---
product_id: 87413192
title: "Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter"
brand: "nissei"
price: "A$16"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/87413192-nissei-dg-503-swr-meter-hf-50-144-430-mhz
store_origin: AU
region: Australia
---

# 3.5" Backlit Display 0-200W Power Range SO-239 Connectors Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter

**Brand:** nissei
**Price:** A$16
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Signal Game!

## Quick Answers

- **What is this?** Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter by nissei
- **How much does it cost?** A$16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/87413192-nissei-dg-503-swr-meter-hf-50-144-430-mhz)

## Best For

- nissei enthusiasts

## Why This Product

- Trusted nissei brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact and Portable:** Lightweight design (750g) makes it perfect for on-the-go professionals.
- • **Dual Band Capability:** Seamlessly switch between HF/6m and 144/430 MHz bands.
- • **Minimal Insertion Loss:** Benefit from less than 0.1 dB insertion attenuation for optimal performance.
- • **User-Friendly Interface:** Enjoy a large, backlit 3.5-inch display for easy visibility.
- • **Precision Power Measurement:** Experience accurate readings with a power range of 0 to 200 W.

## Overview

The Nissei DG-503 SWR Meter is a versatile digital wattmeter designed for HF and VHF/UHF bands, featuring a power range of 0 to 200 W, a large backlit display, and minimal insertion loss, making it an essential tool for any serious radio operator.

## Description

After the pleasing success of the RS-50/RS-70 digital watt meters, we are pleased to announce another Nissei digital wattmeter, the DG-503, base station version, for power up to 200 watts with 5% accuracy (minimum power applicable to display VSWR is 1 watt). The DG-503 works in the bands from 1.6 to 60 MHz and 125 to 525 MHz, with a power output from 0 to 200W, measures and simultaneously displays on the large 3.5” backlit display: direct power, reflected power and VSWR. Features separate inputs and outputs with front selectable SO-239 connectors for the HF/6 m and 144/430 MHz band. Insertion attenuation less than 0.1 dB. Dimensions 140 x 84 x 122 mm. Weight 750 grams. Included in the package: user manual in Italian (English language not guaranteed) and 12 VDC power cable for the display backlight.

## Features

- The DG-503 works in the 1.6 to 60 MHz and 125 to 525 MHz bands, with a power of 0 to 200 W, measures and displays simultaneously on the large 3.5-inch backlit display direct power, reflected power and VSWR. Features separate inputs and outputs with front selectable SO-239 connectors for the HF/6 m and 144/430 MHz band. Insertion attenuation less than 0.1dB. Dimensions 140 x 84 x 122 mm. Weight 750 grams. Included in the package: user manual in Italian (English language not guaranteed).
- Features separate inputs and outputs with front selectable SO-239 connectors for the HF/6 m and 144/430 MHz band.
- Less than 0.1 dB insertion attenuation.
- Dimensions 140 x 84 x 122 mm - Weight of 750g
- Included in the package: user manual in Italian (English language not guaranteed) and 12 VDC power cable for the display backlight.

## Images

![Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter - Image 1](https://m.media-amazon.com/images/I/51XTLqP7r9L.jpg)
![Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter - Image 2](https://m.media-amazon.com/images/I/51QDuyp92nL.jpg)
![Nissei DG-503 SWR Meter - HF/50/144/430 Mhz Digital Wattmeter - Image 3](https://m.media-amazon.com/images/I/41j0jiRETWL.jpg)

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**Shop now:** [https://www.desertcart.com.au/products/87413192-nissei-dg-503-swr-meter-hf-50-144-430-mhz](https://www.desertcart.com.au/products/87413192-nissei-dg-503-swr-meter-hf-50-144-430-mhz)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-17*