The Marconi IFR Aeroflex FS1200 is a fast-switching frequency synthesizer engineered for high-speed automated testing, communication systems, and radar applications. Its multi-loop architecture delivers sub-100 microsecond switching performance while maintaining exceptional spectral purity across a wide frequency range. Built from standard RF modules on a common motherboard, the FS1200 enables simplified maintenance and rapid field reconfiguration without calibration adjustments.
Technical Specifications
Frequency Range: 4.5 MHz to 6.0 GHz
Switching Speed: Less than 100 µsec; less than 5 microseconds between ports
Phase Noise: Typically less than -123 dBc/Hz at 10 kHz offset (2 GHz); greater than -130 dBc/Hz at 10 kHz offset (1.0 GHz)
Output Power: +7 dBm nominal
Output Flatness: ±1.5 dB
Output Isolation: Minimum 25 dB between ports
VSWR: 1.8:1
Step Size: 1 Hz (4.5 MHz to 1999 MHz); 2 Hz (2000 to 3999 MHz); 4 Hz (4000 to 6010 MHz)
Spurious Levels: Typically less than -70 dBc; may exceed -65 dBc. Fixed spurs exist at specific frequencies (1175–1625 MHz range). Spur at 800 MHz may appear at -60 dBc across all carrier frequencies.
External Reference: 10 MHz, 3 dBm ±4 dB, 50 Ohms
Frequency Stability: Equivalent to reference oscillator
MTBF: Exceeds 12,000 hours
– Key Features
• Multi-loop design balancing phase noise with rapid frequency resolution
• Modular RF architecture permitting field component upgrades without realignment
• Hybrid synthesizer topology combining direct and indirect synthesis advantages
• Parallel BCD control interface with remote RF on/off capability
• Standard 10 MHz external reference input for phase-locked operation
– Typical Applications
• Automated test equipment (ATE) for wireless devices
• Communication system validation
• Radar and navigation system testing
• Mobile network device characterization
• Bluetooth product qualification
– Compatibility & Integration
The FS1200 addresses testing requirements for diverse wireless standards and complex modulation schemes. Its deterministic switching and low phase noise suit high-throughput validation of mobile network infrastructure, handheld devices, and emerging wireless protocols.
