The Keysight (formerly Agilent) N1913A is a high-performance single-channel average power meter in the EPM Series. It offers a frequency range of 9 kHz to 110 GHz and a wide dynamic range of -70 to +44 dBm, depending on the connected sensor. Designed as a direct drop-in replacement for the E4418B, it provides backward code compatibility with 436A and 437B models while significantly improving measurement speed (up to 400 readings/sec with E-Series sensors). Although a single-channel meter natively, it can be expanded to three channels by connecting up to two U2000 Series USB power sensors via optional USB hosts. It features a high-resolution color LCD and standard GPIB, USB, and LAN (LXI-C) connectivity.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB, LAN (LXI-C), USB |
| Display | High-resolution color LCD |
| Warm-up Time | 30 minutes |
Physical
| Parameter | Value |
|---|---|
| Operating Temperature | 0 to 55 |
| Dimensions (W×H×D) | 212.6 × 88.5 × 348.3 |
| Weight | 3.6 kg (without battery) |
General Information
| Parameter | Value |
|---|---|
| Device Type | Average Power Meter |
| Form Factor | Half-rack width, 2U high |
| Number of Channels | 1 standard (expandable to 3 with optional USB hosts) |
Measurement Specifications
| Parameter | Value |
|---|---|
| Supported Frequency Range | 9 kHz to 110 GHz (sensor dependent) |
| Supported Power Range | -70 to +44 dBm (sensor dependent) |
| Display Units (Absolute) | Watts, dBm |
| Display Units (Relative) | Percent, dB |
| Display Resolution | Selectable 1.0, 0.1, 0.01, 0.001 dB (log mode); 1 to 4 digits (linear mode) |
Performance and Accuracy
| Parameter | Value |
|---|---|
| Instrumentation Absolute Accuracy | ±0.02 dB (logarithmic) / ±0.5% (linear) |
| Measurement Speed | Up to 400 readings/sec (with E-Series sensors) |
Power Reference (1 mW)
| Parameter | Value |
|---|---|
| Reference Frequency | 50 MHz |
| Reference Power Output | 1.00 mW (0 dBm) |
| Reference Connector Type | Type-N (female) |
Sensor Compatibility
| Parameter | Value |
|---|---|
| Legacy Sensor Support | Keysight 8480 and E-Series (E4410/E9300) power sensors |
| USB Sensor Support | Keysight U2000 Series (via optional USB hosts) |
| Maximum Number of Connected Sensors | 3 (1 primary sensor + 2 USB sensors via option) |
Display and User Interface
| Parameter | Value |
|---|---|
| Display Type | High-resolution color LCD with numeric keypad |
Interfaces and Rear Panel
| Parameter | Value |
|---|---|
| LXI Compliance | LXI Class C |
| Analog Recorder Output Range | 0 to 1 V |
Power and Battery
| Parameter | Value |
|---|---|
| Battery Type | Rechargeable Lithium-ion (optional) |
Environmental and Operating Conditions
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 °C to +70 °C |
Regulatory and Compliance
| Parameter | Value |
|---|---|
| Code Compatibility | Keysight E4418B, 436A, 437B |
Power
| Parameter | Value |
|---|---|
| Line Frequency | 47 to 63 Hz (90 to 264 VAC) / 400 Hz (90 to 132 VAC) |
Compliance
| Parameter | Value |
|---|---|
| EMC Compliance | IEC 61326-1 / EN 61326-1 / CISPR 11 |
| Safety Compliance | IEC 61010-1 / EN 61010-1 |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Trigger Connectors | BNC (female) |
| Trigger Level | TTL compatible |
| Recorder Output Connector | BNC (female) |
| Analog Recorder Output Impedance | 1 kΩ (typical) |
Performance
| Parameter | Value |
|---|---|
| Compatible Sensor Families | Keysight 8480, N8480, E-Series, and U2000/U2020/U2050/U2060 Series USB |
Connectivity
| Parameter | Value |
|---|---|
| Video Output | VGA (Rear panel) |
Technology
RF/Microwave Power Measurement
Applications
Average power measurements, automated test equipment (ATE), field service, calibration and repair, frequency/power sweeps.