1. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Ground Segment HAM TV standard The effects of the off-Nadir orientation of on-board ARISS-41 and ARISS-43 antennas

2. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC #43 #41

3. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

4. #43 #41 ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

5. Effects of the onboard antenna Off-Nadir Angle for a pass with Max Elevation = 64° QEF threshold Off-Nadir angle = 9° (#43) SR = 2.0 MSym/s G/T = 2.0 dB(1/K) ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

6. Effects of the onboard antenna Off-Nadir Angle for a pass with Max Elevation = 64° 4’:51’’ AOT LOT Off-Nadir angle = 9° (#43) SR = 2.0 MSym/s G/T = 2.0 dB(1/K) ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

7. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Effects of the onboard antenna Off-Nadir Angle for a pass with Max Elevation = 64° 5’:38’’ Off-Nadir angle = 9° (#43) SR = 1.3 MSym/s G/T = 2.0 dB(1/K)

8. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Off-Nadir angle = 9° & 13° SR = 1.3 MSym/s G/T = 2.0 dB(1/K) Effects of the onboard antenna Off-Nadir Angle for a pass with Max Elevation = 64°

9. 5’:31’’ 5’:05’’ ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Off-Nadir angle = 0° & 13° SR = 1.3 MSym/s G/T = 2.0 dB(1/K) Comparison between Nadir and Off-Nadir pointing antennas: Best performances with Off-Nadir mounting, which exploites maximum gain at larger ranges. Max El.=40°

10. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Conclusions  Off-Nadir mounting increases link duration  From this point of view the 13° (#41 TBC) is the best  13° offset antenna allows 4’:31’’ @ 2.0 MSym/s and 40° pass, using a HAMTV standard station. i.e. 1.2 m, G/T=2.0 dB(1/K)  13° offset antenna allows 5’:31’’ @ 1.3 MSym/s and 40° pass, using a HAMTV standard station. i.e. 1.2 m, G/T=2.0 dB(1/K)  Higher passes allows longer duration, but impose stronger constrain on tracking (greater Az. Speed). A 64° pass allows 5’:03’’ and 5’:52’’ respectively. The effects of the off-Nadir orientation of on-board ARISS-41 and ARISS-43 antennas

11. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC G/T measurement and Rotator setup

12. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC :Product: Solar Radio Data rad.txt :Issued: 0612 UTC 05 Nov 2012 # # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # Please send comments and suggestions to SWPC.Webmaster@noaa.gov # Units: 10^-22 W/m^2/Hz # Missing Data: -1 # # Daily local noon solar radio flux values - Updated once an hour # Freq Learmonth San Vito Sag Hill Penticton Penticton Palehua Penticton MHZ 0500 UTC 1200 UTC 1700 UTC 1700 UTC 2000 UTC 2300 UTC 2300 UTC 2012 Nov 4 245 18 18 18 -1 -1 19 -1 410 36 38 37 -1 -1 34 -1 610 55 -1 54 -1 -1 57 -1 1415 78 81 74 -1 -1 78 -1 2695 87 97 88 -1 -1 87 -1 2800 -1 -1 -1 95 95 -1 95 4995 131 137 130 -1 -1 123 -1 8800 266 270 271 -1 -1 259 -1 15400 542 518 576 -1 -1 568 -1

13. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

14. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Level Chart for HAMTV

15. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC One of the first proposed examples of chained stations (from Document AMSAT Italy GSO R1.1, 13/04/ 2012)

16. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC One of the first proposed examples of chained stations (from Document AMSAT Italy GSO R1.1, 13/04/ 2012)

17. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Measured RF performances during commissioning

18. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Measured RF performances during commissioning

19. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Measured RF performances during commissioning

20. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Our model prediction: commissioning step 2, 12:44:20 UTC, Matera station. C/N =44.5 dB at 2.0 MSymb/s, Off-Nadir 9°, range 625 km, G/T=25.7 dB(1/K). Measured RF performances during commissioning G/T of Matera RX was measured the day before using Cassiopeia A as a calibrated noise source

21. ARISS meeting ESTEC 2014 HAM Video ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC Thank you