The Keysight Agilent EPM-441A (commonly designated as E4418A) is a high-performance, single-channel RF and microwave power meter designed for benchtop and automated test applications. It supports a wide array of power sensors, including the 8480 series and E-series, delivering fast, accurate, and repeatable average power measurements.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (IEEE-488.2), RS-232 / RS-422, Recorder Output (BNC) |
| Display | LCD with LED backlight, multi-information split screen |
| Save/Recall States | 10 instrument configurations |
| Warm-up Time | 30 minutes |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 85 to 264 VAC, 47 to 440 Hz, automatic selection, < 70 VA maximum (25 W typical) |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 212.6 mm × 88.5 mm × 348.3 mm |
| Weight | 4.0 kg |
Measurement Capabilities and Performance
| Parameter | Value |
|---|---|
| Number of Channels | 1 |
| Frequency Range | 100 kHz to 110 GHz (sensor dependent) |
| Power Range | -70 dBm to +44 dBm (sensor dependent) |
| Measurement Speed (GPIB) | Up to 200 readings/second |
| Single-Sensor Dynamic Range | 90 dB max (E-series sensors) |
Measurement Accuracy and Calibration
| Parameter | Value |
|---|---|
| Instrumentation Accuracy | ±0.5% |
| Internal Power Reference Frequency | 50 MHz |
| Internal Power Reference Output | 1.00 mW (0.00 dBm) |
| Internal Power Reference Connector | Type-N (f), 50 Ω |
| Power Reference Accuracy (25 °C ±5 °C) | ±0.9% |
| Power Reference Accuracy (0 to 55 °C) | ±1.2% |
Sensor Compatibility and Connection
| Parameter | Value |
|---|---|
| Compatible Sensor Families | Agilent/HP 8480 series, E-series (E4412A, E4413A, E9300 average sensors) |
User Interface and Display
| Parameter | Value |
|---|---|
| Display Resolution | Selectable from 1 to 0.001 dB (logarithmic) or 1 to 4 digits (linear) |
| Display Units | dBm, dB, W, %, dB[relative] |
System Connectivity and Interfaces
| Parameter | Value |
|---|---|
| Recorder Output Voltage | 0 to 1 V (into 1 MΩ, 1 kΩ output impedance) |
Software and Remote Programming
| Parameter | Value |
|---|---|
| Command Set Support | SCPI (Standard Commands for Programmable Instruments) |
Physical and Power Specifications
| Parameter | Value |
|---|---|
| Battery Option Availability | Option 001 (Internal Ni-MH rechargeable battery pack, approx. 3 hours operation) |
| Weight with Battery Option 001 | 5.0 kg |
Environmental and Compliance
| Parameter | Value |
|---|---|
| Storage Temperature Range | -20 to +70 °C |
| Relative Humidity Limit | Up to 95% at 40 °C (non-condensing) |
| Maximum Operating Altitude | 4600 m (15000 ft) |
| Safety Standards Compliance | Conforms to EN61010-1, CSA C22.2 No. 1010.1 |
| Electromagnetic Compatibility (EMC) | Conforms to EN61326-1, EN55011 Class A |
Measurement Features
| Parameter | Value |
|---|---|
| Offset Range | ±100 dB in 0.001 dB increments |
| Power Sensor Cable Lengths | Up to 122 m (400 ft) depending on sensor type |
Power Reference
| Parameter | Value |
|---|---|
| Power Reference Impedance | 50 Ω nominal |
| Power Reference Output SWR | 1.05 maximum |
Recorder Output
| Parameter | Value |
|---|---|
| Recorder Output Impedance | 1 kΩ nominal |
| Recorder Output Connector | BNC (rear panel) |
Measurement Characteristics
| Parameter | Value |
|---|---|
| Calibration Factor Range | 1.0% to 150.0% |
| Calibration Factor Resolution | 0.1% |
Power & Battery
| Parameter | Value |
|---|---|
| Battery Operating Time (Option 001) | Up to 3 hours (backlight off), up to 2.5 hours (backlight on) |
| Battery Charge Time | Approx. 2 hours (power off), <3 hours (power on) |
Interfaces
| Parameter | Value |
|---|---|
| Serial Interface Protocol | RS-232 / RS-422 |
| Serial Interface Connector | RJ-11 |
| GPIB Address Range | 0 to 30 |
Technology
RF & Microwave Power Measurement
Applications
Average RF power measurement for design, manufacturing, and service of wireless and radar communications