The Keysight E4418A is a single-channel EPM series power meter engineered for precise RF and microwave power measurements across benchtop and automated test equipment applications. This programmable instrument delivers fast measurement speeds and wide dynamic range, supporting demanding calibration and production testing tasks. The E4418A accepts a broad range of compatible power sensors, making it adaptable to diverse measurement scenarios from 100 kHz to 110 GHz.
Technical Specifications
Measurement Performance
• Frequency Range: 100 kHz to 110 GHz (sensor dependent)
• Power Range: −70 dBm to +44 dBm (100 pW to 25 W) (sensor dependent)
• Measurement Speed: Up to 200 readings per second over GPIB with E-series sensors
• Speed improvement: Up to 2× faster with HP 8480 series sensors versus HP 437B
• Range-switching delay: None with HP 8480 series; single fast-range switch point with E-series sensors
Accuracy
• Instrumentation Absolute Accuracy: ±0.02 dB (logarithmic), ±0.5% (linear mode)
• Instrumentation Relative Accuracy: ±0.04 dB (logarithmic), ±1.0% (linear mode)
• Power Reference Output: 1.00 mW (0.0 dBm), factory set to ±0.7% and traceable to NIST
• Reference Accuracy: ±1.2% worst case (±0.9% RSS) over one year
Display and Control
• High-resolution LCD with LED backlighting and contrast adjustment
• Display Units: Absolute (Watts or dBm) and Relative (Percent or dB)
• Resolution: Selectable to 0.001 dB (logarithmic); 1 to 4 digits (linear mode)
• Default Resolution: 0.01 dB logarithmic, 3 digits linear
• Instrument State Memory: Save and recall up to 10 configurations
Interfaces and Integration
• GPIB: IEEE 488.2 compliant remote control
• RS-232 and RS-422 serial interfaces (RS-422 supplied standard)
– Key Features
• Single Sensor Dynamic Range: 90 dB maximum (HP ECP series), 50 dB maximum (HP 8480 series)
• Full compatibility with HP 8480 series and HP ECP series power sensors
• No range-switching delays with 8480 series sensors for continuous measurement flow
• Programmable operation via standard industry interfaces
– Typical Applications
• RF and microwave power measurement and verification
• Production testing and calibration workflows
• Automated test environments requiring high-speed acquisition
• Wide frequency span characterization from 100 kHz to 110 GHz
– Compatibility & Integration
The E4418A integrates with all HP 8480 series and HP ECP series power sensors. E9320A family sensors are not supported. Remote operation is enabled through GPIB, RS-232, and RS-422 interfaces, allowing seamless integration into rack-mounted and automated test systems.
