Recommendations

Where there is a link, that item is available for downloading. Where no link exists, please contact John Zuzek, John.E.Zuzek@nasa.gov, for more information. Also read the description of the Resolution and Recommendation identifier format.

Recommendations

Res Number	File	Title	Effective Date
REC 4-3R3		Utilization of 2 GHz Band by Space Operation	17 September, 1998
REC 5-1R5		Use of the 8450-8500 MHz Band for Space Research, Category A	17 September, 1998
REC 6-1R5		Interference from Space-to-Space Links Between Non-Geostationary Satellites to Other Space Systems in the 2025 - 2110 and 2200 - 2290 MHz Bands	20 October, 2005
REC 6-2R1		Transponder Turnaround Frequency Ratios for Space Research, Category A	1 September, 1989
REC 7-1R5		Transponder Turnaround Frequency Ratios and Radio Frequency Channel Plans for Space Research, Category B	30 September, 2007
REC 11-1R3		Use of the Band 1670 - 1710 MHz for Meteorological Satellite Services	20 October, 2005
REC 12-2		Use of the 14.0 - 15.35 GHz and 16.6 - 17.1 GHz Bands for Space Research, Category A	25 September, 1997
REC 12-4R3		Methods for Reduction of Potential Interference between Systems in the Space Science Service in Densely Occupied Bands	17 October, 2003
REC 12-5R1		Limitations on Earth - Space Link Power Levels	15 December, 1995
REC 13-3R1		Data Relay Satellite Channel Plans for the 23 and 26 GHz Bands	15 December, 1995
REC 14-1R1		Protection of Deep-Space Research Earth Stations from Line-of-Sight Interference in the Bands 2290 - 2300 MHz, 8400 - 8450 MHz, and 31.8 - 32.3 GHz	20 October, 2005
REC 14-2R5		Use of the 37 - 38 GHz Space Research Service Allocation	22 September, 2004
REC 14-3R7		Use of the 8025 - 8400 MHz Band by Earth Exploration Satellites	20, October, 2005
REC 15-1R2		Use of the 400.15 - 401 MHz and 410 - 420 MHz Space Research Allocation for Proximity Links	17 September, 1998
REC 15-2R4		Use of the Band 25.25 - 27.5 GHz for Inter-Satellite (Data Relay Satellite and ISS Proximity Links) and Earth Exploration Satellite Service Applications	4 October, 2001
REC 18-1		Use of Bands 31.3-31.8 GHz and 36-37 GHz for EESS passive Sensing	15 September, 1999
REC 18-2		Minimum Earth Station G/T Requirements for Reception of Non-Geostationary EESS in the 8025-8400 MHz Bands	15 September, 1999
REC 21-1		Spectrum Considerations for Formation Flying Systems	4 October, 2001
REC 21-2R2		Efficient Spectrum Utilization for Space Science Services on Space-to-Earth Links; Cat. A	25 September, 2003
REC 21-3R1		Use of Sub-Carriers for Space Science Services on Space-to-Earth Links; Cat. A	17 October, 2002
REC 22-1R1		Frequency Assignment Guidelines for Communications in the Mars Region	25 September, 2003
REC 22-1R1 Annex		Table 2: Notes on Mars Local Link Frequencies Recommended in Table 1	17 October, 2002
REC 23-1		Efficient Spectrum Utilization for Space Research Service, Deep Space (Category B) in the Space-to-Earth Link	25 September, 2003
REC 23-2		Assignment of Differential One-Way Ranging Tone Frequencies for Category B Missions	25 September, 2003
REC 24-1		Frequency Assignment Guidelines for Active Remote Sensing in the Mars Region	22 September, 2004
REC 27-1 (Provisional)		Efficient Spectrum Utilization for Space Researc Service, Deep Space (Category B). in the 31.8-32.3 GHz Space-to-Earth Link	30 September, 2007
REC All		All SFCG Recommendations, combined into one zip file (MS Office format). Does not include any provisional Recommendations.