• Nissei DG-503MAX Digital SWR & Watt Meter HF / VHF / UHF
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  • Nissei DG-503MAX Digital SWR & Watt Meter HF / VHF / UHF
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MFJ-849 Nissei DG-503MAX Digital SWR & Watt Meter for HF / VHF / UHF Analog & Digital Radios | 1.6-60 MHz, 125-525 MHz | 200 Watt

Nissei DG-503MAX

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Product Highlights
  • Measures Analog (FM, CW, FDMA) & Digital Modes (DMR, AM, SSB)
  • Covers HF (1.6-60MHz), VHF / UHF (125-525 MHz)
  • 200 Watt Power Rating
  • AM Carrier ✅, AM PeP ❌, AM RMS ✅, FM ✅, SSB ✅
  • Alternative to the MFJ-849
  • *NOTE* Power Supply Not Included - Requires 1A 12VDC Power Supply
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Free Phone Support
844-925-2688 9-5 Mon-Fri
Frequency
1.6 - 60 MHz1.6 - 525 MHz
Display
Digital (LCD)
Style
Desktop

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  • Description
The Nissei DG-503MAX is a digital SWR & watt meter that is highly accurate and covers the HF/VHF/UHF bands. The large LCD displays Forward / Reflected power and SWR simultaneously and is bright and easy to read. There are input/output connectors for both HF & VHF/UHF that you can toggle between with the switch in the front of the meter.
Its rear switch allows you to operate on FM, CW, FDMA, or DMR (TDMA) ,AM, SSB while in the MAX ON position. Includes 12V DC power wire. Alternative to the MFJ-849

MFJ-849 vs Nissei DG-503MAX comparison

DG-503MAX Technical Specifications

AM Carrier✅
AM PeP❌
AM RMS✅
FM✅
SSB✅
Frequency Range1.6 - 60 MHz / 125 - 525 MHz
Measurement (Analog Mode)CW, FM, FDMA
Measurement (MAX Mode)DMR (TDMA), AM, SSB
Calibration Point28 / 145 / 435 MHz
Power Range0 - 200W
Accuracy± 5%
Minimum Power for SWR1W
Input/Output ConnectorsSO-239 (UHF Female)
Insertion LossLess than 0.1 dB
Testing FunctionForward / Reflected Power & VSWR
Input Output Impedance50 Ohm
Dimensions (W x H x D)140 x 84 x 122mm | 5.5 x 3.3 x 4.8 inch
What wire is positive and ground?

The wire with the dashed white line is positive, the other wire with no coloration is ground

How does this meter get power?

You need to use at least a 12VDC 1A power source for this meter to function. In a vehicle, you can tap into any 12V power source. At home you need a separate power supply (sold separately).

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