The MFJ-828 Digital SWR/Wattmeter/Frequency Counter RF monitoring station is a versatile unit designed for ham radio enthusiasts. This compact and lightweight wattmeter features a back-lit LCD display and illuminated graphic display, making it easy to read during use. With an on/off switch for convenience, this unit is compatible with various brands and is equipped to monitor SWR, power, and frequency on the HF band. Perfect for use with ham radio amplifiers, transmitters, transceivers, receivers, and CB radios, this product is ideal for maintaining optimal radio performance and ensuring efficient communication. Made in the United States by MFJ, this station is a reliable tool for any ham radio setup. Key Specifications & Capabilities. Frequency Range: Continuous coverage from 1.8 MHz to 54 MHz (HF and 6-meter bands). Auto-Ranging Scales: Automatically switches between three high-resolution full-scale ranges: 25W (QRP), 250W (Mid), and 1500W (High). Measurement Metrics: Simultaneously tracks Forward Power, Reflected Power, SWR, and Frequency. Reading Modes: Features True Active circuitry to toggle between true PEP Peak or Average power modes. Peak Hold: Configurable to hold peak readings for 1, 2, or 3 seconds before automatically resetting. Dual-Display Interface: Offers immediate analog visual feedback via the cross-needle overlay, paired with exact numerical readings and configurable bar graphs on a 2-line, 16-character backlit LCD. Amplifier Protection (SWR Alarm): Features an internal relay control loop (with normally open/normally closed RCA jacks on the back panel). It will automatically take your amplifier offline or trigger a visual/audible alarm if the SWR rises above a user-defined threshold (adjustable from 1.5 to 3.0). Transmit Frequency Counter: Displays your active transmission frequency in continuous carrier mode, making it an ideal diagnostic accessory for pairing with older or analog rigs lacking a digital layout. Upgradable Firmware: Includes a built-in bootloader and an RS-232 serial port on the rear chassis for field-installing firmware revisions directly from MFJ Enterprises. Intelligent Sleep Mode: Automatically shuts down the micro-controller clock when no transmit signal is present. This completely eliminates spurious signal generation or electronic noise bleed while you are listening to weak signals.