The Wiltron 6647A-40 is a programmable sweep generator delivering precise frequency control from 10 MHz to 18.6 GHz for microwave component testing and system alignment. This instrument combines hard-wired circuitry within a frequency module with flexible sweep modes, multiple marker types, and three leveling control options to meet demanding laboratory and production environments.
Technical Specifications
• Frequency Range: 10 MHz to 18.6 GHz
• Output Power: >10 dBm (internally leveled); >−82 dBm with Option 2 (70 dB Attenuator)
• Frequency Accuracy: ±10 MHz (CW Mode); ±15 MHz (Sweep Mode ≤50 MHz)
• Sweep Time: 0.01 to 99 seconds
• Power Level Accuracy: Within 1 dB
• Signal Purity: Harmonics typically −40 dBc from 2 to 26.5 GHz
• Sweep Modes: Full Sweep, F1 to F2 Sweep, M1 to M2 Sweep, Delta F F0 Sweep, Delta F F1 Sweep
• Markers: Video, RF, and Intensity
• Leveling Modes: Internal, Detector, Power Meter
– Key Features
• Phase-lock capability to external counter for enhanced frequency accuracy
• External sweep input: 0 to 10 V ramp signal via rear panel BNC connector (10 kΩ impedance)
• External FM and phase lock input via rear panel BNC connector
• Sweep triggering: AUTO, LINE, EXTERNAL (4 to 25 Vpk or TTL-compatible pulse, >1 µsec width, >5 µsec fall time), and SINGLE modes
• Self-test function with diagnostic codes upon power-up or manual activation
• Front panel controls accessible via optional GP-IB interface (Option 03)
– Typical Applications
Microwave component testing, system alignment, and automated production characterization where frequency stability, signal purity, and precise power control are essential.
– Compatibility & Integration
• GP-IB (IEEE-488/IEC 625) Interface: Optional (Option 03) for remote control and automated testing
• Option 2: 70 dB Attenuator for extended power range
• Part of the Wiltron 6600A Series of programmable sweep generators
