The Wiltron 63G50 is a precision fixed attenuator engineered for RF and microwave signal conditioning and measurement applications. Part of the Wiltron 63 Series of SWR Autotesters and bridges, it delivers stable, accurate attenuation across broadband frequencies while maintaining minimal signal distortion. The instrument excels in fixed- and swept-frequency return loss (SWR) measurements, making it ideal for characterizing amplifiers, directional couplers, filters, splitters, and terminations across a wide range of radio frequencies.
Technical Specifications
• Frequency Range: 10 MHz to 4 GHz
• Input Impedance: 50 ohms
• Accuracy: 0.01 ±0.06ρ² (reflection coefficient)
• Directivity: 40 dB (standard); 46 dB available (Option 1)
• Test Port Connector: GPC-7
• Dimensions: 6.7 × 5.1 × 2.54 cm (2.64 × 2.01 × 1.00 in.) plus connectors
– Key Features
• Broadband operation from 10 MHz to 4 GHz with consistent performance across the spectrum
• Built-in RF detector with square law response below −15 dBm and linear response above −15 dBm
• Directivity specification of 40 dB (0.01 ±0.06ρ² accuracy) with optional 46 dB directivity upgrade
• 50 ohm matched design with GPC-7 connector interface
• Precision reflection coefficient accuracy accounting for directivity and test port mismatch effects
– Typical Applications
• Fixed- and swept-frequency return loss measurements
• SWR characterization of microwave components
• Signal conditioning in broadband measurement setups
• Performance assessment of RF amplifiers, couplers, and filters
• Component verification and quality control in microwave test environments
– Compatibility & Integration
The 63G50 integrates with Wiltron 63 Series SWR Autotesters and bridges. All connectors use GPC-7 mating interface. Small signal measurements benefit from optional RF amplification prior to detection.

















