The Anritsu 68369B is a microprocessor-based synthesized sweep/signal generator covering 0.01 GHz to 40 GHz, engineered for RF system development, validation, and laboratory characterization. It delivers discrete CW frequencies and analog or phase-locked step sweeps with high output accuracy and low spurious signals across demanding frequency ranges.
Technical Specifications
Frequency Coverage: 0.01 GHz to 40 GHz with 1 kHz resolution (0.1 Hz with Option 11).
Output Power:
• 0.01–2.0 GHz: +13.0 dBm
• 2.0–20.0 GHz: +9.0 dBm
• 20.0–40.0 GHz: +6.0 dBm
• Maximum: +17 dBm; Minimum: –125 dBm
Phase Noise: Ultra-low SSB phase noise of –100 dBc at 10 kHz offset from 10 GHz.
Time Base Stability:
• Internal: <2 × 10⁻⁸/day aging; <2 × 10⁻⁸/°C over 0–55 °C (enhanced to <5 × 10⁻¹⁰/day and <2 × 10⁻¹⁰/°C with Option 16).
• External 10 MHz reference input: 0 to +10 dBm.
• 10 MHz reference output: 0.5 Vp-p into 50 Ω, AC coupled.
CW Mode: Twenty presettable frequencies (F0–F9, M0–M9) with <40 ms switching time to within 1 kHz.
Analog Sweep Mode: Sweep width from 1 MHz to full range; sweep time 30 ms to 99 seconds; frequency accuracy the lesser of 30 MHz or (2 MHz + 0.25% of sweep width) at speeds ≤50 MHz/ms.
Phase-Locked Step Sweep Mode: Up to 10,000 steps; step size 1 kHz to full range (0.1 Hz with Option 11); dwell time 1 ms to 99 seconds; switching time <15 ms + 1 ms/GHz or <40 ms, whichever is less.
Alternate and Manual Sweep Modes: Alternate sweeps between two ranges with independent power levels; manual mode provides stepped, phase-locked frequency adjustment.
Modulation: Internal AM, FM, phase, and pulse modulation; user-downloaded complex modulation.
– Key Features
• Twenty independent, presettable CW frequency memories
• Sub-kilohert frequency resolution with enhanced stability options
• Low phase noise for precision signal characterization
• Variable step count and dwell time in step sweep mode
• Dual-sweep capability with independent power assignment
– Interface
IEEE-488 GPIB for local and remote instrument control.
