The Keysight 11793A is a microwave converter that extends the measurement capability of the 8902A Measuring Receiver into the microwave spectrum. It downconverts high-frequency signals to intermediate frequencies compatible with the 8902A’s input stage. Signals below 1.3 GHz bypass the converter and route directly to the receiver. For input signals from 1.3 GHz to 26.5 GHz, an internal mixer combines the incoming RF with an external local oscillator to produce an IF output in the 10 MHz to 700 MHz range.
Technical Specifications
Frequency Range
• Input signal: 1.3 GHz to 26.5 GHz
• Intermediate frequency (IF) output: 10 MHz to 700 MHz
• Below 1.3 GHz: Direct routing to 8902A input
Local Oscillator Requirements
• Required output power: +8 dBm leveled
• LO amplitude range (2 GHz to 18 GHz): +8 dBm to +13 dBm
• LO amplitude range (18 GHz to 26.5 GHz): +7 dBm to +13 dBm or 0 dBm to +5 dBm depending on amplifier configuration
Power Input
• Voltage: 115 VAC or 230 VAC (+10%, −20%)
• Frequency: 48 to 66 Hz
• Maximum consumption: 20 VA
Connectors
• RF Input/IF Output: Type-N male
• LO Input: Standard rear-panel position (relocatable via options)
– Key Features
• Optional 18 to 26.5 GHz LO amplifier (Option 001) for enhanced LO power delivery
• Flexible LO input positioning—front-panel right side (Option 010) or rear panel (Option 020)
• Integrated RF path switching and LO amplifier control via rear-panel interface
• Low power consumption at 20 VA maximum
• Compact form factor: 4 × 17 × 22 inches, 17 lbs
– Physical & Configuration Options
• C16: Low-profile rack mount with handle kit
• 909: Handles with rackmount flange kit
• H16: Front-panel on/off switch and power indicator light
• Combined options available (011 and 021) bundling LO amplifier with connector relocation
– Compatibility & Integration
Designed as a direct companion to the Keysight 8902A Measuring Receiver. Enables full-band microwave measurements from 1.3 GHz to 26.5 GHz by leveraging the 8902A’s native capabilities below 1.3 GHz and the converter’s downconversion above that threshold.
















