The HP/Agilent 11793A Microwave Converter extends the measurement and signal generation capabilities of laboratory instruments by down-converting microwave signals to intermediate frequencies compatible with measuring receivers such as the HP 8902A. Signals below 1.3 GHz pass directly to the connected instrument, while signals above 1.3 GHz are mixed with an external local oscillator and filtered to produce IF outputs in the 10 MHz to 700 MHz range. This architecture supports applications in radar, satellite communications, and microwave component testing.
Technical Specifications
Frequency Conversion
• Input frequency range: 1.3 GHz to 26.5 GHz (mixer operation)
• Direct signal routing: Below 1.3 GHz
• IF output frequency range: 10 MHz to 700 MHz
• Internal mixer processes signals with external LO injection
Local Oscillator Requirements
• Required LO output power: +8 dBm leveled
• LO frequency range: 2 GHz to 26.5 GHz
• LO amplitude capability: 0 dBm to +13 dBm (depending on frequency band and optional amplifier)
• Optional 18 to 26.5 GHz LO amplifier available (Options 001, 011, 021)
Modulation Measurement Capability (with HP 8902A)
• Amplitude modulation: 150 kHz to 26.5 GHz, rates 20 Hz to 100 kHz, depths to 99%, accuracy ±1% ±1 digit (50 Hz–50 kHz, >5% depth)
• Frequency modulation: 150 kHz to 26.5 GHz, rates 20 Hz to 200 kHz, deviations to 400 kHz, accuracy ±1% +1 digit (50 Hz–100 kHz)
• Phase modulation: 150 kHz to 26.5 GHz, rates 200 Hz to 20 kHz, deviations to 400 radians, accuracy 3% +1 digit
RF Power Measurement
• Maximum range: +30 dBm (1 W) with HP 11792A Sensor Module
– Key Features
• Dual-path signal processing: direct routing for low frequencies, mixing for high frequencies
• Flexible LO input configuration: standard rear-panel location or front-panel options (010, 011)
• Optional internal amplifier for weak LO sources above 18 GHz
• Modulation analysis across full frequency range with integrated filtering and amplification
– Typical Applications
• Radar system characterization and testing
• Satellite communication signal analysis
• Microwave component measurement and validation
• Modulation quality assessment at high frequencies
– Compatibility & Integration
Designed as a front-end converter for the HP 8902A Measuring Receiver and compatible spectrum analysis systems requiring microwave frequency extension.
