The HP Keysight 8672A is a classic synthesized signal generator covering the 2.0 to 18.0 GHz range. Featuring exceptionally flat, leveled RF output power and high spectral purity, it provides versatile AM, FM, and remote programmability via HP-IB, making it a reliable standard for microwave test and measurement applications.
Specifications
Frequency
| Parameter | Value |
|---|---|
| Minimum Frequency | 2.0 GHz |
| Maximum Frequency | 18.0 GHz |
| Frequency Resolution | 1 kHz, 2 kHz, or 3 kHz (band-dependent); front-panel selectable steps of 100 MHz, 1 MHz, 10 kHz, or 1 kHz |
Modulation
| Parameter | Value |
|---|---|
| Modulation | AM, FM |
General
| Parameter | Value |
|---|---|
| Reference Oscillator | Internal 10 MHz crystal reference oscillator; External 5 or 10 MHz reference input |
| Interfaces | HP-IB (IEEE-488) |
| Display | LED digital display for frequency; Analog meter for output level and modulation indicators |
Frequency Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 2.0 to 18.0 GHz (usable to 18.599997 GHz) |
| Frequency Resolution (2.0 to 6.2 GHz) | 1 kHz |
| Frequency Resolution (6.2 to 12.4 GHz) | 2 kHz |
| Frequency Resolution (12.4 to 18.0 GHz) | 3 kHz |
| Tuning Resolution Steps | 100 MHz, 1 MHz, 10 kHz, 1 kHz (selectable) |
| Internal Reference Oscillator | 10 MHz |
| External Reference Input Requirements | 5 or 10 MHz |
Amplitude and Output Power
| Parameter | Value |
|---|---|
| Output Leveling Control | Internal Automatic Leveling Control (ALC) or External Leveling |
| External Leveling Sensors | Diode detector or Power meter |
Spectral Purity
| Parameter | Value |
|---|---|
| Non-Harmonic Spurious (2.0 to 6.2 GHz) | <-70 dBc |
| Non-Harmonic Spurious (6.2 to 12.4 GHz) | <-64 dBc |
| Non-Harmonic Spurious (12.4 to 18.0 GHz) | <-60 dBc |
| Power Line Spurious | < -55 dBc (2.0 to 6.2 GHz); < -49 dBc (6.2 to 12.4 GHz); < -46 dBc (12.4 to 18.0 GHz) at up to 5 kHz offset |
Modulation Characteristics
| Parameter | Value |
|---|---|
| AM Modulation Source | External drive signal required |
| AM Depth Ranges | 30% and 100% full scale |
| AM External Input Level for Full Scale | 1.0 V peak (linear response) |
| FM Modulation Source | External drive signal required |
| FM Peak Deviation Ranges | 6 selectable ranges (0.03, 0.1, 0.3, 1, 3, and 10 MHz) |
| FM External Input Level for Full Scale | 1.0 V peak (linear response) |
Front and Rear Panel Interfaces
| Parameter | Value |
|---|---|
| RF Output Connector | Type-N female |
| RF Output Impedance | 50 ohms nominal |
Remote Control and Programming
| Parameter | Value |
|---|---|
| Remote Programming Interface | HP-IB (IEEE-488) |
Technology
Synthesized Signal Generation
Applications
Microwave RF signal generation, receiver testing, and local oscillator substitution