The Keysight (Agilent) 8482H is a high-power thermocouple RF power sensor designed for accurate average power measurements from 100 kHz to 4.2 GHz. Featuring an integrated 30 dB attenuator, it expands the measurement range up to +35 dBm (3 Watts) while maintaining low SWR to minimize mismatch uncertainty.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Proprietary 12-pin connector (requires Keysight 11730A series sensor cable) |
| Display | None (uses host power meter display) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered by compatible host power meter via cable |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 38 mm × 30 mm × 174 mm |
| Weight | 0.5 kg |
| Shipping Weight | 1.1 kg (2.4 lb) |
Measurement Ranges & Power Specifications
| Parameter | Value |
|---|---|
| Frequency Range Minimum | 100 kHz |
| Frequency Range Maximum | 4.2 GHz |
| Power Measurement Range Minimum | -10 dBm |
| Power Measurement Range Maximum | +35 dBm |
| Power Measurement Range (Watts) | 100 µW to 3 W |
| Maximum Continuous Input Power | 3.5 W (+35.4 dBm) |
| Maximum Peak Input Power | 100 W |
Sensor Technology & Architecture
| Parameter | Value |
|---|---|
| Sensor Detection Type | Thermocouple |
| Measurement Modes Supported | Average Power |
| Dynamic Range | 45 dB |
| Attenuator Value | 30 dB (integrated) |
RF Port Characteristics
| Parameter | Value |
|---|---|
| Input Impedance | 50 Ω |
| RF Connector Type | Type-N |
| Connector Sex | Male |
| Maximum SWR (100 kHz to 300 kHz) | 1.60 |
| Maximum SWR (300 kHz to 1.24 GHz) | 1.20 |
| Maximum SWR (1.24 GHz to 4.2 GHz) | 1.30 |
Accuracy, Calibration & Noise
| Parameter | Value |
|---|---|
| Calibration Traceability | US National Institute of Standards and Technology (NIST) |
| Calibration Factor Storage Type | Printed table on sensor body for manual entry |
| Zero Set | ±50 µW |
| Zero Drift | ±10 µW (1 hour, constant temperature) |
| Measurement Noise | ±110 µW |
Meter Compatibility & System Integration
| Parameter | Value |
|---|---|
| Compatible Power Meter Models | EPM Series (E4418A/B, E4419A/B), EPM-P Series (E4416A, E4417A), P-Series (N1911A, N1912A), E1416A VXI, 70100A, 435A/B, 436A, 437A/B, 438A |
| Recommended Calibration Cycle | 1 Year |
Environmental Parameters
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 to +75 °C |
| Operating Humidity Range | 95% RH at 40 °C (non-condensing) |
| Maximum Operating Altitude | 4,600 meters (15,000 feet) |
Regulatory Compliance
| Parameter | Value |
|---|---|
| EMC Standards Compliance | IEC 61326-1 / EN 55011 Class A |
| Safety Standards Compliance | IEC 61010-1 |
Performance
| Parameter | Value |
|---|---|
| Power Linearity (-10 to +20 dBm) | Negligible |
| Power Linearity (+20 to +30 dBm) | ±3% |
| Power Linearity (+30 to +35 dBm) | ±10% |
Calibration
| Parameter | Value |
|---|---|
| Reference Calibration Point | 50 MHz, 1.00 mW (0 dBm) |
Connectivity
| Parameter | Value |
|---|---|
| Compatible Cable Series | Keysight 11730 series |
| Power Meter Connector | 12-pin circular male |
Design
| Parameter | Value |
|---|---|
| Attenuator Integration | Permanently attached and individually calibrated 20 dB attenuator |
Technology
Thermocouple
Applications
RF & Microwave Power Measurement