Aeroflex FS2000 Series Direct Analog Synthesizers
2 models with full specifications from Aeroflex.
The Aeroflex FS2000 Series consists of high-performance direct analog frequency synthesizers designed for demanding applications such as radar testing and fast automatic test equipment (ATE) systems. Both the FS-2000A-18 and FS-2000B-18 utilize an iterative, modular direct analog synthesis architecture to deliver sub-microsecond frequency switching and level correction speeds. Covering a broad frequency range of 10 MHz to 18.4 GHz, these instruments provide technical buyers and testing engineers with the critical spectral purity and speed required for advanced RF testing. This page outlines the shared capabilities of the FS2000 family, details how individual models differ in physical form factor and control interfaces, and assists engineers in identifying the proper synthesizer for specific system integration or benchtop requirements.
- Frequency Range
- 10 MHz to 18.4 GHz
- Switching Speed
- < 1 µs
- Architecture
- Direct Analog Synthesis
- Output Impedance
- 50 Ω
Models in this series
| Model | Type | Form Factor | Frequency Range | Frequency Resolution |
|---|---|---|---|---|
| FS-2000A-18 | Level | 19-inch rackmount | 10 MHz to 18.4 GHz | 1 Hz (optional to 0.1 Hz) |
| FS-2000B-18 | Level | Keyboard mainframe with GPIB control | 10 MHz to 18.4 GHz | 1 Hz |
Modular Direct Analog Architecture
The defining feature of the Aeroflex FS2000 series is its iterative, modular direct analog synthesis architecture. Unlike indirect synthesis methods, this architecture enables a frequency switching speed of less than 1 µs. Along with rapid frequency transitions, the series delivers sub-microsecond level correction to ensure stable, fast-amplitude transitions across the full frequency range. This rapid response is critical for agile signal simulation and electronic warfare testing.
Model Comparison: Form Factor and Interfaces
While sharing core RF capabilities, the models differ significantly in interface and physical layout. The FS-2000A-18 is designed as a standard 19-inch rackmount unit (measuring 482.6 mm × 133.4 mm × 558.8 mm) suitable for integrated system racks. It features Parallel BCD as its standard interface, with an option to add GPIB. For frequency resolution, the FS-2000A-18 is standard with 1 Hz resolution but can be optionally configured to 0.1 Hz. Conversely, the FS-2000B-18 is configured as a keyboard mainframe featuring standard GPIB control. The FS-2000B-18 offers a fixed 1 Hz frequency resolution and includes an internal central reference generator capable of synthesizing 50, 100, 150, 200, and 800 MHz signals from a 100 MHz reference.
Spectral Purity and Output Performance
Spectral purity is a key design metric for the FS2000 family. The FS-2000A-18 provides exceptional performance with a typical non-harmonic spurious level of <-70 dBc and harmonics below -25 dBc. Its single sideband (SSB) phase noise at a 10 GHz carrier is -114 dBc/Hz at both 10 kHz and 100 kHz offsets. The RF output is delivered via a rear-panel SMA female connector with a nominal 50 Ω output impedance, producing a minimum RF output power of +10 dBm (+13 dBm typical). For system synchronization, the FS-2000A-18 can accept an external reference input frequency of either 5 MHz or 10 MHz to align its performance with house standards.
Frequently asked questions
- What is the frequency range of the Aeroflex FS2000 series?
- Both the FS-2000A-18 and FS-2000B-18 cover a frequency range from 10 MHz to 18.4 GHz.
- How fast do these synthesizers switch frequencies?
- Both models feature a sub-microsecond frequency switching speed of less than 1 µs.
- What are the primary interface and form factor differences?
- The FS-2000A-18 is a 19-inch rackmount unit with standard Parallel BCD control (optional GPIB). The FS-2000B-18 is a keyboard mainframe with standard GPIB control.