API Technologies / Weinschel 9682-1 Programmable Attenuator

The API Technologies/Weinschel 9682-1 is a programmable attenuator and microprocessor-controlled ground station simulator engineered for precise signal control in automated test systems, communication equipment, and radar applications. Operating as an MLS (Microwave Landing System) angle receiver simulator, it delivers remote-controlled signal adjustment capabilities essential for complex test automation and equipment validation.

## Technical Specifications

**Product Identity**
• Manufacturer: API Technologies / Weinschel
• Model: 9682-1
• Associated Platform: Aeroflex/IFR MLS-800
• Classification: Programmable Attenuator / Microprocessor Controlled Ground Station Simulator

**Operational Standards**
• Supports ICAO 1985 operational menu
• Compliant with EUROCAE ED-53A and ED-36A standards

## Key Features

**Signal Simulation Capabilities**
• Main path signal simulation: Approach (AZ), High Rate Azimuth (HiAZ), Elevation (EL), Back Azimuth (BAZ), and Flare (FL)
• Multi-path simulation with interference pulse generation
• Selectable fade rate modulation at 0.05 Hz, 1 Hz, and 1000 Hz
• Full MLS channel support across operational range

**Beam Parameter Control**
• Angular position adjustment
• Beam amplitude control referenced to preamble
• Norm and half-width pulse configuration
• Selectable beam width: 0.5, 1, 2, 3, 4, and 5 degrees

**Data Word Simulation**
• All Basic Data Words and Auxiliary Data Words
• Parity selection capability
• Preamble Parity, Symmetry, and Percent Update control
• PFE, CMN, and Multi-Path Function designations

**Control & Monitoring**
• Microprocessor-based remote control for automated adjustments
• External sync capability for monitoring integration

## Typical Applications

• MLS ground station validation and receiver testing
• Automated radar system simulation
• Communication equipment performance characterization
• Precision signal control in integrated test environments

## Compatibility & Integration

The 9682-1 integrates with the Aeroflex/IFR MLS-800 platform, providing the programmable attenuation and simulation functions required for comprehensive MLS angle receiver testing. Its microprocessor control interface enables direct integration into automated test systems and command-driven measurement setups.