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

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

SKU: DG-503MAX
The Nissei DG-503MAX 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.
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$189.99

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

This model measures NXDN (FDMA) and DMR (TDMA) digital radios.

The Nissei DG-503MAX 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
  • Measurement (MAX mode): DMR (TDMA), AM, SSB
  • 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
  • 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-503MAX
  • 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

More Information

Warranty 90 Days

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Precise and simple controls
Review by K4CQO
I replaced an analog Nessie SWR meter with this one and I am very happy with the upgrade. I no longer have to set the Xmit level and the display is large and very easy to read.

I like that it will support SSB and DMR level measurements. I added power pole connectors.

Two Way Radios were quick to ship the unit and it was packaged securely. I am very happy with them and their service.
Nissei DG-503 MAX Digital SWR and Power Meter for Analog and Digital Radios.
Review by Scott E.
Nissei DG-503 Max Digital Analog SWR and Power Meter work great pretty accurate reading easy to read display good for the money.
Overall good experience very happy with purchase
Review by W7LGR
Buy Two Way Radios were very fast getting the purchase I made to me
Large easy to read screen
Review by Ronnie
This meter is working well and is close to readings I get with other known good meters. works for digital and is easy to use no calibration steps and you can see the output clear across the room if you have old eyes...in short its a great meter.
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