The Keysight (Agilent/HP) 85046A is a 50 Ω S-parameter test set designed for transmission and reflection measurements of two-port devices. Operating over a frequency range of 300 kHz to 3 GHz, it features precision 7 mm test port connectors, a built-in programmable step attenuator, and dual DC bias ports. It is fully controlled by and powered from compatible network analyzers.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Proprietary interconnect cable (controlled by host network analyzer) |
| Number of Test Ports | 2 |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered by host network analyzer via interconnect cable |
| Operating Temperature | 0 to 55 °C |
Frequency and Impedance
| Parameter | Value |
|---|---|
| Frequency Range | 300 kHz to 3 GHz |
| Nominal Impedance | 50 Ω |
RF Performance Specifications
| Parameter | Value |
|---|---|
| Directivity (0.3 to 1300 MHz) | ≥ 35 dB |
| Directivity (1300 to 3000 MHz) | ≥ 30 dB |
| Source Match (0.3 to 1300 MHz) | ≥ 20 dB |
| Source Match (1300 to 3000 MHz) | ≥ 16 dB |
| Load Match (0.3 to 1300 MHz) | ≥ 18 dB |
| Load Match (1300 to 3000 MHz) | ≥ 14 dB |
Port and Connector Configurations
| Parameter | Value |
|---|---|
| Test Port Connector Type | Precision 7 mm (APC-7) |
| RF Input Connector Type | 50 Ω Type-N (female) |
| DC Bias Ports | Two BNC (female) connectors on rear panel |
Signal Handling and Power Ratings
| Parameter | Value |
|---|---|
| Maximum Operating Input Power | +20 dBm |
| Maximum Damage RF Input Level | +30 dBm (1 W) |
| Maximum DC Bias Voltage | 30 V |
| Maximum DC Bias Current | 500 mA |
| Internal Attenuator Range | 0 to 70 dB (in 10 dB steps) |
System Compatibility and Control
| Parameter | Value |
|---|---|
| Compatible Network Analyzers | HP/Agilent 8753A/B/C, 8753D/E/ES Option 011, 4395, 4396, and selected 8702 configurations |
Connectivity
| Parameter | Value |
|---|---|
| DC Bias Input Connector | BNC female |
Power
| Parameter | Value |
|---|---|
| Power Source | Derived from the host network analyzer via the control cable |
Interfaces
| Parameter | Value |
|---|---|
| RF Input Connector Location | Front panel |
| Test Port Connector Location | Front panel |
| DC Bias Ports Location | Rear panel |
Technology
RF and Microwave S-Parameter Test Set
Applications
Two-port S-parameter measurements