The Marconi IFR Aeroflex 2023B is a synthesized signal generator spanning 9 kHz to 2.05 GHz, engineered for laboratory, production, and maintenance testing. It delivers precise frequency control with 1 Hz resolution and output spanning -140 dBm to +13 dBm standard (up to +25 dBm with high power option). The instrument combines excellent spectral purity—harmonics better than -30 dBc and non-harmonics better than -70 dBc to 1 GHz—with comprehensive modulation capabilities including AM, FM, phase modulation, pulse, FSK, and two-tone modes. An internal LF generator (0.01 Hz to 20 kHz) supports both linear and logarithmic sweep functions. All operating parameters except power control are remotely programmable via GPIB and RS-232 interfaces.
Technical Specifications
Frequency Range: 9 kHz to 2.05 GHz with 1 Hz resolution
Output Level:
• Standard: -140 dBm to +13 dBm (0.1 dB resolution)
• High Power Option: -140 dBm to +25 dBm
Spectral Purity:
• Harmonics: Better than -30 dBc (RF ≤+7 dBm); better than -25 dBc (RF ≤+13 dBm)
• Non-Harmonics: Better than -70 dBc to 1 GHz; better than -64 dBc from 1–2.05 GHz; better than -60 dBc above 2.05 GHz (offsets >3 kHz)
• SSB Phase Noise: Typically -121 dBc/Hz at 1 GHz (20 kHz offset); better than -124 dBc/Hz at 470 MHz (20 kHz offset)
• Residual FM: Typically 3 Hz (FM off); <4.5 Hz RMS deviation (300 Hz–3.4 kHz bandwidth)
– Key Features
Modulation:
• AM: Up to 99.9% depth, <2.5% distortion (≤80% depth at 1 kHz)
• FM: Up to 100 kHz deviation, 45 dB on/off ratio (<1.2 GHz), <10 µs rise time
• FSK: 3.9 kHz Bessel filtered
• Two-Tone: Programmable sine, triangle, square outputs
Internal Modulation Oscillator: 0.01 Hz to 20 kHz (5-digit resolution)
Sweep: Linear and logarithmic modes
– Compatibility & Integration
GPIB and RS-232 interfaces enable full remote programming of all functions except power supply switching.
