The Agilent/Keysight 437B is a single-channel, programmable average power meter engineered for ATE systems and benchtop measurement applications. It delivers measurement speeds twice as fast as the HP 436A, with a compact half-rack width and 3-inch height that minimizes cabinet footprint. The instrument uses advanced plastics construction for lightweight operation without sacrificing metal-equivalent shielding effectiveness, and uniquely meets MIL-STD-461C EMI specifications.
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 in logarithmic mode
• Display Units: Absolute (Watts, dBm) and relative (percent, dB)
• Averaging Filter: Digital averaging up to 512 points
• Dimensions: 3 inches height × half-rack width (212.6 mm) × unspecified depth
• Weight: 2.6 kg (5.9 lbs) net
– Key Features
• Internal 50 MHz, 1.0 mW power reference for automatic calibration and zeroing
• Ten preloaded sensor calibration factor tables across frequency
• Duty cycle entry for peak power representation from average power measurement
• Selectable offset entry in dB
• Ten store/recall registers for configuration memory
• Backlit LCD display
• Full programming capability via HP-IB interface
• Optional analog meter output (H36) and parallel rear panel input options
– Typical Applications
• Automated test equipment (ATE) integration
• Benchtop RF and microwave power measurement
• Environments requiring MIL-STD-461C EMI compliance
– Compatibility & Integration
The 437B operates exclusively with the Agilent/Keysight 8480 series power sensors. It communicates via standard HP-IB interface for system integration. Agilent E-series power sensors are not compatible with this instrument.
