The Wavetek 446B is a wideband calibration standard engineered for precise verification of RF power meters and sensors across frequency ranges. It delivers stable, consistent power outputs that enable accurate calibrations and traceable measurements critical to RF and microwave applications.
Technical Specifications
• Power Output Stability: Short-term stability of ±0.05% over 10 minutes; long-term stability of ±0.25% over 24 hours
• Waveform Purity: Sine distortion less than 0.5% on select ranges; less than 1.0% on others. Harmonics attenuate to 34 dB below fundamental on the ×1 MHz range
• Amplitude Control: Step and vernier attenuators provide precision adjustments down to 60 dB in 20 dB steps plus 20 dB vernier control
• Operating Temperature: 0°C to 50°C ambient
– Key Features
• Voltage Controlled Generator (VCG) input for external frequency modulation with 2 kΩ input impedance
• VCG achieves 1000:1 frequency change ratio with 100 kHz signal bandwidth and 0.1 V/µs slew rate
• Generator Controlled Voltage (GCV) output: 0 to +2 V proportional to main generator frequency with 600 Ω source impedance
• Vernier and step attenuator architecture for fine amplitude resolution
– Typical Applications
• RF power meter calibration and verification
• Sensor validation across wideband frequency ranges
• Traceable measurement standards for microwave testing
• Precision amplitude and frequency control in laboratory and production environments
– Compatibility & Integration
The 446B integrates external modulation signals via VCG input and outputs a control voltage proportional to generator frequency, enabling integration into automated test systems and frequency-locked measurement setups.
