Keysight (Agilent) 438A
| Attribute | Value |
|---|---|
| Channels | 2 |
| Compatible Sensors | 8480 series |
| Frequency Range | 100 kHz to 110 GHz |
| Power Range | -70 to +44 dBm |
| Measurement Types | A, B, A-B, B-A, A/B, B/A |
| Interfaces | GPIB |
Compatible power sensors
| Model | Frequency Range | Power Range | Sensor Type |
| 8481A | 10 MHz to 18 GHz | -30 to +20 dBm | thermocouple |
| 8481B | 10 MHz to 18 GHz | 0 to +44 dBm | thermocouple, with 25 W attenuator |
| 8481D | 10 MHz to 18 GHz | -70 to -20 dBm | diode, average |
| 8481H | 10 MHz to 18 GHz | -10 to +35 dBm | thermocouple, with 3 W attenuator |
| 8482A | 100 kHz to 4.2 GHz | -30 to +20 dBm | thermocouple |
| 8482B | 100 kHz to 4.2 GHz | 0 to +44 dBm | thermocouple, with 25 W attenuator |
| 8482H | 100 kHz to 4.2 GHz | -10 to +35 dBm | thermocouple, with 3 W attenuator |
| 8483A | 100 kHz to 2 GHz | -30 to +20 dBm | diode, average |
| 8485A | 50 MHz to 26.5 GHz (33 GHz with Opt. 033) | -30 to +20 dBm | thermocouple |
| 8485D | 50 MHz to 26.5 GHz (33 GHz with Opt. 033) | -70 to -20 dBm | diode, average |
| 8487A | 50 MHz to 50 GHz | -30 to +20 dBm | thermocouple |
| 8487D | 50 MHz to 50 GHz | -70 to -20 dBm | diode, average |
| R8486A | 26.5 to 40 GHz | -30 to +20 dBm | thermocouple, waveguide |
| R8486D | 26.5 to 40 GHz | -70 to -20 dBm | diode, average |
| Q8486A | 33 to 50 GHz | -30 to +20 dBm | thermocouple, waveguide |
| Q8486D | 33 to 50 GHz | -70 to -20 dBm | diode, average |
| V8486A | 50 to 75 GHz | -30 to +20 dBm (Opt. H02: -60 to +20 dBm) | diode, average, waveguide |
| W8486A | 75 to 110 GHz | -30 to +20 dBm | diode, average, waveguide |
| 8484A | 10 MHz to 18 GHz | -70 to -20 dBm | diode, average |
The Keysight (Agilent) 438A is a dual-channel power meter tailored for ATE systems, offering precise power ratio and difference measurements from two sensors. Compatible with 8480 series sensors, it operates across 100 kHz to 26.5 GHz with a -70 to +44 dBm range. GPIB is standard, and Option 700 enables MATE system CIIL control.
This meter supports unattended monitoring with programmable limits and dynamic measurement modes including A/B, B/A, A-B, and B-A, ideal for gain compression analysis.
Testwall can supply the used Keysight (Agilent) 438A, 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) 438A.
