The Keysight (formerly Agilent / HP) 8712ET is a high-performance RF transmission/reflection network analyzer designed for fast, accurate, and cost-effective testing of RF components. Operating over a frequency range of 300 kHz to 1.3 GHz, it features a built-in T/R test set, a synthesized source, dual measurement channels, and both narrowband and broadband receivers. With vector error correction and power/frequency sweep capabilities, it is widely utilized for characterization of filters, amplifiers, antennas, cables, and mixers.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB, LAN (RJ-45), RS-232 Serial, Parallel (Centronics), VGA Video Out, External Trigger Input (BNC), 10 MHz Reference Input (BNC) |
| Display | 9-inch color CRT |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 to 264 VAC (auto-ranging), 47 to 63 Hz |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 425 mm × 178 mm × 512 mm |
| Weight | 20.5 kg |
Stimulus (Source)
| Parameter | Value |
|---|---|
| Frequency Range | 300 kHz to 1.3 GHz |
| Frequency Resolution | 1 Hz |
| Frequency Accuracy | ±5 ppm |
| Power Range (50 Ω Standard) | -5 to +16 dBm |
| Power Range (50 Ω with Option 1E1) | -60 to +16 dBm |
| Power Range (75 Ω Standard) | -5 to +13 dBm |
| Power Range (75 Ω with Option 1E1) | -60 to +13 dBm |
| Power Resolution | 0.01 dB |
| Power Level Accuracy | ±1.0 dB |
| Harmonics | <-30 dBc (at +10 dBm) |
Receiver
| Parameter | Value |
|---|---|
| Narrowband Frequency Range | 300 kHz to 1.3 GHz |
| Broadband Frequency Range | 10 MHz to 1.3 GHz |
| System Dynamic Range (Narrowband) | >100 dB |
| System Dynamic Range (Broadband) | >66 dB |
| Narrowband Average Noise Floor | -102 dBm |
| Broadband Average Noise Floor | -50 dBm |
| Input Damage Level | +20 dBm (RF), ±30 VDC |
| Number of Receivers | 2 |
| Maximum Input Level (Broadband) | +16 dBm |
| Narrowband IF Bandwidths | 250 Hz, 3.75 kHz, 24 kHz |
Measurement Performance
| Parameter | Value |
|---|---|
| System Directivity (typical) | 40 dB |
Sweep & Display Functions
| Parameter | Value |
|---|---|
| Number of Channels | 2 independent channels |
| Sweep Types | Linear frequency, Log frequency, List frequency, Power sweep |
| Number of Measurement Points | 3, 11, 26, 51, 101, 201, 401, 801, 1601 |
| Marker Functions | 8 markers per channel, marker search, tracking, delta markers |
| Limit Lines | Up to 18 segments per channel (for pass/fail testing) |
Calibration & Error Correction
| Parameter | Value |
|---|---|
| Built-in Calibration Types | Transmission/Reflection (T/R) calibration, Response (reflection/transmission) calibration |
| Error Correction | Scalar-error correction |
Interfaces & Storage
| Parameter | Value |
|---|---|
| Test Port Impedance | 50 Ω (standard) or 75 Ω (Option 1EC) |
| Test Port Connector | Type-N female |
| Internal Disk Drive | 3.5-inch floppy disk drive (FDD) |
| Disk Formats | MS-DOS, LIF |
| Save/Recall States | Instrument states, calibration data, trace data, and IBASIC programs |
| Programming Language | Instrument BASIC (IBASIC), SCPI |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 °C to +75 °C |
| Operating Humidity | 5% to 95% relative humidity (non-condensing) |
| Operating Altitude | Up to 4,500 meters (15,000 feet) |
| Non-Operating Altitude | Up to 15,240 meters (50,000 feet) |
Rear Panel Connectivity
| Parameter | Value |
|---|---|
| GPIB Interface | IEEE 488.2 compatible, 24-pin D-shell |
| Parallel Port | 25-pin D-shell, Centronics compatible for printers |
| External Video Output | VGA compatible, 15-pin D-sub, 640 x 480 |
| External Reference Input Frequency | 10 MHz ± 100 Hz |
| External Reference Input Level | -2 dBm to +10 dBm (typical) |
| Auxiliary Input Voltage Range | ±10 V (100 kΩ input impedance) |
| Limit Test Output Level | TTL compatible (Pass: high, Fail: low, open-collector) |
| External Trigger Input | BNC female, TTL compatible |
| Keyboard Connector | 5-pin DIN |
Options
| Parameter | Value |
|---|---|
| Option 1D5 | High-stability frequency reference |
| Option 1E1 | 70 dB step attenuator (extends minimum source power to -85 dBm) |
| Option 1EC | 75 Ω system impedance (replaces standard 50 Ω) |
System Specifications
| Parameter | Value |
|---|---|
| Internal Memory | 512 KB |
Sweep
| Parameter | Value |
|---|---|
| Minimum Sweep Time | 50 ms |
Hardware Options
| Parameter | Value |
|---|---|
| Option 100 | Fault Location |
| Option 101 | Structural Return Loss |
| Option 1F7 | LAN Interface |
Power Requirements
| Parameter | Value |
|---|---|
| Line Voltage | 90 to 132 VAC / 198 to 264 VAC |
| Line Frequency | 47 to 63 Hz |
| Maximum Power Consumption | 230 VA |
Interfaces
| Parameter | Value |
|---|---|
| User TTL I/O Connector | 25-pin D-sub female |
Hardware Features
| Parameter | Value |
|---|---|
| Number of Test Ports | 2 |
Technology
Vector Network Analysis
Applications
RF Component Testing & Characterization