The National Oceanic and Atmospheric Administration (NOAA) is seeking a firm fixed price contract for the supply of antennas for the National Data Buoy Center at Stennis Space Center, MS. The contract will be for a base year plus four additional supply option years. The preferred model of the antenna is the ANTCOM 1.5GIR1516RR-AP-XSS-1, but the NDBC will accept direct form/fit/function equivalents that meet the specified requirements. The antenna should be a low profile ruggedized dual active GPS and Iridium antenna for battery-powered marine weather observation systems. Some key requirements include: • The antenna should have a hemispherical radiation pattern and RHCP polarization. • The antenna should have a gain of at least 4.9 dB at 90° elevation and a beam width of at least 129°. • The antenna should be able to handle a power of up to 30W and have a voltage/current of +2.8VDC to +28VDC / 30mA to 50mA. • The antenna should be made of 6061-T6 aluminum alloy base and composite radome, and have a skydrol resistant polyurethane enamel and nickel plating finish. • The antenna should be able to operate in a temperature range of -67°F to +185°F and an altitude of up to 70,000ft.