Description
The NISSEI Digital SWR Meter DG-503 1.6–525 MHz 200W is a high-performance RF measurement instrument designed to deliver accurate and reliable monitoring of Standing Wave Ratio (SWR), Forward Power, and Reverse Power across a wide operating frequency range. Built for communication professionals, RF engineers, and amateur radio users, this digital meter helps optimize antenna performance and maintain efficient signal transmission.
Supporting an extensive 1.6–525 MHz frequency range, the DG-503 is suitable for HF, VHF, and UHF applications, making it a versatile solution for communication testing and antenna system analysis. The integrated backlit LCD display provides clear and easy-to-read measurement values, improving usability in different operating environments.
With a maximum power handling capacity of 200W and an accuracy class of ±5%, the DG-503 delivers dependable RF measurement performance. The meter operates using DC 13.8V measuring voltage and is designed with a standard 50 Ohm impedance, ensuring compatibility with a broad range of radio and antenna systems.
This Digital SWR Meter enables users to measure SWR, Forward Power, and Reverse Power, helping identify power reflection issues and improve antenna matching for enhanced communication efficiency. Its compact design allows convenient installation and operation in both bench-top and field environments.
Specifications
- Model: NISSEI DG-503
- Frequency Range: 1.6–525 MHz
- Accuracy Class: ±5%
- Maximum Power: 200W (Max)
- Display Type: Digital Backlight LCD Display
- Functions: SWR / Forward Power / Reverse Power
- Measuring Voltage: DC 13.8V
- Impedance: 50 Ohm
- Dimensions: 140 × 82 × 122 mm
Key Features
- Wideband RF measurement from 1.6–525 MHz
- Measures SWR, Forward Power, and Reverse Power
- High-visibility backlit LCD display
- Supports up to 200W RF power measurement
- ±5% accuracy for dependable monitoring
- Standard 50 Ohm RF compatibility
- Compact and professional desktop design
- Suitable for antenna tuning and RF performance optimization
Applications
- Amateur (Ham) radio operation
- Antenna tuning and SWR monitoring
- RF communication system testing
- HF, VHF, and UHF equipment setup
- Base station maintenance
- Signal transmission optimization
- Radio and antenna performance analysis
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