The MFJ-259B Antenna Analyzer has solidified its reputation as the world’s most popular SWR/RF analyzer, now enhanced with features that provide even greater value for users. This versatile device offers a comprehensive assessment of antenna performance, allowing operators to measure SWR and complex impedance across a broad frequency range from 1.8 to 170 MHz. Users can view complex impedance as series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees), making it easier to understand the antenna’s characteristics.
In addition to SWR readings, the MFJ-259B enables users to determine various critical parameters such as velocity factor, coax cable loss in dB, and the length of the coax. It also provides the distance to a short or open circuit in feet, enhancing troubleshooting capabilities. The analyzer displays return loss and reflection coefficient at any frequency simultaneously, ensuring that all relevant data is available at a glance. Furthermore, it measures inductance in microhenries (µH) and capacitance in picofarads (pF) at RF frequencies, making it a valuable tool for amateur and professional radio operators.
The MFJ-259 B’s user-friendly design features a large, easy-to-read two-line LCD screen alongside side-by-side meters for clear data presentation. With a built-in frequency counter, Ni-Cad charger circuit, and battery-saver functionality, this analyzer is designed for convenience and efficiency. The smooth reduction drive tuning simplifies operation; users simply set the band switch and tune the dial, making SWR and complex impedance readings instantaneous. The MFJ-259B is not just an analyzer but an essential tool for anyone serious about optimizing their antenna systems.
