Keysight (Agilent) 8478A

| Attribute | Value |
|---|---|
| Frequency Range | 100 kHz to 18 GHz |
| Power Range | -30 dBm to +35 dBm |
| Connector Type | Type-N (Male) |
| Impedance | 50 Ohm |
| SWR (Maximum) | 1.18 at 2 GHz, 1.35 at 18 GHz |
| Calibration Factor Uncertainty | ±1.2% (RSS) |
| Sensor Type | Thermistor Power Sensor |
| Operating Temperature Range | 0°C to 55°C |
| Compatible Power Meters | Keysight 432A, 435A, 436A, 437B, 438A |
| Maximum Average Power | 30 mW (15 dBm) continuous |
| Model | 8478A |
|---|
The Keysight (Agilent) 8478A Thermistor Mount features four precision-matched thermistors enabling power measurement from 10 MHz to either 10 GHz or 18 GHz. Its innovative series-parallel configuration offers 200 Ω for DC and 50 Ω RF impedance, optimizing accuracy and matching.
Ideal for RF power measurements, this sensor design ensures stability and precise performance across a wide frequency range, with RF ground potential maintained at the bridge.
Testwall can supply the used Keysight (Agilent) 8478A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 8478A.





