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ARISS meeting ESTEC 2014 HAM Video

ARISS meeting ESTEC 2014 HAM Video. Emanuele D’Andria - IØELE. ARISS meeting ESTEC 2014 HAM Video. Summary Commissioning Blank Transmissions Ground Segment Chaining Groundstations Ham TV school contacts Discussion. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC.

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ARISS meeting ESTEC 2014 HAM Video

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  1. ARISS meeting ESTEC 2014HAM Video Emanuele D’Andria - IØELE

  2. ARISS meeting ESTEC 2014HAM Video Summary • Commissioning • Blank Transmissions • Ground Segment • Chaining Groundstations • Ham TV school contacts • Discussion ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  3. ARISS meeting ESTEC 2014HAM Video Commissioning • Commissioning objectives • ASI Radio Telescope Geodesy Center in Matera • TLE & First Checkup • diagram installation • operations at Matera • commissioning #1 • commissioning #2 • B. USOC report • Small ground station role ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  4. ARISS meeting ESTEC 2014HAM Video Commissioning • Commissioning objectives • check the correct operation of the HAMTV transmitter: • by measuring the RF power level received (C/No, MER) • by measuring the bit-error rate (BER) of the QPSK signal • check the four transmitting frequencies (2 nominal, 2 backup) • check the two modulation bitrates (1.3 and 2.0 MS/s) • verify the performance of ARISS antennas (#41 and #43) • check the ground stations performance • To be sure to receive even a weak signal in the case of reduced output power of the HAMTV transmitter, due for example to excessive loss in the antenna cables or in the ARISS antennas, it was decided to focus on a very high-gain receiving antenna: the ASI VLBI radiotelescope in Matera: a 20 meter reflector with a gain of 50 dB in S-band with near full tracking capabilities. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  5. ARISS meeting ESTEC 2014HAM Video Commissioning • ASI VLBI Radio Telescope Antenna Geodesy Center in Matera ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  6. ARISS meeting ESTEC 2014HAM Video Commissioning TLE & First Checkup Our first check before starting the commissioning was to verify the following items: • how accurate are the TLE data in tracking with such high-precision equipment. • the capability of the VLBI antenna, designed to point fixed stars in the sky to track fast moving objects such a satellites in low earth orbits (LEO). • how to interface our receiving system (S-band downconverter, DVB-S receivers) with the VLBI RF equipment. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  7. ARISS meeting ESTEC 2014HAM Video Commissioning TLE & First Checkup • To check the accuracy of the TLE data, we tracked the ISS with an optical telescope, which is part of the Matera center for Geodesy. Next, we checked the ability of the antenna tracking systems to follow fast moving objects such as satellites in LEO. The results have been very good (less than 0.05 deg of pointing biases applied to the telescope to center the image in the FOV). ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  8. ARISS meeting ESTEC 2014HAM Video Commissioning TLE & First Checkup • To install the S-band downconverter (Kuhne KU 25 LNC), we have taken the signal between the S-LNA (inside the Dewar) and the D/C2 (see block diagram in the next slide) with a 10 dB directional coupler. We used the X-band cable exiting from D/C1 (IF1) to send the IF signal to the receivers in the control room. IF2 remained in place for monitoring purposes. Work was done in the core of the VLBI antenna, in a chamber just below the feed assembly. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  9. ARISS meeting ESTEC 2014HAM Video Commissioning VLBI RF chain block diagram ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  10. ARISS meeting ESTEC 2014HAM Video Commissioning Matera VLBI Control Room All signals were routed in the control room. In this panoramic image, all the workstations are clearly seen. From left to right: antenna control, signal monitoring, remote ground station monitoring, set-top box (interfaced to a portable computer for streaming), one receiving computer equipped with Tutioune (the DVB-S software developed by Jean Pierre F6DZP) and the TT-3200 card, another computer equipped with the TT-1600 card. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  11. ARISS meeting ESTEC 2014HAM Video Measured RF performances during commissioning 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). G/T of Matera RX wasmeasured the daybeforeusingCassiopeia A as a calibratednoise source ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  12. ARISS meeting ESTEC 2014HAM Video Commissioning #1 Live TV reception with the TT-3200 (Matera #1) Frequency: 2369 MHz, symbol rate: 1.3 MS/s, MER: 25 dB ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  13. ARISS meeting ESTEC 2014HAM Video Commissioning #1 Signal monitoring with the FSV Spectrum Analyzer Frequency: 2369 MHz (M1), symbol rate: 1.3 MS/s, C/N> 30 dB ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  14. ARISS meeting ESTEC 2014HAM Video Commissioning #2 Live TV reception with the TT-3200 (Matera #1) Frequency: 2395 MHz, symbol rate: 2 MS/s, MER: 31 dB ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  15. ARISS meeting ESTEC 2014HAM Video Commissioning #2 Signal monitoring with the FSV Spectrum Analyzer Frequency: 2395 MHz (M2), symbol rate: 2 MS/s, C/N> 42 dB ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  16. ARISS meeting ESTEC 2014ARISS Europe - Regional Scheduling Procedures Commissioning All 3 receivers worked as expected in Matera (Italy), plus two ground stations at Casale Monferrato (Italy), and Poitiers (France) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

