Nissei DG-503 Digital SWR and Power Meter for Analog and Digital Radios (1.6-60 MHz / 125-525 MHz, 200 Watts)

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Details

This model measures NXDN (FDMA) digital. For DMR (TDMA) choose the DG-503MAX.

The Nissei DG-503 is a digital power and S.W.R. meter for analog and digital two way radios with a maximum measurable power range of up to 200W. It has UHF Female (SO-239) in and out connectors.

highly accurate for measuring Forward Power, Reflected Power, and the VSWR of Analog and Digital transceivers
Large LCD (3.5″) backlit display for easy of reading
Measurement (Analog mode): CW, FM, FDMA
Calibration point: 28 / 145 / 435 MHz
Maximum measurable power range up to 200W
Minimum Power for SWR 1W
Checks your antenna SWR
Checks your radio RF power wattage
Easy to install
DC Power source: 12V DC Wire
Applicable rechargeable battery.
Convenient control layout for easy operation.
Frequency range: 1.6-60 MHz / 125-525 MHz
Insertion Loss: Less than 0.1 dB
Testing functions: Fwd/Rev Power, SWR ratio
Accuracy: (AVG) + / - 5%
Impedance: 50 Ohm
Interface (in and out): UHF female (SO-239)
Includes operation manual and DC 12V wire
Model number: DG-503
Dimensions: 5.51 in.(W) x 3.30 in. (H) x 4.80 in. (D) / 140 x 84 x 122 mm
Net Weight: 1.65 lbs. / 750g

Additional Information

Warranty	90 Days

Needs to be calibrated review by N4NNX on 8/7/2024

Rating

Great little meter for what I needed. Like every digital swr meter I’ve ever owned they are never exact out of the box unlike most cross needles or Byrd meters. There are two potentiometers that can be adjusted inside to do this. Once calibrated its on the money and does what it was designed to do.
Customer Service review by bobbywmc on 3/26/2024

Rating

Had several questions and emailed customer service. Email was replied to next business day and questions answered by Anthony.. Great customer service! Thanks!
Needs better instructions review by JC on 1/28/2024

Rating

Does well 2M, 70cm, HF needs better instructions. This model does not measure on SSB, set your radio to FM and it works as expected. Instructions vague on this. Otherwise it is good.