Notice Type: Special Notice

Subject: Radiosondes
The Air Force Flight Test Center (AFFTC), Edwards AFB intends to solicit and award a sole source, Firm-Fixed Price contract, under Federal Acquisition Regulation (FAR) Part 12, Acquisition of Commercial Items and FAR 13, Simplified Acquisition Procedures, to Lockheed Martin Sippican, Inc., 7 Barnabas Rd., Marion, MA 02738. Lockheed Martin is the sole manufacturer and distributor of the required supplies that is compatible with LMG6 equipment operated by the 412 OSS Weather Flight. The NAICS code is 334519.

Contractors interested in this requirement should submit a proposal/quote in response to this request and in accordance with the FAR Part 12. The Government will consider all responses received within 15 days of the publication of this notice. A determination by the Government not to compete this acquisition based upon responses to this notice is solely within the discretion of the Government. Information received will normally be considered solely for the purpose of determining whether to conduct a competitive procurement.
The following product with these specific specifications will be procured:

1. Radiosondes, P/N: 1848-611 LMS6 GPS Sondes, QTY: 180 each

Transmitter
Type: Digitally Synthesized
Frequency Range: 400 to 406 MHz
Frequency Stability, 90% Probability: In Accordance with EN302054V1.1.1
Deviation, Peak-to-Peak: 5 kHz
Emission Bandwidth: In Accordance with EN302054V1.1.1
Output Power: 63 mW (nominal)
Modulation: GFSK
Data Downlink: 4800 Baud, Digital
Operator Selectable Frequencies: Sixteen (16); Nominally 125 kHz Steps; Set by Switch.
Sampling Rate
All parameters once per second.
Power Source
Lithium battery pack; suitable for 130 minutes of operation.
Sensor Calibration
Polynomial coefficients resident in sonde EEPROM are transmitted continuously in digital data-stream.
Pressure (Derived from Differentially Corrected GPS Geometric Height Values)
Measuring Range: 1080 hPa to 3 hPa
Accuracy: Better than 0.5 hPa (rms)
Resolution: 0.1 hPa

Temperature Sensor
Type: Chip Thermistor
Range: -90oC to +60oC
Accuracy: 0.2oC (2 sigma)
0.3oC (2 sigma) in daylight above 20 kms
Response Time (63.2%, 6 m/s):
1000 hPa < 0.75 Secs
10 hPa < 8 Secs
Resolution: 0.1oC
Humidity Sensor
Type: Capacitance
Range: 0 to 100% RH;
+45oC to -60oC
Accuracy: +/-5% RH (2 sigma) up to 20 hPa
Response Time:
1000 hPa, 6 m/s, +25 oC < 1.5 Secs
1000 hPa, 6 m/s, -10 oC < 10 Secs
1000 hPa, 6 m/s, -40 oC < 50 Secs
Resolution: 1% RH
Code Correlating GPS Receiver
Number of Channels: 12
Cold Start Acquisition Time: 45 Secs (nominal)
Reacquisition Time: 0.1 Secs (nominal)
Range: 0 to 100% RH;
Dimensions: 127 x 152 x 76 (mm)
Weight 235 grams (including battery, dereeler, & cord)

Anticipated Award Date is 9 March 2011. Responses must be received no later than (NLT) 4:00 p.m., Pacific Daylight Time, 7 March 2011 to: Directorate of Contracting, AFFTC/PKE (Attn: Monika Hansing), 5 South Wolfe Avenue, Building 2800, Edwards AFB, CA 93524-1185, Fax: (661) 277-0470, or E-mail (preferred method): [email protected].
Facsimile responses are acceptable and must be received on or before the closing date. Telephone requests to be placed on a mailing list will not be honored.