Description
Introducing the NISSEI DG-503 Digital SWR Power Meter – the ultimate companion for short‑wave enthusiasts, ham radio operators, and RF technicians. Designed to cover a broad frequency range from 1.6 MHz to 525 MHz, this compact standing‑wave ratio (SWR) and power meter delivers precise measurements with a bright 3.5‑inch LCD display, ensuring you stay in tune and on‑track every time you transmit.
Key Features & Benefits
- Wide Frequency Coverage: Accurate SWR, forward/reverse power, and voltage readings across 1.6 MHz – 525 MHz, suitable for HF, VHF, and UHF applications.
- Crystal‑Clear 3.5‑inch LCD: Large backlit screen shows real‑time data, graphs, and bar indicators for instant visual feedback.
- Dual‑Mode Operation: Switch effortlessly between Power Meter and Standing Wave Ratio (SWR) modes for versatile testing.
- High Precision Sensors: Built‑in directional coupler and calibrated detectors guarantee ±0.5 dB power accuracy and ±0.05 : 1 SWR resolution.
- Compact & Rugged Design: Portable 150 mm × 80 mm chassis with a durable metal case withstands field conditions.
- Easy Calibration: One‑button auto‑calibration saves time and maintains measurement integrity.
- Battery‑Operated Flexibility: Runs on a rechargeable 9 V battery or optional AC adapter for continuous operation.
Why Choose the NISSEI DG-503?
The DG-503 combines professional‑grade accuracy with user‑friendly ergonomics. Whether you’re fine‑tuning an antenna, troubleshooting a transmitter, or performing routine maintenance, this meter provides the data you need—quickly and reliably. Its intuitive interface reduces setup time, while the robust construction ensures long‑term durability.
Technical Specifications
- Frequency Range: 1.6 MHz – 525 MHz
- Power Measurement Range: 0 – 200 W (adjustable)
- SWR Range: 1.0 : 1 – 10 : 1
- Display: 3.5‑inch LCD, backlit, 256 × 64 pixels
- Accuracy: ±0.5 dB (Power), ±0.05 : 1 (SWR)
- Power Supply: 9 V rechargeable battery or 12 V DC adapter
- Dimensions: 150 mm × 80 mm × 45 mm
- Weight: 350 g
- Operating Temperature: -10 °C – 55 °C
Perfect For
- Ham radio operators seeking precise antenna tuning.
- RF engineers and field technicians conducting SWR checks.
- Amateur radio clubs and training schools.
- Anyone needing a reliable, portable power and SWR meter for short‑wave applications.
Upgrade your RF toolkit with the NISSEI DG-503 Digital SWR Power Meter and experience unmatched accuracy, convenience, and performance. Order now and keep your transmissions perfectly matched!
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