Agilent/Keysight E4418A

The Keysight E4418A is a single-channel average power meter engineered for benchtop and automatic test equipment (ATE) applications. It delivers precise power measurements across frequencies from 9 kHz to 110 GHz, with dynamic range up to 90 dB when paired with HP ECP series sensors. The meter combines a high-resolution backlit LCD display with an intuitive control layout of hardkeys and softkey menus, enabling rapid configuration and measurement acquisition at speeds up to 200 readings per second. Built-in measurement functions include absolute and relative power, difference and ratio calculations, plus automatic calibration and zeroing. Code compatibility with the HP 437B meter protects existing ATE investments and simplifies system migration.

– Technical Specifications

Frequency coverage spans 9 kHz to 110 GHz depending on sensor selection. Power measurement range extends from −70 dBm to +44 dBm (100 pW to 25 W). The meter achieves instrumentation absolute accuracy of ±0.02 dB in logarithmic mode or ±0.5% in linear mode; relative accuracy is ±0.04 dB (logarithmic) or ±1.0% (linear). Display resolution is selectable across 1.0, 0.1, 0.01, and 0.001 dB in logarithmic mode, or 1 to 4 digits in linear mode, with defaults of 0.01 dB logarithmic and 3 digits linear. The internal 1.00 mW reference output is factory-set to ±0.7% and traceable to NIST, with worst-case accuracy of ±1.2% over one year.

– Key Features

• Dynamic range up to 90 dB maximum with HP ECP series sensors; 50 dB maximum with HP 8480 series sensors
• No range-switching delays with 8480 series sensors; single fast-range switch point with E-series sensors
• Split-screen display showing simultaneous digital and analog readouts
• Analog peaking meter for precise level adjustments
• Ten saveable instrument configurations
• Measurement speed 2× faster than HP 437B when using 8480 series sensors

– Compatibility & Integration

Full compatibility with all HP 8480 series and HP ECP series power sensors. Standard GPIB (IEEE-488) interface for remote control and data logging. Optional rear-panel sensor input available via Option 002; Option 003 provides additional rear-panel sensor connectivity.