The ARP-90 Polarization Rotator was designed to provide from 0° to 90° of antenna feed rotation that enables changing the polarization from Horizontal to Vertical or any location in between.
Designed for reliable operation in outdoor environments, the ARP-90 is normally mounted to the reflector by three spars, on 120° spacing in such a way that the focal point of the feed is matched to the focal point of the reflector.
Control of the ARP-90 is easily managed by any of the ACU-3C Series Antenna Controllers, shown in the photo below. The separate controller can be rack mounted remotely from the ARP-90 to facilitate integration with customers system.

When not integrated with AEC-60C El/Az Positioner the ARP-90 can be operated from a specially configured ACU-3C Series Controller. The ACU-3C allows the ARP-90 to be controlled Locally using Front Panel controls or Remotely via Serial Interface (RS-232, RS-422 or RS-485) using simple, well defined commands.

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