Abstract: A circuit board connection system is provided having a first circuit board having a first connector and a second circuit board having a second connector for mating with the first connector. A chassis is provided for mounting the first circuit board and the second circuit board, and when assembled, the first circuit board and the second circuit board lie parallel to a mounting surface of the chassis. At least one first alignment feature is fixed to or integrated into the first circuit board and at least one complementary alignment feature is fixed to or integrated into the second circuit board or the mounting surface of the chassis. An interaction between the first alignment feature and the complementary alignment feature forces alignment of the first connector with the second connector as the first circuit board is moved towards the second circuit board along the mounting surface of the chassis.

Abstract: A radio equipment and a method for interconnecting components in the radio equipment are disclosed. The radio equipment includes a signal processing module and a radio component positioned relative to each other for a high-speed connection using at least a first mechanical connector and a high-speed connector. The first mechanical connector includes a first part disposed on the radio component and a second part disposed on the signal processing module. The high-speed connector includes a first part disposed on the radio component and a second part disposed on the signal processing module. At least one high-speed processing capability is provided to the radio equipment using the signal processing module through the high-speed connector. The signal processing module and the radio equipment are interchangeably connected.

Abstract: A radio equipment and a method for interconnecting components in the radio equipment are disclosed. The radio equipment includes a signal processing module and a radio component positioned relative to each other for a high-speed connection using at least a first mechanical connector and a high-speed connector. The first mechanical connector includes a first part disposed on the radio component and a second part disposed on the signal processing module. The high-speed connector includes a first part disposed on the radio component and a second part disposed on the signal processing module. At least one high-speed processing capability is provided to the radio equipment using the signal processing module through the high-speed connector. The signal processing module and the radio equipment are interchangeably connected.

Abstract: An active array heat sink cooled by natural free convection is disclosed. A long extruded heat sink is partitioned into multiple, shorter zones separated by gaps having horizontal baffles. The gaps and baffles serve to act as air vents and air inlets for the convection currents. As such, the heat transfer for the overall heat sink is improved because hot convection currents are vented and replaced by cool ambient air along the length of the heat sink.

Abstract: An active array heat sink cooled by natural free convection is disclosed. A long extruded heat sink is partitioned into multiple, shorter zones separated by gaps having horizontal baffles. The gaps and baffles serve to act as air vents and air inlets for the convection currents. As such, the heat transfer for the overall heat sink is improved because hot convection currents are vented and replaced by cool ambient air along the length of the heat sink.

Abstract: An active array heat sink cooled by natural free convection is disclosed. A long extruded heat sink is partitioned into multiple, shorter zones separated by gaps having horizontal baffles. The gaps and baffles serve to act as air vents and air inlets for the convection currents. As such, the heat transfer for the overall heat sink is improved because hot convection currents are vented and replaced by cool ambient air along the length of the heat sink.

Abstract: A base station analysis system and method that may employ commercially-available mobile device platforms is disclosed. The base station analysis application enables a service technician to locate nearby base stations in the field, determine which base stations are functioning properly, and retrieve information associated with the base stations. The mobile device displays nearby base stations on a street map relative to the location of the mobile device in an embodiment. The mobile device preferably displays the spatially-varying signal strength for the active base stations to enable the service technician to locate dead spots in the coverage. The mobile device displays a reality augmented view having graphical icons which represent base stations embedded within a street-view image obtained by the mobile device camera in a preferred embodiment. When a service technician selects a base station icon, installation information describing the base station is provided.

Abstract: An active array heat sink cooled by natural free convection is disclosed. A long extruded heat sink is partitioned into multiple, shorter zones separated by gaps having horizontal baffles. The gaps and baffles serve to act as air vents and air inlets for the convection currents. As such, the heat transfer for the overall heat sink is improved because hot convection currents are vented and replaced by cool ambient air along the length of the heat sink.

Abstract: A guide 2 for supporting a device in a flow of coolant includes a deflector 4 for modifying the coolant flow. The guide include apertures 6 so that the coolant can flow over both the upper and lower faces of a device, for example a printed circuit board 24.

Abstract: A guide 2 for supporting a device in a flow of coolant includes a deflector 4 for modifying the coolant flow. Examples of the guide include apertures 6 so that the coolant can flow over both the upper and lower faces of a device, for example a printed circuit board 24.

Abstract: A cooling apparatus for cooling an electrical device 1 using a flow of coolant comprises a cooling unit 3. The cooling unit 3 is in contact with the device 1 and includes a channel 6 for transporting the coolant past the device 1. In a preferred embodiment, the sectional area of the channel 6 decreases between the inlet and the outlet of the channel 6. The velocity of the flow of coolant past the device 1 can be modified, thus improving the efficiency of cooling.

Abstract: Cooling apparatus is used to cool equipment, for example electrical equipment, using a fan. In an embodiment described, the cooling apparatus comprises a duct for communication with the fan and for transporting air past the equipment. The duct may include a diffuser for improving the air flow in the duct.

Abstract: An electromagnetic flow meter and method of operating the same. There is provided a flow measurement duct, a magnetic circuit including pole pieces for generating a magnetic field in fluid flowing in a direction in the duct across the direction of flow, and an electrical circuit including at least one sensing electrode for measuring a voltage thereby induced in the fluid to provide an output indicative of the flow. The method comprises measuring a series of pairs of outputs of the electrical circuit, each pair of outputs comprising an output when the magnetic field is present and an output when the magnetic field is absent, and determining from the measured series of pairs of outputs whether fluid is present or absent in the duct.