Abstract: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). A microprocessor-based control system or systems may also be employed.

Abstract: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). In one embodiment, calibration of communication downlinks and communication uplinks is performed to compensate for signal strength losses in the system.

Abstract: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). In one embodiment, calibration of communication downlinks and communication uplinks is performed to compensate for signal strength losses in the system.

Abstract: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The communications can be distributed between a head end unit (HEU) that receives carrier signals from one or more service or carrier providers and converts the signals to RoF signals for distribution over optical fibers to end points, which may be remote antenna units (RAUs). A microprocessor-based control system or systems may also be employed.

Abstract: A test meter for digital CATV systems is operative to analyze digital CATV signals or channels utilizing selectable signal conditioning circuits, depending on the format of the CATV signal under test. The test meter is thus operative to analyze digital CATV signals transmitted according to various international digital standards. In one form, the signal conditioning circuits include SAW filters for particular bandwidths according to the digital signal standard of the particular CATV system. The SAW filters correspond to the bandwidths associated with a particular digital signal standard. Once the signal conditioning circuit has been selected, an output of a corresponding filter is input to a digital decoder circuit such as a QAM decoder. The QAM decoder is operative to decode all three (3) international QAM standards in accordance with ITU-T J.83 for digital signals.

Abstract: A test system determines the response of a QAM receiver in relative isolation from a communication channel of a CATV network. The system includes a test coupler to couple the output of a QAM transmitter to a QAM receiver and a controller for configuring the QAM transmitter and QAM receiver within a component to communicate with one another. The system of the present invention makes use of the QAM transmitter provided, for other purposes, in an ASIC implementing the QAM receiver. The operation of the test controller of the test system permits the QAM receiver to be tested without the need for external test equipment. The test controller provides the QAM transmitter with a data signal for modulating an identified carrier frequency for purposes of the internal test. The response of the receiver to the test signal generated by the transmitter is captured and evaluated to determine the characteristics of the receiver.