The SAMWAS-200 NAVTEX Antenna System
LBA Technology introduces the SAMWAS-200 NAVTEX Antenna, a fully configured, rapidly deployable, short aperture medium wave antenna system. It uses a unique electrically short radiator and peripherals to provide reliable and cost effective omnidirectional coverage for NAVTEX and radio navigation applications.
The SAMWAS-200 system provides safety and warning information to mariners over approximately 87% of the groundwave and skywave coverage achievable from a full ¼ wave vertical antenna at 518 or 490 KHz, using a structure only 40% of that height.
The SAMWAS radiating structure uses no base insulator and is directly grounded. The grounded tower provides inherent system lightning protection, and permits easy mounting of other antennas without impact on medium wave transmission. The total system structural height is 199 feet, avoiding the need for aviation hazard lighting and marking in most situations.
The SAMWAS system components are designed for the high reliability and minimum life cycle support costs demanded by critical NAVTEX and radio navigation missions. The use of standard parts and maximum commonality in subsystems ensures lowest cost life cycle maintenance. Reliability is further enhanced by the use of galvanicaly compatible structural materials, computer confirmed mechanical and electrical safety factors, and special attention to insulator endurance under salt spray and high solar conditions. The conservative mechanical and electrical design of this system is demonstrated by hundreds of similar legacy LBA systems in medium wave broadcast use worldwide for over 30 years.
Hardware and documentation deliverables are complete and sufficient to permit installation and commissioning by any suitably equipped and qualified contractor. Alternatively, turnkey installation and commissioning services are available as an option from LBA.
The LBA Group has over 35 years experience in providing telecommunication support for infrastructure assets of the wireless telecommunications industry. Its LBA Technology unit is a leading international supplier of antenna equipment for radio broadcast stations, as well as leading edge solutions for broadcast/wireless transmission colocation. The LBA Group is based in Greenville, North Carolina.