The Keysight (Agilent HP) 85044A is a 50-ohm transmission/reflection test set designed to measure the reflection and transmission characteristics of 50-ohm devices. Operating over a frequency range of 300 kHz to 3 GHz, it features a precision 7 mm test port and Type-N female connectors for all other interfaces. It is designed specifically for compatibility with the Agilent 8753A, 8753B, and 8753C vector network analyzers, as well as the 8753D Option 011.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | RF Input (Type-N female), Test Port (Precision 7 mm), Transmission Port (Type-N female) |
Physical
| Parameter | Value |
|---|---|
| Power Supply | None (passive device) |
| Operating Temperature | 0 to +55 °C |
| Dimensions (W×H×D) | 425 mm x 132 mm x 505 mm |
| Weight | 7.3 |
RF Performance
| Parameter | Value |
|---|---|
| Frequency Range | 300 kHz to 3 GHz |
| Impedance | 50 ohms |
| Directivity (300 kHz to 1.3 GHz) | ≥ 40 dB |
| Directivity (1.3 GHz to 3.0 GHz) | ≥ 35 dB |
RF Connections
| Parameter | Value |
|---|---|
| Test Port Connector | Precision 7 mm |
System Compatibility
| Parameter | Value |
|---|---|
| Compatible Analyzers | Agilent 8753A, 8753B, 8753C, 8753D Option 011 only |
Functional Capabilities
| Parameter | Value |
|---|---|
| Measurement Capabilities | Simultaneous measurement of reflection and transmission characteristics (device must be physically reversed for reverse direction) |
Electrical Performance
| Parameter | Value |
|---|---|
| Equivalent Source Match (300 kHz to 1.3 GHz) | ≥ 30 dB |
| Equivalent Source Match (1.3 GHz to 3.0 GHz) | ≥ 25 dB |
| Equivalent Load Match (300 kHz to 1.3 GHz) | ≥ 40 dB |
| Equivalent Load Match (1.3 GHz to 3.0 GHz) | ≥ 35 dB |
Connectors
| Parameter | Value |
|---|---|
| RF Input Connector | 50 Ω Type-N female |
Performance
| Parameter | Value |
|---|---|
| Transmission Tracking (300 kHz to 1.3 GHz) | ±1.5 dB magnitude, ±10° phase |
| Transmission Tracking (1.3 GHz to 3.0 GHz) | ±2.5 dB magnitude, ±15° phase |
| Reflection Tracking (300 kHz to 1.3 GHz) | ±1.5 dB magnitude, ±10° phase |
| Reflection Tracking (1.3 GHz to 3.0 GHz) | ±2.5 dB magnitude, ±15° phase |
| Maximum Operating Input Level | +20 dBm |
DC Bias
| Parameter | Value |
|---|---|
| Maximum DC Bias Voltage | 30 VDC |
| Maximum DC Bias Current | 200 mA |
| DC Bias Input Connector | BNC female |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Reference (R) Output Connector | Type-N female |
| Test (A) Output Connector | Type-N female |
Technology
Transmission/Reflection Test Set
Applications
S-parameter measurement (reflection and transmission) of 50-ohm RF devices