The Agilent/Keysight 437A is a single-channel, programmable average power meter designed for RF and microwave measurements from 100 kHz to 110 GHz. It accepts the HP 8480 family of thermocouple and diode power sensors, delivering measurements across a dynamic range of 50 dB in 10 dB steps with selectable resolution to 0.001 dB. The instrument measures twice as fast as the HP 436A and fits a half-rack wide footprint, making it ideal for both automated test equipment systems and benchtop operations.
Technical Specifications
• Measurement Type: Average Power
• Power Range: −70 dBm (100 pW) to +44 dBm (25 W), sensor-dependent
• Frequency Range: 100 kHz to 110 GHz, sensor-dependent
• Dynamic Range: 50 dB in 10 dB steps
• Resolution: Selectable to 0.001 dB
• Display Units: Absolute (Watts, dBm) and Relative (percent, dB)
• Dimensions: 88 mm H × 212 mm W × 273 mm D (half-rack width)
• Weight: 2.6 kg net; 4.5 kg shipping
• Power Consumption: 8 W maximum (10 VA max)
• Line Voltage: Selectable 100/120 Vac or 220/240 Vac, ±5% to −10%, 48–66 Hz (360–440 Hz option available)
• Construction: Advanced plastics with metal shielding; meets MIL-STD-461C EMI specifications
– Key Features
• HP-IB (IEEE-488) interface for remote control and automation
• Automatic calibration and zeroing routines
• Ten pre-loaded sensor calibration factor tables versus frequency
• Frequency entry mode eliminating manual calibration factor input
• Offset entry in dB
• Duty cycle entry for peak power representation
• Ten store/recall registers for measurement setups
• Analog meter display
– Typical Applications
• Automated test equipment (ATE) systems
• Benchtop RF and microwave power measurement
• Wide dynamic range power characterization
– Compatibility & Integration
The 437A operates exclusively with HP 8480 family thermocouple and diode power sensors, enabling flexible measurement configurations across the 100 kHz to 110 GHz spectrum.
