Repair and Service Evaluation – HP/Agilent 83620A,83620B,83620L,83621A,83621B,83622A,83622B (Repair)

The HP/Agilent 83620 series signal generators are high-performance synthesized sweepers engineered for precision frequency generation, modulation, and signal simulation across microwave frequencies. Repair and service evaluation restores these instruments to original operating specifications through comprehensive diagnostics and functional restoration.

– Technical Specifications

Frequency Coverage
• 10 MHz to 20 GHz (83620A, 83620B, 83620L)
• 45 MHz to 20 GHz (83621A, 83621B)
• 2 GHz to 20 GHz (83622A, 83622B)
• Frequency Resolution: 1 kHz standard; 1 Hz optional (Option 008)

RF Output Power
• Maximum Leveled Power: +13 dBm
• RF Output Range: +20 dBm to -110 dBm (with Option 001 Step Attenuator)
• Power Sweep Range: -20 dBm to maximum power

Signal Purity
• Harmonics: ≥50 dB below carrier (2.2 GHz to 20 GHz)
• Phase Noise at 20 GHz, 10 kHz offset: -70 dBc (83620A); -76 dBc (83622A)

Modulation Performance
• Pulse Modulation: >80 dB on/off ratio; <10 ns rise/fall time (Option 006) or 25 ns standard; <1 µs minimum pulse width (internally leveled)
• Amplitude Modulation: 100%/V linear mode; 10 dB/V scan mode; 99.7% modulation depth; 100 kHz bandwidth (DC-coupled)
• Frequency Modulation: DC-coupled to 8 MHz; ±8 MHz maximum deviation (locked)

Time Base
• Internal 10 MHz oscillator with 5 × 10⁻¹⁰/day aging rate and 1 × 10⁻⁷/year annual drift

Physical
• Dimensions: 178 mm H × 425 mm W × 648 mm D
• Net Weight: 27 kg

– Key Features

• Broadband frequency coverage with 1 kHz minimum resolution
• Fast pulse modulation capabilities with sub-10 ns transitions
• Dual modulation modes—AM and FM—with DC coupling
• Step attenuator option extends dynamic range to -110 dBm
• Internal modulation generator (Option 002)
• Rear panel RF output (Option 004)
• MATE system compatible (Option 700)

– Typical Applications

Component characterization, receiver sensitivity testing, integrated circuit validation, antenna pattern measurement, and microwave subsystem alignment across communications, radar, and satellite test environments.

– Compatibility & Integration

These models integrate with MATE test systems and support external modulation through rear-panel connectivity. Internal time base meets long-term frequency stability requirements for precision applications.