The Keysight U2001B is a high-power USB average power sensor operating over a frequency range of 10 MHz to 6 GHz. Featuring a wide dynamic range from -30 dBm to +44 dBm, it integrates a built-in attenuator to handle high-power signals directly without needing external components. The sensor is ideal for manufacturing, field maintenance, and R&D testing of RF and microwave systems.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | USB 2.0 (via specialized 5-pin or 8-pin to USB-A cable), External Trigger Input/Output (via optional trigger split cable) |
| Display | None (uses host PC or compatible Keysight instrument screen) |
| Warm-up Time | 30 minutes |
| Sensor Technology | Diode power sensor with integrated attenuator |
Physical
| Parameter | Value |
|---|---|
| Power Supply | USB Bus Powered, 5.0 VDC nominal (4.5 V to 5.5 V), < 200 mA typical during measurement |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 46.0 mm × 46.0 mm × 194.0 mm |
| Weight | 0.76 |
Measurement Performance Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz to 6 GHz |
| Power Measurement Range | -30 dBm to +44 dBm (1 µW to 25 W) |
| Standing Wave Ratio (SWR) 10 MHz to 2 GHz | ≤ 1.12 |
| Standing Wave Ratio (SWR) 2 GHz to 6 GHz | ≤ 1.22 |
| Power Linearity (-30 to +44 dBm) | ±3.0% (at 25 °C ± 10 °C) |
| Measurement Speed (Normal Mode) | 110 readings/s |
| Measurement Speed (Double Buffered/Fast Mode) | 1000 readings/s |
Damage and Input Tolerances
| Parameter | Value |
|---|---|
| Maximum Continuous Power (Average) | +45 dBm (31.6 W) |
| Maximum Peak Power | +47 dBm (50 W) for < 10 µs |
| Maximum DC Input Voltage | 20 VDC |
Connectivity and Interfaces
| Parameter | Value |
|---|---|
| RF Input Connector Type | Type-N (male) |
| RF Input Impedance | 50 Ω |
| Command Language | SCPI (Standard Commands for Programmable Instruments) |
| Trigger Input Voltage Levels (TTL) | Logic High: > 2.0 V, Logic Low: < 0.8 V |
| Trigger Output Voltage Levels (TTL) | Logic High: > 2.4 V, Logic Low: < 0.4 V |
Calibration and Correction Features
| Parameter | Value |
|---|---|
| Internal Calibration Support | Supported (Internal zeroing and calibration wizard) |
| Calibration Factor Table Storage | Stored in EEPROM |
| Recommended Calibration Cycle | 1 Year |
Software and System Integration
| Parameter | Value |
|---|---|
| Compatible Measurement Software | Keysight BenchVue (BV0007B Power Meter App), N1918A Power Analysis Manager |
| Driver Support | IVI-C, IVI-COM, LabVIEW |
Environmental Specifications
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 to +70 °C |
| Operating Humidity Range | Up to 95% RH at 40 °C (non-condensing) |
| Storage Humidity Range | Up to 90% RH at 65 °C (non-condensing) |
| Operating Altitude Limit | 4600 m (15000 ft) |
| Storage Altitude Limit | 15240 m (50000 ft) |
| Vibration and Shock Compliance | MIL-PRF-28800F Class 3 |
Regulatory and Compliance
| Parameter | Value |
|---|---|
| Electromagnetic Compatibility (EMC) | IEC 61326-1, EN 61326-1, AS/NZS CISPR 11, ICES/NMB-001, KC |
| Safety Standards Compliance | IEC 61010-1, EN 61010-1, CAN/CSA-C22.2 No. 61010-1 |
Performance
| Parameter | Value |
|---|---|
| Zero Set | 1.25 µW |
| Zero Drift | 0.35 µW |
| Measurement Noise | 2.5 µW |
| Aperture Time Range | 100 µs to 1.4 s |
| Aperture Time Resolution | 100 µs |
Accuracy
| Parameter | Value |
|---|---|
| Calibration Uncertainty (10 MHz to 30 MHz) | 3.5% |
| Calibration Uncertainty (30 MHz to 500 MHz) | 4.0% |
| Calibration Uncertainty (500 MHz to 1.2 GHz) | 4.1% |
| Calibration Uncertainty (1.2 GHz to 6 GHz) | 4.3% |
| Linearity Temperature Coefficient (0 to 15 °C and 35 to 55 °C) | ±0.15% / °C |
Triggering
| Parameter | Value |
|---|---|
| External Trigger Delay Range | -0.15 s to +8 s |
| External Trigger Delay Resolution | 1 µs |
| External Trigger Holdoff Range | 0 to 400 ms |
| External Trigger Holdoff Resolution | 1 µs |
| External Trigger Latency | 11 µs ± 2 µs |
| External Trigger Jitter | < 1 µs |
| External Trigger Input Impedance | > 10 kΩ |
| External Trigger Output Impedance | 50 Ω (nominal) |
| Trigger Connector | 10-pin multi-port connector (on sensor) to BNC (via trigger cable) |
Power
| Parameter | Value |
|---|---|
| USB Current Draw | < 275 mA |
Internal Trigger
| Parameter | Value |
|---|---|
| Internal Trigger Threshold Range | +10 to +44 dBm |
| Internal Trigger Threshold Resolution | 0.1 dB |
| Internal Trigger Threshold Accuracy | ±1.0 dB |
| Internal Trigger Hysteresis | 1 dB (typical) |
| Internal Trigger Delay Range | 0 to 1.0 s |
| Internal Trigger Delay Resolution | 1 µs |
| Internal Trigger Latency | 11 µs ± 1 µs |
| Internal Trigger Jitter | ±1 µs |
RF Specifications
| Parameter | Value |
|---|---|
| Integrated Attenuator Value | 24 dB |
Technology
Diode average power sensor
Applications
RF and microwave power measurements, high-power amplifier and transmitter testing