DOC; Mountain Administrative Support Center; Acquisition Management Division; 325 Broadway MC3; Boulder, CO

58 -- OMINI DIRECTIONAL ANTENNA SOL NT9100070074MB POC Michelle A. Bernal, Purchasing Agent, (303) 497-3983; FAX: (303)497-3163 E-MAIL: NOAA; MASC Acquisition Management, Michelle.A.Bernal@noaa.gov. The National Telecommunications and Information Administration (NTIA) requires an Omini Directional Antenna. Specifications as follows: 1) Antenna shall have a minimum frequency range of 20 MHz and a maximum frequency range of 1000 MHz or greater. 2) Polarization of this antenna shall be vertical. 3) Antenna shall have a nominal output impedance of 50 ohms. 4) Antenna shall be omni-directional in the horizontal plane. 5) Antenna shall not require a power supply and shall be passive without any amplifiers. 6) Antenna shall have operating temperature ranges at a minimum of -55 degrees C to at least a maximum of 85 degrees C while maintaining calibration and data integrity. Antenna shall operate in rain or snow without degradation of the electrical specifications. 7) Antenna shall be equipped with a radome surrounding the antenna. 8) Antenna shall have a maximum weight of 16lbs. 9) Antenna shall be mountable on a flat horizontal plate or on a vertical pipe which has a maximum diameter of 6 inches base to 63mm at the top. 10) Antenna shall not exceed maximum dimensions of 17" x 17" x 17". 11) Antenna shall be made of durable and light weight material. 12) The radio's frequency connector shall be a type N. 13) The antenna shall have a minimum gain of -37 dBi. 14) The antenna shall be calibrated over 20 MHz to 1000 MHz in accordance with mil std. 45662a. 15) Sail area shall not exceed 260 sq. feet. There is no formal RFQ. Interested sources may submit a bid either by mail or fax no later than May 5, 1997. See Note 1.**** (0108)

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