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0194-EX-CR-2018 Text Documents

MIT Lincoln Laboratory

2018-04-26ELS_208628

Experimental Low Interference HF Ionospheric Radar Sounder MIT Haystack Observatory FCC Form 422 Information 1.0 Application Purpose License Modification 2.0 Government Contract Yes 3.0 Foreign Government Use No 4.0 Research Project (comms) No 5.0 Exhibit Information (if no to 2 to 4) a. The complete program of research and experimentation proposed including description of equipment and theory of operations. b. The specific objectives to be accomplished. c. How the experimentation has a reasonable promise of contribution to the development, extension, expansion, or utilization of the radio art, or is along lines not already investigated. 6.0 Estimated Duration 24 months 7.0 Environmental Impact No 8.0 Manufacturer List transmitting equipment to be installed and if experimental so state. Manufacturer Model No No Units Experimental? Ettus Research N200 / Basic TX 1 No Minicircuits LZY-22+ 1 No Drake TV-3300-LP 1 No

MIT MIT-HAY-HF1X 1 Yes (experimental antenna) 9.0 Station Id No 10.0 Applicant Type Other 11. Foreign Government No 12. License Denied or Revoked No 13. Owner and Operator Yes 14. Contact Information Frank Lind Research Engineer 617-715-5561 flind@haystack.mit.edu 15. Drug Abuse Certification Question Yes 16. Station Location Information City : Westford State : MA Latitude : 42.6235 N Longitude : -71.486459 W Mobile : No Street : Millstone Hill Road County : Middlesex Radius of operation : 0 km / not mobile Datum : NAD 83 Is a directional antenna used (other than radar) : No / RADAR Exhibit submitted : No Half power beam width : H-plane orientation : zenith pointing V-plane orientation : zenith pointing

Will the antenna be more than 6 meters above the ground : No Antenna tip height above ground : Ground elevation (meters) : 131 meters Distance to nearest aircraft LZ : ~ 10 km Natural formations or man made structures : None Emission Information (as licensed) Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 2000.00000000-2169.90000000 kHz FX 10.000000 W 10.000000 W P 169KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 2190.10000000-2494.90000000 kHz FX 10.000000 W 10.000000 W P 300KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 2505.10000000-2849.90000000 kHz FX 10.000000 W 10.000000 W P 344KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 3155.10000000-3399.90000000 kHz FX 10.000000 W 10.000000 W P 244KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 3500.10000000-3999.90000000 kHz FX 10.000000 W 10.000000 W P 499KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 4150.10000000-4649.90000000 kHz FX 10.000000 W 10.000000 W P 499KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 4749.90000000-4994.90000000 kHz FX 10.000000 W 10.000000 W P 244KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 5005.10000000-5449.90000000 kHz FX 10.000000 W 10.000000 W P 444KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 5730.10000000-6199.90000000 kHz FX 10.000000 W 10.000000 W P 469KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 6765.10000000-8354.90000000 kHz FX 10.000000 W 10.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 8370.10000000-8814.90000000 kHz FX 10.000000 W 10.000000 W P 444KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 9040.10000000-9994.90000000 kHz FX 10.000000 W 10.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 10100.10000000-11174.90000000 kHz FX 10.000000 W 10.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 11400.10000000-11599.90000000 kHz FX 10.000000 W 10.000000 W P 199KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 12100.10000000-13199.90000000 kHz FX 10.000000 W 10.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 13410.10000000-14989.90000000 kHz FX 10.000000 W 10.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 15100.10000000-17899.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 18030.10000000-19679.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 19800.10000000-19989.90000000 kHz FX 30.000000 W 30.000000 W P 189KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 20010.10000000-21923.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating

Signal New 22000.10000000-23199.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 23350.10000000-24989.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 25010.10000000-25549.90000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal New 25670.10000000-29999.00000000 kHz FX 30.000000 W 30.000000 W P 500KW0W 400 Exhibit 1 QUESTION 4: STATEMENT REGARDING GOVERNMENT CONTRACT The proposed experiment supports work being sponsored under the program entitled “Geospace Facilities Program” for the National Science Foundtion under NSF Award Number AGS-1242204. The program operates scientific facilities for study of the ionosphere and near space environment including radar and radio facilities. The program includes technology development efforts to implement next generation capabilities for study of the ionosphere and space environment. Exhibit 2 QUESTION 12: STATEMENT OF APPLICANT CLASSIFICATION MIT Lincoln Laboratory is designated a Department of Defense (DoD) Federally Funded Research and Development Center (FFRDC) and a DoD Research and Development Laboratory. MIT Lincoln Laboratory is sponsored by the Under Secretary of Defense for Acquisition, Technology & Logistics and is administered by the Massachusetts Institute of Technology. Response to FCC 41834 Dear Mr. Ghaffari, We expected to have to narrow the application but wanted some guidance on what would be allowed. The local ionospheric sounder covers a similar frequency range but with the following exclusion bands. For example, from their license : "The following bands, all in KHz, are excluded 2175-2190, 2495- 2505, 2850-3155, 3400-3500, 4000-4150, 4650-4750, 4995-5005, 5450-5730, 6200-6765, 8355-8370, 8815-9040, 9995-10100, 11175-11400, 13200-13410, 14990-15100, and 17900-18030". We are requesting coverage to somewhat higher top frequency although our experimental waveforms should be significantly less interfering than the sounder. Measurement of the ionosphere requires some coverage of a broad range of frequencies due to the nature of the ionosphere. Existing systems use highly interfering waveforms and we hope to demonstrate a system which causes far fewer issues. Is the exclusion approach acceptable for our request? A possible exclusion list for our request would be (kHz) : 2170-2190 (maritime distress), 2495-2505 (time freq), 2850-3155 (aviation), 3400-3500 (aviation), 4000-4150 (aviation), 4650-4750 (aviation), 4995-5005 (time freq), 5450-5730 (aviation), 6200-6765 (maritime / aviation), 8355-8370 (aviation), 8815-9040 (aviation), 9995-10100 (time freq), 11175-

11400 (aviation), 11600-12100, 13200-13410 (aviation / radio astronomy), 14990-15100 (time freq / aviation), 17900-18030 (aviation), 19680-19800, 19990-20010 (time freq), 21924-22000 (aviation), 23200-23350 (aviation), 22499 – 25010 (time freq), and 25550-25670 (radio astronomy) Can you provide additional guidance on the acceptability criteria for the exclusion list? Thanks, Frank Lind


Document Created: 2018-04-26 10:09:57
Document Modified: 2018-04-26 10:09:57
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