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

66 -- COAXIAL SWITCH ASSEMBLY SOL MGM000803014BJ POC BJ Roberts (303) 497-3799 or Fax (303)497-3163 E-MAIL: NOAA; MASC Acquisition Management, Joyce.J.Mills@noaa.gov. The National Oceanic and Atmospheric Administration (NOAA) plans to Sole Source a purchase requirement for Coaxial Switch Assemblies with JAY-EL/DMT of Carson, California. This company helped develop and design these switches. If you have a product which meets or exceeds the JAY-EL specifications, please submit your literature to NOAA for their review. The specifications are as follows: (1) Operating Frequency: 400-500MHz; (2) V.S.W.R. (maximum): 1.20:1; (3) Insertion loss (max.): RF to Array 2: 0.2dB; RF to Array 1: 0.3dB; RF to Array 1 (via delay line): 0.45dB (doesn't include delay line loss); (4) Isolation (minimum): 35dB; (5) Actuating Voltage: 28 volts more/less 2 volts; (6) Actuating Current (max.): 225 mA each coll; (7) Impedance: 50 ohms nominal; (8) Switching Time (max.): 30 ms to any position; (9) RF Power handling: 440 Watts average, 2.5 kW peak into max V.S.W.R = 1.85:1, 3.3 kW peak into max V.S.W.R = 1.25:1; (10) Operating Mode: Failsafe with indicators (for energized states only), suppression diodes (-5v or less) break before make, cold switched; (11) Operating temperature: -40 degrees Fahrenheit to +122 degrees Fahrenheit; (12) Phase repeatability: more or less 2 degrees unit to unit same path; (13) Operating Life: 2,000,000 cycles or 2 years service life (lifetime degradation not to exceed twice specified insertion loss nor a V.S.W.R of 1.2:1) indicators 50 mA maximum; (14) Finish: Switch body: aluminum, electroless nickel plated per MIL-C-26074, Connector contact: Beryllium copper, gold plated per MIL-G-45204, Cover: aluminum, black. No RFQ package will be made available. This notice expires 2/13/98. (0034)

Loren Data Corp. http://www.ld.com (SYN# 0267 19980205\66-0003.SOL)