MODIFICATION
66 -- Refurbish Existing Anechoic Chamber
- Notice Date
- 6/1/2007
- Notice Type
- Modification
- NAICS
- 334516
— Analytical Laboratory Instrument Manufacturing
- Contracting Office
- Department of the Navy, Office of Naval Research, Naval Research Laboratory, 4555 Overlook Ave. S.W., Washington, DC, 20375, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- N00173-07-R-TB05
- Response Due
- 6/11/2007
- Archive Date
- 8/30/2008
- Description
- The purpose of this amendment is to provide answers to questions submitted from a potential offeror. Referenced drawings and pictures can be found at: http://heron.nrl.navy.mil/contracts/rfp/07tb05.htm Q-1. How close to the sidewalls, floor, and ceiling the source antenna is when it is at its maximum travel? A-1. The source antenna can be moved in a square area of 18 inches wide x 12 inches high located on the center line of the back wall of the chamber. See the Chamber Drawing for dimensions. The source antennas are shown in the Source Antenna picture. Q-2. How close to the transmit wall is the moving horn assembly? A-2. Approximately 14 inches Q-3. Where are the doors located in the facility? A-3. See the chamber drawing for door dimensions and location. Picture of door is shown in the Chamber Door picture. Q-4. Is there an existing drawing or sketch of the facility? A-4. See the Chamber Drawing. Q-5. Where is the chamber located? First floor? A-5. The chamber is located on the first floor of Building 210 at the Naval Research Laboratory, Washington, DC. The diagram of Bldg 210 shows where the chamber is located. Q-6. I think the "2" is a "-" which puts the chamber performance at - 40 dB @ 4-6- Ghz, -45 dB @ 6- 18 Ghz, and -50 dB @ 18 - 35 Ghz. Is this correct? A-6. We cannot see the typo that you are referring to; however, the information is restated as follows: The quiet zone reflectivity is: 4-6 GHz greater than or equal to 40 db 6-18 GHz greater than or equal to 45 db 18-36 GHz greater than or equal to 50 db Q-7. The chamber is too small to allow for a 6ft diameter QZ. The chamber would have to be 18ft x 18ft in cross section to allow a 6ft diameter QZ. The 12ft x 12ft dimension will allow a 4ft diameter QZ maximum. Would a smaller quiet zone be acceptable? A-7. Offerors should propose based on the best capability that can be done with the information provided in the solicitation. Q-8. What type of RF shielded Enclosure is currently being utilized for the chamber? Who manufactured it? A-8. Our best information indicates it is a Boeing chamber. However this cannot be verified. It was built about 27 years ago. Q-9. Will any RF attenuation testing and verification be needed for the project? A-9. The specification states: Testing of the quiet zone should be included in the chamber refurbishment. All other terms and conditions of the original combined synopsis/solicitation remain unchanged.
- Place of Performance
- Address: Naval Research Laboratory, 4555 Overlook Ave SW, Washington DC
- Zip Code: 20375-5000
- Country: UNITED STATES
- Zip Code: 20375-5000
- Record
- SN01308763-W 20070603/070604110252 (fbodaily.com)
- Source
-
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