58 -- DOWNSIZED DEPLOYABLE TERMINAL

Notice Date

July 23, 2001

Contracting Office

Department of the Air Force, Air Combat Command, 355 CONS, 3180 S Craycroft Rd, Davis Monthan AFB, AZ, 85707-3522

ZIP Code

85707-3522

Solicitation Number

Reference-Number-F02601-01MDDT

Response Due

August 3, 2001

Point of Contact

James McGill, Contract Specialist, Phone 520-228-2214, Fax 520-228-5284, Email james.mcgill@dm.af.mil -- James McGill, Contract Specialist, Phone 520-228-2214, Fax 520-228-5284, Email james.mcgill@dm.af.mil

Description

This is a sources sought request for information from industry. The items required will need to be provided as listed or an equal item. If providing an equal item please include all technical data with your submission. The items required are: SYSTEM OVERVIEW GENERAL DESCRIPTION The 2.4meter DDT (Downsized Deployable Terminal) system is a triband capable VSAT (Very Small Aperture terminal) designed for satellite communications over most parts of the world. The DDT system has been DSCS communications certified for use over military X-band satellites and Intelsat Std G and E1 certified for use over commercial C and Ku-band satellites. The terminal is comprised of a lightweight quick deploy 2.4m antenna with a satellite tracking system, a triband RFU (RF UNIT), A 300 WATT TRIBAND TWTA (Traveling Wave Tube Amplifier), an OM-73 compatible variable rate modem, and three feed subsystems (C, X & Ku-band). UPCONVERSION The IF transmit signal enters the RFU at a frequency of 70 MHz _+ 18 MGz. In the up converter, the signal is processed through two frequency conversions. The IF signal mixes with a variable 1st LO and a variable 2nd LO to produce an RF signal. This signal is then fed to the HPA (High Power Amplifier). In the HPA, the RF signal is amplified by the power amplifier. The RF amplifier specified output power is at the 1db gain compression point on Solid State Power amplifiers (SSPA) and saturated power on Traveling Wave tubes (TWT). DOWNCONVERSION The incoming receive signal passes through a transmit reject filter. The filtered signal then enters the appropriate Low Noise Amplifier. The signal is amplified and fed to the RF unit. In the RFU, the signal is filtered and mixed with a variable first and variable second LO to produce an IF signal at 70 _+ 18 MHz. The IF signal is amplified and filtered before transmission to the demodulator. FUNCTIONAL OPERATION OF THE EQUIPMENT PART THAT NEEDS TO BE REPLACED RF Transceiver (RFU TRIBAND (Outdoor Unit) Part #305043450100 The RFU (Radio Frequency Unit) up converts a 70 MHz IF signal from a modulator to an RF frequency in the 5.645 -- 6.425GHz, 7.900 -- 8.400 GHz or 14.000 -- 14.500 GHz. The RFU also down converts the receive RF signal of 3.400 ? 4.200 GHz, 7.250 ? 7.750 GHz or 10.95 to 12.75 GHz to an IF frequency of 70 _+ 18 MHz. The vendor must have some form of documented performance record of success within the Department of Defense and other federal agencies. All qualified companies please submit performance documentation, to include where performance was accomplished, type of performance, technical specification information, along with NAICS code, business size, and business type (8a, woman owned, veteran owned?) to the 355th Contracting Squadron, 3180 S. Craycroft Rd. Davis-Monthan AFB, AZ 85707 no later than 3 August 2001. Point of Contact is A1C Joseph Laxson (520) 228-5461.

Web Link

Visit this URL for the latest information about this (http://www.eps.gov/spg/USAF/ACC/355CONS/Reference-Number-F02601-01MDDT/listing.html)

Record

Loren Data Corp. 20010725/58SOL009.HTM (D-204 SN50S738)