The Fluke 397 is a dual-channel universal waveform generator combining synthesis and arbitrary waveform generation for test, calibration, and troubleshooting across telecommunications, radar, and audio/video applications. It delivers 14-bit vertical resolution, 125 MSa/sec sampling, and a 4 MB arbitrary waveform memory divided into up to 2048 segments.
Technical Specifications
Waveform Generation
• Waveform types: Sine, square, triangle, sawtooth, Gaussian pulse, exponential decaying/rising pulse, sine(x)/x, pulse/ramps, random noise, DC, and arbitrary/complex waveforms
• Dual independent channels with <5 ns initial skew between channels
• 14-bit vertical resolution (16,384 output levels)
• Arbitrary waveform memory: 4 MB word, segmentable to 2048 divisions
• Sampling rate: 125 MSa/sec
Frequency Performance
• Sine/square output: 100 mHz to 50 MHz
• Triangle, pulse/ramps, Gaussian pulse, exponential pulse, sine(x)/x: up to 12.5 MHz
• Sine, cosine, haversine, havercosine: 0.1 mHz to 16 MHz
• Frequency resolution: 0.1 Hz (DDS: 7-digit; non-DDS: 4-digit)
• Sweep range: 1 mHz to 10 MHz
• Harmonic distortion (sine/cosine): <−60 dBc to 20 kHz, <−50 dBc to 1 MHz, <−35 dBc to 10 MHz
• Total harmonic distortion: <0.1% typical
• Non-harmonic spurii: <−65 dBc to 1 MHz
Amplitude and Offset
• Output amplitude: 10 mVpp to 10 Vpp (50 Ω load); 20 mVpp to 20 Vpp (open circuit)
• Amplitude resolution: 1 mV
• DC offset range: ±5 V
• Offset resolution: 1 mV
• Output impedance: 50 Ω
– Key Features
• Internal and external synchronization with tight inter-channel control via shared sample clock
• Multiple operating modes: normal, triggered, counted burst, gated, FM, sweep, N-cycle burst, sequence generator
• Modulation support: FM, PM, PWM, FSK
• Trigger sources: internal (100 mHz to 2 MHz), external TTL (DC to 2 MHz), manual, or remote interface
• Master/slave multi-instrument configurations via dedicated synchronization connector
– Typical Applications
Research and development, calibration labs, educational institutions, telecommunications testing, radar signal simulation, audio/video system verification.
