Avair AV–400 VSWR Power Meter


Introducing the Avair AV–400 VSWR Power Meter, the perfect device for VHF and UHF operators. Designed with precision and reliability in mind, this power meter offers exceptional performance and accuracy to ensure optimal results.


Featuring a high power handling capability of up to 400W, the Avair AV–400 is built to withstand heavy usage and provide accurate measurements in a variety of scenarios. With its impressive accuracy ratings, you can trust this power meter to deliver reliable readings, with 5% accuracy on 5W, 7.5% accuracy on 20W, 10% accuracy on 200W, and 12.5% accuracy on 400W.

The Avair AV–400 VSWR Power Meter boasts a large, clear meter display, making it incredibly easy to read and interpret the results. This means you can quickly assess the power levels and make informed decisions based on accurate data.

Equipped with a frequency range of 140 – 525 MHz, this power meter ensures excellent coverage for a wide range of applications. The power measure range spans from 5W to 400W, catering to various power needs. The impedance of 50 Ω guarantees compatibility with most devices, providing seamless integration into your existing setup.

With a minimum power input requirement of just 0.5W, the Avair AV–400 VSWR Power Meter can accurately measure even the slightest power signals. This level of sensitivity allows for precise power analysis, ensuring you have a comprehensive understanding of your system’s performance.

Crafted with quality in mind, this power meter exhibits minimal input loss, measuring at only 0.2 dB (1.8 ~ 160 MHz), (140 ~ 525 MHz), and 0.3 dB (430 – 1300 MHz). These low loss values demonstrate the efficiency and reliability of the Avair AV–400, resulting in accurate and consistent measurements.

With dimensions of 155 x 63 x 103 mm and weighing only 720 g, this power meter is compact and lightweight, making it highly portable. Its small form factor allows for easy placement and convenient transportation to various locations.

In summary, the Avair AV–400 VSWR Power Meter is a top-of-the-line device, offering exceptional accuracy, durability, and portability. Whether you are a VHF or UHF operator, this power meter will exceed your expectations and help you achieve optimal performance in your power measurement needs.


  • Frequency Range: 140 – 525 MHz
  • Power Measure Range: 5W, 20W, 200W, 400W
  • Impedance: 50 Ω
  • Minimum Power Input: 0.5W
  • Precision: 5W range ± 5%, 20W range ± 7.5%, 200W range ± 10%, 400W range ± 12.5%
  • Input Loss: 0.2 dB (1.8 ~ 160 MHz), (140 ~ 525 MHz), 0.3 dB (430 – 1300 MHz)
  • Size: 155 x 63 x 103 mm
  • Weight: 720 g

Additional information

Weight 0.9 kg