The Space and Naval Warfare SystemsCenter (SPAWARSYSCEN) is soliciting information from potential sources to provide: Tactical Radio Frequency (RF) Direction Finding System. The SPAWARSYSCEN Charleston is seeking information on prototype tactical direction finding (DF) systems. Concept is a system that shall passively determine a line of bearing (LOB) to a radio frequency (RF) energy source in the 20 MHz to 3 GHz range. Supplier shall be able to provide sound design concepts for the DF capability including the following requirements. DF System: 1. The system shall withstand operating temperatures from 0C to +50C. 2. The system shall withstand non-operating temperatures from - 40C to +55C. 3. The system shall withstand non-condensing humidity from 5 % to 95%. 4. The system shall operate from sea level to 15,000 feet. 5. The system shall operate with shocks to 2.5g, 11ms, sine. 6. The system shall withstand non-operating shocks to 10g, 11ms, sine. 7. The system shall withstand operating vibrations up to 2 grms, 5- 500 Hz random. 8. The DF system shall support a DC power from a range of 9 36 volts. 9. The DF system shall provide RMS accuracy not exceeding 6 for a 1 second duration signal at any one frequency. 10. The DF system shall achieve specified accuracy when the field strength is 10V/m or greater. 11. The system shall be resistant to externally generated radio frequency interference (RFI) IAW with MIL-STD 461E, tests CE102, CE106, CS101, CS103, CS114, CS115, CS116, RE102, and RS103. 12. The direction finding system shall be reconfigurable to minimize angle error over a preferred frequency range 13. The direction finding system shall have a profile that is concealable or can be camouflaged. 14. The DF system weight shall not exceed 20 lbs, exclusive of mounting apparatus, masts or power source. 15. The DF system power requirement shall not exceed 15 watts when fully operational. 16. The DF system shall support configuration and data acquisition with a laptop computer via a TCP/IP connection. 17. The DF system shall support configuration and data acquisition via an RS-232C and/or USB interface. 18. The DF system shall be able to initiate a DF measurement within 100 ms from an external tip-off. 19. The DF system shall provide listen through capability simultaneously with DF measurements. 20. The DF system shall include an electronic compass for orientation calibration. 21. The DF system shall include GPS location capability and time synchronization. Antenna: 22. Energy sensing device weight shall not exceed 17 pounds. 23. Antenna size shall not exceed 15.0 inches in diameter and 6.0 inches in height. 24. The antenna size shall not exceed 2 cu ft in a cylindrical volume Receiver: 25. The DF receiver subsystem shall support a scan rate of at least 40 channels per second. 26. The DF receiver subsystem shall support CW, SSB, FM and AM signal types 27. The DF receiver subsystem shall be capable of hosting alternative signal types with the primary focus on simple signals and an objective to include digital modulated signals. 28. The DF receiver subsystem shall support bandwidths of 0.5, 3, 6, 15, 50, 200 kHz 29. The DF subsystem shall support a signal dynamic range of 75 dB or more. Processor: 30. The DF processor subsystem shall be able to integrate separate measurements, up to at least 30, for enhanced accuracy. 31. The DF subsystem shall provide internal storage for 100 lines- of-bearings or more with time stamps. 32. The DF subsystem measurements shall be formatted to support geolocation with measurement from additional DF subsystems. 33. The DF subsystem shall provide Built-in-Test (BIT) to the card or interface level. It is anticipated that a solicitation will be issued for a commercial type contract under the test procedures of FAR Part 13.5. The applicable NAICS code is 334511 with a size standard of 750 employees. Firms are invited to submit documentations (any literature, brochures, and references) necessary to support that they possess the required capabilities necessary to meet or exceed the stated requirements. There is a five-page limitation for all data submitted. Responses must include the following: (1) name and address of firm; (2) size of business, including: average annual revenue for past three years and number of employees; (3) ownership (Including Country of Ownership), including whether: Large, Small, Small Disadvantaged, 8(a), Woman-owned, HUBZONE, Veteran-Owned and/or Service-disabled- Veteran-Owned Business and Central contractor Registration (CCR) information (4) number of years in business (6) DUNS number (7) Product literature in PDF format that identifies the ability to meet the requirements listed above or identify proposed unit that meets all requirements listed above. Responses shall be submitted via e-mail to SPAWARSYSCEN Charleston, Diane Kobs, Contract Negotiator, at [email protected]. This market survey closes 5 SEP 2008. NOTE: The E-Commerce website will be down for maintenance from 8:00 pm on Thursday, 28 August 2008 through 11:00 am on Tuesday, 02 September 2008. Please respond before or after the above time.

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