Abstract: A device for holding a laser measuring device for the vertical measurement of features of a subterranean structure. The device attaches to the opening of the structure by the use of extendable legs and magnets and holds a laser measuring tool with a mounting plate. The plate can slide along the device for the best line of site to the feature being measured.

Abstract: A service protection enclosure (SPE) for a cellular telephone or other wireless telecommunications transceiver site is disclosed. The site has at least one antenna (3) which transceives communication signals, radio equipment for receiving and sending radio signals from and to the antenna, transmission means (37, 39) for connecting the radio equipment and the antenna so as to carry the signals therebetween, AC power service lines (47) for providing power to the site, and telephone lines (48, and/or 115) for connecting the site with a telephone or other communication network. The services protection enclosure comprises a cabinet (35) adapted to be secured to a suitable foundation (29), the cabinet having side walls (55, 57), a top (53), and at least one door (61 or 63) providing access to the interior of the cabinet. The cabinet houses an AC power distribution panel (101) and receives the AC service lines (47), the telephone lines (48), and the RF transmission means (37, 39).

Abstract: The present invention relates to an antenna module for installation on a wireless telecommunications tower at a transceiver site. The antenna module comprises a frame adapted to be installed on the upper end of the tower, containing a means for mounting, and adjusting the alignment of, one or more panel antennas for optimal signal transmission and reception. A radio frequency energy transparent cover surrounds the antenna module, extending height-wise of the frame, enclosing it, the mounting means, and the panel antennas mounted thereon, thereby reducing wind loading on the antenna module.

Abstract: An RF repeater arrangement for use in a wireless telephone system has a number of handset interface parts, each provided with a transmit section for transmitting a signal to a wireless telephone handset, a receive section for receiving an off-air signal from the wireless handset and an energy detector for detecting the energy level of the received off-air signal and providing a control signal corresponding to such energy level. The control signal is employed for inhibiting the transmit section when the energy level of the received off-air signal is below a predetermined value. Thus, each handset interface part can determine when a channel is occupied and avoid transmission on that channel, so that only the geographic area around the occupied handset is subject to interference from the occupied channel.

Abstract: A service protection enclosure (SPE) for a cellular telephone or other wireless telecommunications transceiver site is disclosed. The site has at least one antenna (3) which transceives communication signals, radio equipment for receiving and sending radio signals from and to the antenna, transmission means (37, 39) for connecting the radio equipment and the antenna so as to carry the signals therebetween, AC power service lines (47) for providing power to the site, and telephone lines (48, and/or 115) for connecting the site with a telephone or other communication network. The services protection enclosure comprises a cabinet (35) adapted to be secured to a suitable foundation (29), the cabinet having side walls (55, 57), a top (53), and at least one door (61 or 63) providing access to the interior of the cabinet. The cabinet houses an AC power distribution panel (101) and receives the AC service lines (47), the telephone lines (48), and the RF transmission means (37, 39).

Abstract: A modular antenna driver is provided for extending the area of coverage between a base station connected to a CATV cable system and a plurality of cordless handsets. The driver includes a duplex circuit connected to the CATV cable and tuned for upstream and downstream communications with the base station over the cable. A core circuit connected to the duplex circuit includes circuitry interconnected to perform and of sufficient bandwidth to perform communication functions common to at least two different handset types. At least one removable module is selectively insertable into the driver and includes circuitry interconnected to perform communication functions characteristic of one handset type wherein one such module will may be replaced by a second module for a different second handset type. In the alternative, multiple removable modules may be simultaneously employed in the driver to permit simultaneous compatibility with a plurality of handset types.