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PstRotatorAz 14.96, released by Romanian developer YO3DMU, is a lightweight Windows utility engineered to provide precise, automated azimuth-only antenna rotation for HF operators who use rotators from Yaesu, Hy-Gain, Prosistel, Green Heron, M2, ERC, AlfaSpid, and similar RS-232 or TCP/IP-controlled units. The program integrates native support for SteppIR and UltraBeam frequency-interlocked antennas, automatically commanding the rotator to follow the azimuth value broadcast by those tuners while preventing dangerous overlaps, and can simultaneously drive up to sixteen external relay boards (K1EL, CW Type, I2C expanders) to switch additional antennas, stacks, or amplifiers. Typical deployments include swinging a monobander toward the calculated short-path or long-path heading during DX pile-ups, rotating a SteppIR BigIR while net-control on 40 m, or letting the software sync a two-tower contest station so that the second antenna always points 180° opposite the first. A single-window interface displays current compass heading, target bearing, and rotator controller status; mouse, keyboard, or UDP/XML commands from logging apps such as N1MM, DXLab, Logger32, or Ham Radio Deluxe can update the target in real time, and a built-in scheduler can store and recall twelve preset directions. Rotator speed, braking delay, and overlap protection limits are adjustable per unit, while diagnostic logs and a test panel simplify field troubleshooting. Because the executable is portable and uses only COM or network sockets, it is frequently copied onto a contest laptop or low-power mini-PC strapped to the tower base, allowing azimuth control without installing larger suite packages. PstRotatorAz is available for free on get.nero.com, with downloads served through trusted Windows package sources such as winget, always supplying the newest release and enabling batch installation alongside other applications.
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