The Keysight 8482B (formerly Agilent HP) is a high-power thermocouple power sensor designed for precise RF and microwave power measurements over a frequency range of 100 kHz to 4.2 GHz. Integrating a 30 dB attenuator, it accurately measures average power from 0 dBm to +44 dBm (1 mW to 25 W) with exceptional SWR and linearity, making it a standard choice for high-power transmitter testing and system calibration.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Proprietary 12-pin multi-contact connector (compatible with Keysight 11730 series cables) |
| Display | None (results displayed on connected power meter) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Supplied by host power meter via sensor cable |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 137 mm × 83 mm × 127 mm |
| Weight | 0.8 |
RF Performance Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 kHz to 4.2 GHz |
| Power Measurement Range | 0 to +44 dBm (1 mW to 25 W) |
| Maximum Continuous Input Power | 25 W average |
| Maximum Peak Input Power | 500 W (for pulse width ≤ 5 µs) |
| Nominal Impedance | 50 Ω |
| Maximum SWR (100 kHz to 2 MHz) | 1.10 |
| Maximum SWR (2 MHz to 30 MHz) | 1.18 |
| Maximum SWR (30 MHz to 2 GHz) | 1.10 |
| Maximum SWR (2 GHz to 4.2 GHz) | 1.18 |
Calibration and Accuracy
| Parameter | Value |
|---|---|
| Reference Calibration Factor | 100% (at 50 MHz) |
| Power Linearity (0 to +35 dBm) | ±3% |
| Power Linearity (+35 to +44 dBm) | ±3% |
| Zero Set | ±50 µW |
| Zero Drift | < ±10 µW (within 1 hour at constant temperature) |
| Measurement Noise | < 110 µW |
Physical and Connector Interfaces
| Parameter | Value |
|---|---|
| RF Input Connector Type | Type-N (male) |
| Integrated Attenuator Value | 30 dB |
System Compatibility
| Parameter | Value |
|---|---|
| Compatible Power Meters | Keysight/Agilent EPM (E4418A/B, E4419A/B), EPM-P (E4416A, E4417A), P-Series (N1911A, N1912A), E1416A VXI, 435A/B, 436A, 437A/B, 438A, 70100A |
| Required Sensor Cable Model | Keysight 11730 Series |
Environmental Conditions
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 to +75 °C |
| Operating Humidity Range | 95% R.H. at 40 °C (non-condensing) |
| Operating Altitude Limit | 4,572 m (15,000 ft) |
| Storage Altitude Limit | 15,240 m (50,000 ft) |
Physical Dimensions
| Parameter | Value |
|---|---|
| Overall Width | 137 mm |
| Overall Height | 83 mm |
| Overall Depth | 127 mm |
| Net Weight | 0.8 kg |
| Shipping Weight | 1.3 kg |
Compliance and Quality Standards
| Parameter | Value |
|---|---|
| Recommended Calibration Cycle | 1 year |
Operating Characteristics
| Parameter | Value |
|---|---|
| Sensor Technology | Thermocouple |
| Input Coupling | AC coupled |
Power Limits
| Parameter | Value |
|---|---|
| Maximum Energy per Pulse | 100 W·µs |
Inputs & Outputs
| Parameter | Value |
|---|---|
| RF Connector Gender | Male |
Connectivity
| Parameter | Value |
|---|---|
| Maximum Sensor Cable Length | 61 m (200 ft) |
Accuracy
| Parameter | Value |
|---|---|
| Calibration Factor RSS Uncertainty (100 kHz to 10 MHz) | 2.3% |
| Calibration Factor RSS Uncertainty (10 MHz to 30 MHz) | 2.3% |
| Calibration Factor RSS Uncertainty (30 MHz to 2 GHz) | 2.3% |
| Calibration Factor RSS Uncertainty (2 GHz to 4.2 GHz) | 2.4% |
| Calibration Factor Worst-Case Uncertainty (100 kHz to 10 MHz) | 4.3% |
| Calibration Factor Worst-Case Uncertainty (10 MHz to 30 MHz) | 4.3% |
| Calibration Factor Worst-Case Uncertainty (30 MHz to 2 GHz) | 4.3% |
| Calibration Factor Worst-Case Uncertainty (2 GHz to 4.2 GHz) | 4.6% |
Environmental
| Parameter | Value |
|---|---|
| Vibration and Shock Compliance | Meets MIL-T-28800C, Class 5 |
Technology
Thermocouple
Applications
RF and Microwave Power Measurement