MFJ 812B VHF 144-220MHz SWR/Wattmeter (Pre-Owned)

The MFJ-812B VHF SWR/Wattmeter is a compact, reliable test instrument designed for amateur radio operators working in the VHF range. Here’s a clear product-style description you can use:

MFJ-812B VHF 144–220 MHz SWR/Wattmeter

The MFJ-812B is a precision VHF SWR and power meter designed for accurate measurement of forward and reflected power in the 144–220 MHz range. Ideal for amateur radio operators, it helps ensure optimal antenna performance and safe transmitter operation.

This meter features a cross-needle design, allowing simultaneous readings of SWR and power without the need for calibration adjustments. With power ranges of 30W and 300W, it accommodates both low-power and high-power VHF applications.

Built with a durable, compact enclosure, the MFJ-812B is suitable for both base station and portable use. Standard SO-239 connectors provide easy integration into most coaxial setups.

Key Features:

• Frequency range: 144–220 MHz (VHF)
• Cross-needle meter for instant SWR and power readings
• Power ranges: 30W / 300W
• Measures forward and reflected power
• No calibration required for SWR readings
• Compact, rugged design
• SO-239 connectors for universal compatibility

Applications:
Perfect for tuning antennas, checking transmission line efficiency, and monitoring transmitter output in VHF amateur radio systems.