The Keysight Technologies (Agilent) E9304A is an E-series average power sensor designed for highly accurate and repeatable power measurements across a wide dynamic range. Covering a frequency range from 9 kHz to 6 GHz (or up to 18 GHz with Special Option H18), this diode-attenuator-diode topology sensor is ideal for very low frequency (VLF) applications, EMC/EMI testing, and general average power measurements of all modulation formats.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Proprietary system interface connector to compatible power meter |
| Display | None (uses host power meter display) |
| Calibration Cycle | 1 year (recommended) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered by compatible power meter |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 38 mm x 30 mm x 135 mm |
| Weight | 0.18 kg |
Measurement Performance
| Parameter | Value |
|---|---|
| Frequency Range (Standard) | 9 kHz to 6 GHz |
| Frequency Range (with Option H18) | 9 kHz to 18 GHz |
| Power Measurement Range | -60 to +20 dBm |
| Dynamic Range | 80 dB |
| Maximum Average Power Damage Level | +25 dBm |
| Maximum Peak Power Damage Level | +33 dBm (< 10 microseconds duration) |
| Measurement Speed | Up to 200 readings per second |
| Low Power Path Range | -60 to -10 dBm |
| High Power Path Range | -10 to +20 dBm |
| SWR (9 kHz to 2 GHz) | 1.15 |
| SWR (2 GHz to 6 GHz) | 1.25 |
| Modulation Support | Average power of all modulation formats (bandwidth independent) |
| Sensor Topology | Patented diode-attenuator-diode |
Calibration and Accuracy
| Parameter | Value |
|---|---|
| EEPROM Storage | Stored calibration factors, linearity, and temperature compensation data |
Physical and Mechanical
| Parameter | Value |
|---|---|
| RF Input Connector Type | Type-N (m) |
System Compatibility
| Parameter | Value |
|---|---|
| Compatible Power Meter Models | EPM (E4418, E4419), EPM-P (E4416A, E4417A), and P-series (N1911A, N1912A) |
Ordering and Configuration Options
| Parameter | Value |
|---|---|
| Special Options | Option H18 (Extends frequency range to 18 GHz) |
Accuracy & Performance
| Parameter | Value |
|---|---|
| Power Linearity (25 °C ± 10 °C, -60 to -10 dBm) | ±1.5% |
| Power Linearity (25 °C ± 10 °C, -10 to 0 dBm) | ±1.5% |
| Power Linearity (25 °C ± 10 °C, 0 to +20 dBm) | ±1.5% |
| Power Linearity (0 °C to 55 °C, -60 to -10 dBm) | ±2.5% |
| Power Linearity (0 °C to 55 °C, -10 to 0 dBm) | ±2.5% |
| Power Linearity (0 °C to 55 °C, 0 to +20 dBm) | ±2.5% |
| Zero Set (Low Power Path) | ±1.5 nW |
| Zero Set (High Power Path) | ±150 nW |
| Zero Drift (Low Power Path) | < ±150 pW |
| Zero Drift (High Power Path) | < ±15 nW |
Calibration Uncertainty
| Parameter | Value |
|---|---|
| Calibration Factor Uncertainty (9 to 100 kHz) | ±1.6% (25 °C ± 10 °C) |
| Calibration Factor Uncertainty (100 kHz to 2 GHz) | ±1.5% (25 °C ± 10 °C) |
| Calibration Factor Uncertainty (2 to 6 GHz) | ±1.7% (25 °C ± 10 °C) |
Environmental & Compliance
| Parameter | Value |
|---|---|
| Storage Temperature Range | -55 °C to +75 °C |
| Operating Altitude | Up to 4600 m (15000 ft) |
| Non-Operating Altitude | Up to 15240 m (50000 ft) |
| Operating Humidity | Up to 95% RH at 40 °C (non-condensing) |
| Storage Humidity | Up to 90% RH at 65 °C (non-condensing) |
Electrical Specifications
| Parameter | Value |
|---|---|
| Nominal Impedance | 50 Ω |
Performance
| Parameter | Value |
|---|---|
| Measurement Noise (Low Power Path) | < 1.1 nW |
| Measurement Noise (High Power Path) | < 110 µW |
Connectivity
| Parameter | Value |
|---|---|
| Compatible Sensor Cables | Keysight E9288A, E9288B, E9288C |
Compliance & Safety
| Parameter | Value |
|---|---|
| EMC Compliance | IEC 61326-1 / EN 61326-1, CISPR 11 / EN 55011 Group 1 Class A |
| Safety Compliance | IEC 61010-1 / EN 61010-1 |
Technology
Diode-attenuator-diode power sensor
Applications
Average RF/microwave power measurement, EMC/EMI immunity testing, VLF measurements