RFS is supporting American Tower at broadcast sites in major U.S. cities, including Atlanta, Boston, Chicago, Dallas and New York City by provided broadcast equipment, such as multi-station transmission systems and multi-channel antennas that feature RFS’ patented Variable Polarization Technology.
For example, in Boston, RFS is providing American Tower with a PEP70E top-mounted broadband UHF panel antenna that allows multiple broadcasters to share the antenna, but individually use different polarization ratios. The 14-level antenna includes 70 panels with more than 200 kW of input power capacity and can broadcast horizontal, elliptical or circular polarization.
Polarization ratios can be easily adjusted with a simple phase change in the high-power multi-station channel combiners, which are used throughout these sites. Equally impressive is a truly broadband elliptically polarized SBB series antenna with fixed 25% +/- 5 percent vertically polarized component from 470 MHz to 700 MHz with a total input power up to 100 kW, installed as an auxiliary at the Norfolk site.