The Keysight E9325A is a high-performance peak and average diode power sensor designed for use with EPM-P and P-Series power meters. It covers a frequency range of 50 MHz to 18 GHz and features a 300 kHz video bandwidth, making it ideal for time-gated measurements on TDMA wireless systems including GSM, EDGE, and NADC.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Proprietary sensor cable interface to host power meter |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered by host power meter via sensor cable |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 150 mm x 38 mm x 30 mm |
| Weight | 0.18 kg |
| Shipping Weight | 0.55 kg (1.2 lb) |
Frequency and Power Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 50 MHz to 18 GHz |
| Minimum Operating Frequency | 50 MHz |
| Maximum Operating Frequency | 18 GHz |
| Power Measurement Range (Average Mode) | -65 dBm to +20 dBm |
| Power Measurement Range (Normal Mode) | -50 dBm to +20 dBm |
| Maximum Continuous Power | +23 dBm (200 mW) average |
| Maximum Peak Power | +30 dBm (1 W) peak for < 10 µs |
| Maximum Allowed DC Voltage | 5 V |
RF Impedance and Impedance Matching
| Parameter | Value |
|---|---|
| Nominal Impedance | 50 Ω |
| SWR (50 MHz to 2 GHz) | 1.12 |
| SWR (2 GHz to 10 GHz) | 1.16 |
| SWR (10 GHz to 16 GHz) | 1.23 |
| SWR (16 GHz to 18 GHz) | 1.28 |
| RF Connector Type | Precision Type-N (male) |
Dynamic and Pulse Characteristics
| Parameter | Value |
|---|---|
| Video Bandwidth (High Setting) | 300 kHz |
| Video Bandwidth (Medium Setting) | 100 kHz |
| Video Bandwidth (Low Setting) | 30 kHz |
| Rise/Fall Time (High Bandwidth Setting) | < 0.9 µs |
| Rise/Fall Time (Medium Bandwidth Setting) | < 3.2 µs |
| Rise/Fall Time (Low Bandwidth Setting) | < 10 µs |
| Measurement Speed | Up to 1000 corrected readings per second (via GPIB) |
Measurement Accuracy and Uncertainty
| Parameter | Value |
|---|---|
| Zero Drift (Normal Mode) | 1.5 nW |
| Zero Drift (Average Only Mode) | < ±60 pW |
| Measurement Noise (Normal Mode) | < 6 nW (free run acquisition) |
| Measurement Noise (Average Only Mode) | < 165 pW |
Calibration and Compatibility
| Parameter | Value |
|---|---|
| EEPROM Calibration Memory | Stores calibration factors, linearity, temperature, and bandwidth correction |
| Compatible Power Meters | Keysight EPM-P series (E4416A, E4417A) and P-Series (N1911A, N1912A) |
Environmental Conditions
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +75 °C |
| Operating Humidity | Up to 95% RH at 40 °C (non-condensing) |
Accuracy & Calibration
| Parameter | Value |
|---|---|
| Calibration Factor Uncertainty (50 MHz) | 1.8% (at 25 °C ± 5 °C) |
| Calibration Factor Uncertainty (0.1 GHz to 2 GHz) | 1.8% (at 25 °C ± 5 °C) |
| Calibration Factor Uncertainty (2 GHz to 10 GHz) | 2.4% (at 25 °C ± 5 °C) |
| Calibration Factor Uncertainty (10 GHz to 16 GHz) | 2.4% (at 25 °C ± 5 °C) |
| Calibration Factor Uncertainty (16 GHz to 18 GHz) | 2.6% (at 25 °C ± 5 °C) |
| Linearity (Average Only Mode, -65 to -10 dBm) | ±3.0% (at 25 °C ± 5 °C) |
| Linearity (Average Only Mode, -10 to +20 dBm) | ±4.5% (at 25 °C ± 5 °C) |
| Linearity (Normal Mode, -50 to -10 dBm, Peak) | ±4.0% (at 25 °C ± 5 °C) |
| Linearity (Normal Mode, -10 to +20 dBm, Average) | ±5.0% (at 25 °C ± 5 °C) |
| Linearity (Normal Mode, -10 to +20 dBm, Peak) | ±4.5% (at 25 °C ± 5 °C) |
System Connectivity
| Parameter | Value |
|---|---|
| Compatible Sensor Cables | E9288A (1.5 m), E9288B (3 m), E9288C (10 m) |
Power Specifications
| Parameter | Value |
|---|---|
| Power Measurement Range (Normal Mode, Low Bandwidth) | -50 dBm to +20 dBm |
| Power Measurement Range (Normal Mode, Medium Bandwidth) | -45 dBm to +20 dBm |
| Power Measurement Range (Normal Mode, High Bandwidth) | -40 dBm to +20 dBm |
| Maximum Peak Power Duration | < 1 µs |
Accuracy & Noise
| Parameter | Value |
|---|---|
| Zero Set (Normal Mode, Low Bandwidth) | 5.0 nW |
| Zero Set (Normal Mode, Medium Bandwidth) | 12.5 nW |
| Zero Set (Normal Mode, High Bandwidth) | 25.0 nW |
| Zero Set (Average Only Mode) | 0.5 nW |
Operation
| Parameter | Value |
|---|---|
| Sensor Warm-up Time | 30 minutes |
Environmental
| Parameter | Value |
|---|---|
| Maximum Operating Altitude | 4,600 m (15,000 ft) |
| Maximum Non-Operating Altitude | 15,240 m (50,000 ft) |
| Storage Humidity Range | Up to 90% RH at 65 °C (non-condensing) |
Compliance
| Parameter | Value |
|---|---|
| EMC Compliance | IEC 61326-1 / EN 61326-1, CISPR 11 / EN 55011 Group 1 Class A |
| Safety Standards | IEC 61010-1 / EN 61010-1, CSA C22.2 No. 61010-1 |
Technology
Diode Power Sensor
Applications
RF & Microwave Power Measurement