Comet CMX-400 – SWR Meter 140-525 MHz


Introducing the Comet CMX-400 – SWR Meter, a powerful and versatile tool for radio enthusiasts. With its wide frequency range of 140 – 525 MHz, this meter is perfect for VHF/UHF applications.

SKU: 48-500 Category: Tags: , , ,


Comet CMX-400 - SWR Meter 140-525 MHz The CMX-400 boasts impressive power handling capabilities, allowing up to 200 watts to be measured accurately. This ensures that you can monitor and optimize your signal without worrying about exceeding power limits.

One of the standout features of the CMX-400 is its large, clear cross-needle display. This display simultaneously shows forward (FWD) and reflected (REF) power readings, as well as the standing wave ratio (SWR). This allows for a quick and easy assessment of your signal performance.

To further enhance accuracy, the CMX-400 is equipped with a built-in low-loss sensor. This means that minimal power is lost during measurement, ensuring precise results every time. In addition to its functionality, the CMX-400 is designed with user convenience in mind. The meter features vibrant red and green illumination, making it easily readable even in low-light conditions.


  • Frequency Range: 140 ~ 525 MHz
  • Power Handling: Up to 200 watts
  • Power Ranges: 30/60/200 watts
  • Impedance: 50 Ohms
  • VSWR: 1.2 dB or less
  • Insertion Loss: 0.2 dB or less
  • Min Power for SWR Measurement: Approx. 6 watts
  • Connector: SO-239 type
  • Power Requirements for Illumination: 11 ~ 15 Volts
  • Dimensions: 120 (W) x 80 (H) x 105 (D) mm
  • Weight: Approx. 630 g

Additional information

Weight 0.8 kg