The Anritsu 68377B is a synthesized sweep/signal generator delivering stable, accurate RF signal generation from 0.01 GHz to 50 GHz. Built for demanding test environments, it combines ultra-low phase noise performance with flexible sweep architecture and advanced modulation capabilities. The instrument supports analog sweep, step sweep with phase locking, and manual sweep modes, each with independently selectable width from 1 kHz to full range. Twenty presettable CW frequencies (F0–F9, M0–M9) with 1 kHz resolution enable rapid frequency switching in under 40 ms typical. Output power ranges from +12 dBm at low frequencies to +2.5 dBm at 50 GHz, with optional step attenuator for refined power control. Phase noise measures –100 dBc at 10 kHz offset from 10 GHz. The generator integrates AM, FM, and pulse modulation with internal waveform generators supporting Gaussian noise and arbitrary user-defined signals. Pulse modes include doublet, triplet, and quadruplet configurations for RADAR testing. Spurious performance reaches –60 dBc above 2 GHz to 20 GHz. An internal or external 10 MHz time base maintains frequency accuracy, with optional ovenized crystal oscillator available for enhanced stability.
Technical Specifications
• Frequency Range: 0.01 GHz to 50 GHz
• CW Frequency Resolution: 1 kHz (0.1 Hz with Option 11)
• Output Power: +12 dBm (0.01–2.0 GHz), +10 dBm (2.0–20.0 GHz), +2.5 dBm (20.0–50.0 GHz)
• Phase Noise: –100 dBc/Hz @ 10 kHz offset from 10 GHz
• Harmonic Spurious: –30 dBc (10–50 MHz), –40 dBc (>50 MHz to 2 GHz), –60 dBc (>2 GHz to 20 GHz), –40 dBc (>20 GHz to 40 GHz)
• Sweep Dwell Time: 1 ms to 99 seconds per step
• Frequency Switching Time: <15 ms + 1 ms/GHz step, or typically <40 ms
• Power Level Flatness (Analog Sweep): 2.0 dB typical (0.05–20 GHz)
– Key Features
• Analog, step (phase-locked), and manual sweep modes with alternate range capability
• AM, FM, pulse modulation with internal generators producing seven waveforms
• Pulse doublet, triplet, quadruplet output for RADAR blind spot testing
• Phase modulation option and complex modulation support
• Step attenuator option for extended power range control
• Internal or external 10 MHz time base; optional ovenized oscillator
– Typical Applications
• RF component characterization and validation
• System-level verification across extended frequency bands
• High-volume manufacturing test automation
• RADAR signal simulation and testing
– Compatibility & Integration
Remote programmability enables integration into automated test systems. Presettable frequencies and simultaneous synchronized modulations support complex signal scenarios in production environments.
