Anritsu 69145A Synthesized Sweep Generator, 0.01 – 65.0 GHz

The Anritsu 69145A is a synthesized sweep generator spanning 0.01 GHz to 65.0 GHz, engineered for RF and microwave component validation across commercial and defense applications. It delivers output power from −125 dBm to +17 dBm with phase noise of −100 dBc/Hz at 10 kHz offset from 10 GHz, enabling precise characterization of complex systems.

– Technical Specifications

Frequency Range: 0.01 GHz to 65.0 GHz with single coaxial output

Output Power: +17 dBm maximum; −125 dBm minimum

Phase Noise (SSB): −100 dBc/Hz at 10 kHz offset from 10 GHz

Sweep Modes: Analog sweep (1 MHz to full range, continuous); Step sweep (1 to 10,000 steps, 1 kHz to full range step size, 0.1 Hz optional resolution); Manual sweep (phase-locked stepped frequency adjustment); Alternate sweep (two independent ranges with selectable power per range). Step dwell time variable from 1 ms to 99 seconds.

Sweep Performance: Maximum switching time <40 ms to within 1 kHz of final frequency; step sweep <15 ms + 1 ms/GHz or <40 ms (whichever is less). Up to 1000 non-sequential frequencies programmable under GPIB control.

Trigger Modes: Auto, External (TTL low-to-high), and Single, available for analog frequency, step frequency, and CW power sweep.

Modulation: Internal AM, FM, phase modulation, and pulse modulation; user-downloadable complex modulation capability.

Reference Output: 10 MHz, 0.5 V p-p into 50 Ω, AC coupled, rear panel BNC connector.

Power Requirements: 115 Vac ±20% or 230 Vac ±20%, 48–400 Hz, single-phase; maximum 400 VA consumption.

– Key Features

• Marker accuracy matches sweep frequency accuracy
• Marker resolution (analog sweep): 1 MHz or Sweep Width/4096, whichever exceeds the other
• GPIB remote control with local front-panel operation
• AUX I/O for external sweep triggering on rear panel
• Low spurious signal performance with controlled harmonic suppression

– Typical Applications

Component S-parameter measurement, subsystem gain and phase characterization, system-level RF validation, and defense sector developmental testing requiring wide-band frequency agility and fast stepping.

– Compatibility & Integration

IEEE-488 GPIB interface for full remote programmability. Reference output enables clock synchronization with external test systems.