Systems and methods for operating a motorized system. The methods comprise by a circuit: receiving a first position signal generated by a gimbal resolver coupled to a load, a second position signal generated by a first motor encoder coupled to a shaft of a first motor, and a third position signal generated by a second motor encoder coupled to a shaft of a second motor; converting the second and third position signals into a velocity signal specifying a scaled velocity of the load; converting the velocity signal into a fourth position signal specifying a position of the load; combining the first position signal and the fourth position signal to generate a fifth position signal representing a stable position of the load; and using the fifth position signal to control operations of the first and second motors.

A re-configurable distributed antenna system that includes a plurality of base transceiver stations and a plurality of remote antenna units is provided. The plurality of the remote antenna units are configured and arranged to provide communication services for a plurality of coverage zones. A signal router selectively routes signal communication paths between a plurality of base transceiver stations and the plurality of the remote antenna units. At least one memory is configured to store routing scenarios and distributed antenna system configurations associated with the stored routing scenarios. Moreover, at least one controller dynamically controls the signal router to selectively route the signal communication paths between the plurality of base transceiver stations and the plurality of remote antenna units based at least in part on a then current need of communication service capacity within the plurality of coverage zones and the stored coverage routing scenarios.

A re-configurable distributed antenna system that includes a plurality of base transceiver stations and a plurality of remote antenna units is provided. The plurality of the remote antenna units are configured and arranged to provide communication services for a plurality of coverage zones. A signal router selectively routes signal communication paths between a plurality of base transceiver stations and the plurality of the remote antenna units. At least one memory is configured to store routing scenarios and distributed antenna system configurations associated with the stored routing scenarios. Moreover, at least one controller dynamically controls the signal router to selectively route the signal communication paths between the plurality of base transceiver stations and the plurality of remote antenna units based at least in part on a then current need of communication service capacity within the plurality of coverage zones and the stored coverage routing scenarios.

The solar-powered satellite dish heater is configured for use with a satellite dish. The satellite dish is an antenna that is configured to receive radio frequency transmissions from a satellite. The solar-powered satellite dish heater is a heating device that prevents an accumulation of ice from inhibiting the satellite dish from receiving the radio frequency transmissions from the satellite. The solar-powered satellite dish heater comprises the satellite dish and a heating structure. The heating structure generates heat that is transferred to the satellite dish such that any ice that has accumulated on the satellite dish will melt.

The solar-powered satellite dish heater is configured for use with a satellite dish. The satellite dish is an antenna that is configured to receive radio frequency transmissions from a satellite. The solar-powered satellite dish heater is a heating device that prevents an accumulation of ice from inhibiting the satellite dish from receiving the radio frequency transmissions from the satellite. The solar-powered satellite dish heater comprises the satellite dish and a heating structure. The heating structure generates heat that is transferred to the satellite dish such that any ice that has accumulated on the satellite dish will melt.

A radome-reflector assembly includes a generally domed reflector having a peripheral rim and a radome assembly. The radome assembly includes: an annular ring having a front wall and a side wall; a disk that fits within the ring; and an RF-compliant absorber, wherein the rim of the reflector fits within the side wall. The radome assembly further comprises a clip that engages the rim and the ring to secure the reflector to the radome assembly.

A radome-reflector assembly includes a generally domed reflector having a peripheral rim and a radome assembly. The radome assembly includes: an annular ring having a front wall and a side wall; a disk that fits within the ring; and an RF-compliant absorber, wherein the rim of the reflector fits within the side wall. The radome assembly further comprises a clip that engages the rim and the ring to secure the reflector to the radome assembly.

A parabolic antenna includes a main disc, a transmitting device, and a reflecting member. The main disc has a main surface that is arc-shaped. The transmitting device is disposed on the main disc and includes a transmitter and a reflector. The transmitter corresponds to the reflector. The reflector has a reflecting surface that is arc-shaped and corresponds to the main surface of the main disc. The reflecting member is detachably engaged with the reflecting surface of the reflector and corresponds to the transmitter. By engaging the reflecting member with the reflecting surface of the reflector or detaching the reflecting member from the reflecting surface, the parabolic antenna could form various configurations and provide different reflecting performances.

A parabolic antenna includes a main disc, a transmitting device, and a reflecting member. The main disc has a main surface that is arc-shaped. The transmitting device is disposed on the main disc and includes a transmitter and a reflector. The transmitter corresponds to the reflector. The reflector has a reflecting surface that is arc-shaped and corresponds to the main surface of the main disc. The reflecting member is detachably engaged with the reflecting surface of the reflector and corresponds to the transmitter. By engaging the reflecting member with the reflecting surface of the reflector or detaching the reflecting member from the reflecting surface, the parabolic antenna could form various configurations and provide different reflecting performances.

An antenna measurement system includes an array of antennas, an array of reflectors, and a measurement surface. The array of antennas includes a plurality of antenna elements arranged in a straight line; any two adjacent antenna elements in the above antenna elements are separated by a predetermined distance, and each of the antenna elements in the above antenna elements has a radiator and a feed point. The array of reflectors includes at least one reflector and is arranged in a width direction or a height direction, and the array of reflectors is configured to generate a reflection signal according to a signal sent by the array of antennas. An antenna to be measured is configured to perform a measurement operation on the reflection signal on the measurement surface.