The Narda 4782-20 is a fixed coaxial RF attenuator delivering 20 dB nominal attenuation across DC to 18 GHz. Engineered for precise signal level reduction in RF and microwave systems, this component maintains attenuation accuracy within ±0.5 dB and operates reliably at average power inputs up to 2 W and peak power inputs to 0.2 kW. The attenuator features SMA male-to-female connectors for direct integration into standard RF test setups and system configurations.
Technical Specifications
• Attenuation: 20 dB (nominal), ±0.5 dB deviation
• Frequency Range: DC to 18 GHz
• Maximum Average Power Input: 2 W
• Maximum Peak Power Input: 0.2 kW
• VSWR: 1.20 max. (DC to 4 GHz)
• Temperature Coefficient: 0.0006 dB/dB/°C
• Power Coefficient: 0.0005 dB/dB/W
• Connector Type: SMA Male to SMA Female
– Key Features
• Compact form factor: 0.95 inches length × 0.40 inches diameter
• Lightweight construction at 0.5 oz maximum
• Minimal frequency-dependent loss variation across the full operating band
• RoHS compliant
– Typical Applications
• Signal attenuation in RF measurement and test systems
• Power level control in microwave signal chains
• Impedance matching and VSWR optimization in wideband networks
• Protection of sensitive receiver front ends
– Compatibility & Integration
SMA connector compatibility ensures straightforward integration with RF test equipment, antennas, signal sources, and system components across commercial, industrial, and military RF platforms operating from baseband through 18 GHz.
