AM CoLoCoil^®

Front view of two CLC-MS308 CoLoCoils in tandem

The LBA CoLoCoil^® system permits trouble-free colocation of all wireless antennas on AM broadcast antenna towers – including directional arrays! With the CoLoCoil^®, most wireless installations havevirtually no effect on the host AM tower, and the AM station has no effect on wireless system coaxial cables and antennas. CoLoCoil^® modular systems are transparent to AC or DC voltages on coaxial cables. Thus, they present no problem to coaxial-powered tower top amplifiers, smart antennas, and other devices – even supporting AC and strobe tower lighting systems!

LBA CoLoCoil^® modular systems are ideal for PCS, Broadband and Cellular collocation. They feature a unique patent-pending configuration* that allows the addition of multiple coaxial cable modules. New antennas can be accommodated at any time without system redesign. Modules are factory-adjusted to minimize field set-up, and only high stability components are used to eliminate periodic readjustment. Rugged coaxial connectors used at the input and output are the only RF path connections used, virtually eliminating intermodulation. RF path reliability and performance is that of the coaxial cable alone! Each coaxial path is sweep tested and measured for insertion loss before shipment and the documentation furnished to the user.

All modular CoLoCoils^® are rated to work with AM RF voltages typical on AM towers of 10,000 watts or less. Custom CoLoCoil^® systems are available for all AM power levels. Custom CoLoCoils^® accommodate high powerlevels, special configurations and performance. Even non-coaxial cables, such as for active antennas and tower lighting, can be incorporated in custom CoLoCoil^® co-location modules.

CoLoCoil^® modules are optionally equipped with a unique isolation and safety monitoring system. Front panel indicators permit instant visualization of isolation circuit status and RF presence. Alarm connections are provided for interface with site status and interlock systems.

For safety of user personnel, CoLoCoil^® modules are designed so that no high RF voltages are accessible. A highly effective RF grounding system eliminates the AM "hot cabinet" problem. Additional features of the CoLoCoil^® system include color-coding of all coaxial input/outputs and numbering for ready circuit identification and user inventory. A direct DC static ground and rugged spark gap provide lightning protection.

Quick Specs for Standard Models

• The CLC-MS308 CoLoCoil^® incorporates three coaxial RF paths with 1900 MHz insertion loss under 2 dB, VSWR under 1.3/1, and power rating of 1200 watts. Typically used in PCS, Broadband, Cellular and ESMR applications, this system is normally equipped with 7/16 DIN connectors. The CLC-MS308 CoLoCoil^® module is the same size as the CLC-MS605, and incorporates seamlessly into the master module system. Picture and Specifications for the CLC-MS308 CoLoCoil^®
• The CLC-MS605 CoLoCoil^® incorporates six coaxial RF paths with 800 MHz insertion loss under 2 dB, VSWR under 1.3/1, and power rating of 800 watts. Typically used in Paging, Public Safety, Cellular and ESMR applications, this system is also usable at PCS and broadband frequencies. Modules are normally equipped with 7/16 DIN connectors. The CLC-MS605 CoLoCoil^® module is the same size as the CLC-MS308, and incorporates seamlessly into the master module system. Picture and Specifications for the CLC-MS605 CoLoCoil^®
• The CLC-SE116 CoLoCoil^® module is also available, incorporating one high power RF path. Typically used for high power Paging and broadcast FM and TV, at 900 MHz this module is rated to 4500 watts, with insertion loss under 1 dB and VSWR below 1.3/1. Modules are normally equipped with 1 5/8 EIA connectors. It is a stand alone module. Picture and Specifications for the CLC-SE116 CoLoCoil^®

*Patent Pending