790-880/ 870-960MHz Dual Band Dual Slant Polarized Remote Electrical Downtilt(RET) Panel Base Station Dual multi band antenna

Cross Polarized - X-Pol

This features two independent antennas with cross polarization.

This feature doubles the wireless capacity over the same channels.

The antenna is fed via two N-Female ports, one for +45° polarized and one for -45° polarized signals.

This feature makes these antennas ideal for polarization diversity systems.

Remote Electrial Tilt (RET) Components:

3G mobile systems based on CDMA technology have the "breathing effort" which requires more frequent adjustment of the antenna tilt angle than that of the 2G systems, to meet the periodic variance of the traffic.

Ameison has provided the full series of the Remote Electrical Tilt (RET) solutions, including the RET antennas, Antenna Control Unit (ACU), Portable Control Unit (PCU), Smart Bias Tee (SBT) and control cables, etc. They are fully interoperationabe with AISG V2.0 compliant RRU and Node-B, etc.

The tilt angle of the antenna can be accurately checked and adjusted remotely from the OMC center without climbing up the tower and shutting down the RF power, greatly reducing the workload of the network optimization.

Remote Electrical Tilt (RET) antenna systems are designed so that wireless providers can make adjustments remotely to their antenna systems.

The Antenna Interface Standards Group (AISG) has created specifications for the control interface for these types of systems.

Tips:Remote Control Unit(RCU) and AISG 2.0 connector 50M or longer 141 RET control cable can be matched if needed, manual adjustment or optional ACU for RET control.

RET antenna with motor and clutch assembly that is operative to mechanically disengage the DC motor and drive unit (also called the gear-motor unit) from the phase shifter adjustment shaft during a manual tilt operation.

Disengaging the gear-motor unit removes the drag of the motor and the high gear ratio gear box from the phase shifter control rod making it easier to manually turn the phase shifter control knob.

In addition, the clutch disengages the gear-motor without disengaging the position detector from the phase shifter control rod so that position calibration is not lost during manual tilt adjustment.

When the manual tilt operation is completed, the mechanical tilt clutch enables the gear-motor unit to be reliably re-engaged with the phase shifter control rod for motorized electrical tilt operation without having to re-calibrate the position detector.

With our RET system, operators can optimize their beam through tighter RF containment, precise pattern control, intermodulation suppression and real-time flexibility.

Our RET system enables you to make antenna adjustments from the office without costly site visits, tower climbs or network downtime.

Because you can improve network optimization in minutes — and in any weather — you can deliver better call quality and enjoy a higher level of customer satisfaction. 

--Respond quickly to changing traffic needs

--Experience higher tilt possibility compared to mechanical tilt

--Reduces human error with accurate mechanical control

--No specialized manpower or equipment needed

--Ideal for isolated or difficult-to-access sites

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