The MFJ-828 digital SWR/Wattmeter/Frequency Counter is a versatile device that handles up to 1500 watts. It features three high-resolution ranges covering frequencies from 1.8 to 54 MHz, allowing for accurate measurements. The digital analogue displays simultaneously the actual peak or average forward and reflected watts, SWR, and frequency. The peak Hold feature freezes the highest forward power displayed bar segment for a set duration, aiding in tuning antenna tuners, amplifiers, and transmitters.

One of the MFJ-828's standout features is the exclusive Amplifier Bypass Control, which safeguards your amplifier by disconnecting it if the SWR exceeds a user-defined limit. The device also includes a relay connector that switches when the SWR surpasses the set threshold. The 2-line, 16-character backlit LCD provides clear visibility of all information, complemented by a lighted cross-needle SWR/wattmeter for easy monitoring.

Additionally, the MFJ-828 offers a range of functionalities, such as adjustable alarm SWR settings, auto-ranging bar meters for SWR, forward and reflected power, peak or average power mode selection, a built-in frequency counter, and a built-in bootloader for firmware upgrades. When idle, the device enters a sleep mode to prevent spurious signals, demonstrating its attention to detail and user-friendly design.