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

  18. ARISS meeting ESTEC 2014HAM Video Blank Transmissions • Objectives and Plan • Confirmation reports • ARISS Report • F6DZP Forum ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  19. ARISS meeting ESTEC 2014HAM Video Blank Transmissions Objectives and plan as of March 28, 2014 All Blank Transmissions performed with antenna 43 ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  20. ARISS meeting ESTEC 2014HAM Video Blank Transmissions Confirmation from • ARISS website reception reports (FSTV) • HAMTV Facebook page • VIVADATV forum ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

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

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

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

  24. ARISS meeting ESTEC 2014HAM Video Ground Segment HAM TV standard The typical Ground Station (GS) is depicted in figure 1; it mainly consists of an offset dish antenna with 1 meter diameter size, a Left Hand Circular Polarization (LHCP) feed with downconverter/preamplifier (LNB) and a Set-Top Box Receiver. All equipments are Components Off The Shelf. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  25. ARISS meeting ESTEC 2014HAM Video Ground Segment HAM TV standard Each Ground Station will operate as a receive-only (R/O) terminal i.e. the station can receive, demodulate and record data transmitted in the S-band (2360 - 2450 MHz). The antenna used for data reception consists of an offset focus system with azimuth and elevation mount; it is capable of program controlled operation, however manual capability as backup solution is foreseen as well. ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  26. ARISS meeting ESTEC 2014HAM Video Ground Segment HAM TV standard KU LNC 25 TM (HAMTV baseline configuration) Frequency range : 2350 – 2550 MHz, IF : 1433.5 – 1633.5 MHz Amplification : 40 dB http://www.kuhne-electronic.de ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  27. ARISS meeting ESTEC 2014HAM Video Ground Segment Sun noise measurement software ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

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

  29. ARISS meeting ESTEC 2014HAM Video Video contact duration for a 90 days period starting September 1st, 2010. Chained stations (and antenna diameters): Blue: (case A) Lisboa (1 m), Milano (1 m), Bucaresti (1 m), Moskva (1 m) Green: (case B) Tenerife (1m), Lisboa (1m), Milano (1m), Bucaresti (1m), Moskva (1m) Red: (case C) Lisboa (2.5m), Milano (1m), Bucaresti (1m), Moskva (2.5m) Cyan: (case D) Tenerife (2.5m), Lisboa (1m), Milano (1m), Bucaresti (1m), Moskva (2.5m) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  30. ARISS meeting ESTEC 2014HAM Video Chaining Groundstations Hand-over example (case A, C) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  31. ARISS meeting ESTEC 2014HAM Video Chaining Groundstations Hand-over example (case B, D) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  32. ARISS meeting ESTEC 2014HAM Video Chaining Groundstations location of present ground stations in Europe (range 700 Km) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

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

  34. ARISS meeting ESTEC 2014HAM Video TelebridgeGroundstations 0° elevation mask - ISS range = 2400Km (only voice link) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  35. ARISS meeting ESTEC 2014HAM Video TelebridgeGroundstations 21° elevation mask - ISS range = 1000Km (HAMTV link) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  36. ARISS meeting ESTEC 2014HAM Video • TelebridgeGroundstations + ESA/ESAC • + Warsaw + IZ7RTN (pending application) 21° elevation mask - ISS range = 1000Km (HAMTV link) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  37. ARISS meeting ESTEC 2014HAM Video TelebridgeGroundstations + ESA/ESAC + Warsaw + IZ7RTN (pending application) 21° elevation mask - ISS range = 1000Km (HAMTV link) ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  38. ARISS meeting ESTEC 2014HAM Video Ham TV school contacts Traditional, voice-only, bidirectional, half-duplex school contact HAM Radio station aboard School VHF band audio Webcast ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  39. ARISS meeting ESTEC 2014HAM Video Ham TV school contacts approx. 10 minutes audio in VHF band approx. 5 minutes video in S band NOTE: 1) VHF audio down-link acts as a backup for the school and allows ham stations within the ISS visibility footprint to receive ISS voice with a simple hardware. Hams will receive ISS voice during the whole pass. HAM Radio station aboard School NOTE: 2) Lip synchronization is guaranteed when the school listen to the “S band voice” 3) Any ham station, equipped with a DVB-S receiver similar to the one used in the school and within the ISS visibility circle, can catch the video down-link VHF band audio S band audio & video Webcast ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

  40. ARISS meeting ESTEC 2014HAM Video Ham TV school contacts approx. 10 minutes audio in VHF band approx. 10 minutes video in S band using chained ground stations linked per phone teleconference and per video teleconference (webcast) HAM TV + Telebridge Ground station HAM TV Ground station School School Ground station Phone Teleconference Webcast Internet Network ARISS International Delegates Meeting, April 3 - 5, 2014 – ESA ESTEC

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

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