set is suitable for aviation maintenance, calibration facilities, and integration into automated test equipment (ATE) systems.

### Technical Specifications

**Modes of Operation:**
* Ground-to-Air (G/A) X Mode
* Ground-to-Air (G/A) Y Mode
* Air-to-Air (A/A) X Mode
* Air-to-Air (A/A) Y Mode
* Inverse G/A X Mode
* Inverse G/A Y Mode
* Inverse A/A X Mode
* Inverse A/A Y Mode

**TACAN Signal Simulation Parameters:**
* **Bearing:**
* Range: 0 to 359.9 degrees
* Accuracy: ±0.05 degrees (G/A Mode, 15 Hz)
* Accuracy: ±0.10 degrees (G/A Mode, 135 Hz)
* Accuracy: ±0.10 degrees (A/A Mode, 15 Hz)
* Accuracy: ±0.30 degrees (INV Mode, 15 Hz)
* **Bearing Rate:**
* Range: 0 to 139 degrees per second
* Accuracy: ±0.1 degree per second
* **Modulation:**
* Variable 15 Hz modulation
* Variable 135 Hz modulation
* Phase shift selection between 15 Hz and 135 Hz
* 135 Hz separately adjustable
* **Pulse Spacing:**
* X Mode pulse spacing (operates without ATC-1400A)
* Identification and Equalizer pulse pairs enabled in G/A Mode
* Nominal pulse spacings automatically selected per mode
* Specific pulse pair configurations:
* 12 pulse pairs nominal in G/A X mode
* 13 single pulses nominal in G/A Y mode
* 10 single pulses nominal in A/A X or Y mode
* Adjustable pulse spacing for -1, -2, +1, or +2 variations
* Spacing Position: 24.0 μs in G/A X mode, 15.0 μs in G/A Y mode
* Adjustable Spacing: ±3.9 µs in 0.1 µs increments
* Accuracy: ±0.1 µs
* **DME Simulation:**
* Full range of DME simulation
* X Channel DME replies: 30.0 μs (±0.1 µs)
* Y Channel DME replies: 30.0 μs (±0.1 µs)
* **Interrogation Rate (Air-to-Air):**
* Programmable air-to-air interrogation rate
* Average Rate: 0 to 3999 per second, selectable in 1 Hz steps
* Accuracy: ±1 Hz steps
* Distribution: Period is random in discrete steps
* **Identification (Ident) Signal:**
* Ident Position: 0 to 3999 per second
* Identifies air-to-air replies from UUT (Unit Under Test)

**Interface and Control:**
* Designed to interface with the ATC-1400A Transponder/DME Test Set
* IEEE-488 GPIB interface via ATC-1400A for remote operation
* Front panel controls for real-time parameter adjustment and display
* Mode of operation determined by front panel switch settings
* Operated and controlled via the ATC-1400A, typically with the T-1401 mounted on top
* Receives mode information from ATC-1400A via the Aeroflex Bus
* Mode information includes: Identification On/Off, Equalizer On/Off, X/Y Mode, P1 and P2 pulse spacing deviation

**Compatibility:**
* Interfaces directly with the Aeroflex/IFR ATC-1400A Transponder/DME Test Set

### Electrical Characteristics

* **AC Input:**
* Operates from 110 VAC or 220 VAC supplies (options available)
* Designed to operate from an installation category 1 or 2 supply
* Line power is switched through the T-1401 for synchronized power-up with ATC-1400A
* **Power Considerations:**
* Contains circuits and components with extremely high voltage potentials, requiring strict adherence to safety precautions

### Interfaces

* **Data Interface:** IEEE-488 GPIB
* **Unit Interconnect:**
* Via Aeroflex and AUX buses using two 25-way interconnect cables
* 2 SMB-to-SMB coaxial cables
* Can be hard-mounted to the ATC-1400A using supplied hardware

### Physical Characteristics

* **Dimensions:**
* Width: 425 mm (16.8 in)
* Depth: 467 mm (18.4 in)
* Height: 89 mm (3.5 in)
* Overall depth without handles: 16 inches (40.64 cm)
* Overall height: 3 1/4 inches (8.25 cm)
* **Weight:**
* 8.1 kg (18 lbs)
* 17.5 pounds (7.95 kg)
* **Construction:**
* Can be operated as a desk-top unit or installed in a rack
* Internal components include PC Board Assemblies (Analog, Computer, TACAN, Power Supply, Line Supply, Switch and Display)

### Compliance and Safety

* Complies with EN 61010-1:1993 for class 1 portable equipment
* Designed for use in a pollution degree 2 environment
* NATO Codified

### Documentation

* Operation/Maintenance Manuals and Datasheets available

Why Choose Aumictech for the Cobham / Aeroflex / IFR T-1401 TACAN Accessory Test Set?
At Aumictech, we specialize in supplying high-end avionics test equipment. Whether you need precise TACAN signal simulation, comprehensive diagnostic capabilities for navigation systems, or a reliable solution for aviation maintenance and calibration, our team ensures the Cobham / Aeroflex / IFR T-1401 TACAN Accessory Test Set delivers maximum performance for your application.