SWR-777 Digital SWR & Power Meter 1.8-250MHz, 0.5-210W, USB-C, Audible SWR Alert

The Moonraker SWR-777 is a compact, feature-rich digital SWR and power meter designed for amateur radio operators and professional users who demand precision and reliability. Covering 1.8–250 MHz with a power range of 0.5–210W into 50Ω, it delivers real-time SWR and power monitoring with ±5% SWR accuracy and ±10% power accuracy. Fine calibration with ±20% correction ensures accurate readings across different setups. Audible and visual SWR alerts warn you instantly of high SWR conditions, protecting your transceiver and PA. Six customisable display layouts and physical buttons provide intuitive operation even in demanding field conditions. Powered via USB-C (5V/1A) with a built-in 3.7V/1000mAh battery featuring deep-discharge protection, and a programmable auto shut-off (2–99 minutes) for smart energy saving. Compact at just 8.8 x 6.3 x 3.8cm and 188g.

Key Features

• Frequency range: 1.8–250 MHz
• Power range: 0.5–210W
• SWR measurement accuracy: ±5%
• Power measurement accuracy: ±10%
• Fine calibration: ±20% correction
• Audible & visual SWR alerts
• Six customisable display layouts
• Physical button interface for precise control
• USB-C power input (5V/1A)
• Built-in 3.7V/1000mAh battery with deep-discharge protection
• Programmable auto shut-off: 2–99 minutes
• SO-239 (UHF-Female) connectors
• Nominal impedance: 50Ω
• Dimensions: 8.8 x 6.3 x 3.8cm | Weight: 188g
  

Technical Specifications

• Working frequency: 1.8–250 MHz
• Power range: 0.5–210W
• SWR accuracy: ±5%
• Power accuracy: ±10%
• Calibration: ±20%
• Impedance: 50Ω
• Connector: SO-239 (UHF-Female)
• Power supply: USB-C 5V/1A
• Battery: 3.7V / 1000mAh
• Dimensions: 8.8 x 6.3 x 3.8cm
• Weight: 188g