SYSTEM DESCRIPTION AND INSTALLATION MANUAL
HS--600 High Speed Data System
23--20--31
30 May 2002
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Page 1--4
D. System Performance
(1) Currently, the numbers of simultaneous aeronautical voice and M4 data channels can
only be obtained from theoretical calculations. Using the assumptions given in
Table 1-4, the calculations are given in Table 1-5. The calculations for the total
number of calls are given in Table 1-6 thru Table 1-9.
Table 1-4. Assumptions
Item
dB
Watts
Gain cell
12 dB
R/T power (10.5 Kbps assumed)
20.4 dBW
109.6 W
R/T power (600 bps assumed)
5.9 dBW
3.9 W
HPA power (same assumed for both)
16.0 dBW
40.0 W
Cable Loss
4.7 dB
Initial HSD channel power
22.5 dBW
177.8 W
Settled HSD channel power
22.5 dBW
177.8 W
Initial 8400 C channel EIRP
14.5 dBW
28.2 W
Settled 8400 C channel EIRP
7.5 dBW
5.6 W
Initial 21000 C channel EIRP
19.5 dBW
89.1 W
Settled 21000 C channel EIRP
13.5 dBW
22.4 W
Table 1-5. Calculations
HGA Gain
dBW
Total Watts
After R/T 600 bps
(Watts)
After R/T 10.5 Kbps
(Watts)
12
23.3
214.8
210.9
105.2
Table 1-6. Total Number of Calls with Aero--H+ (Spot beam operation) and 10.5 Kbps
Packet Data Rate
M4 HSD Channels
8400 Voice Channels
21000 Voice Channels
1
5/6 (Note)
0
1
2
1
NOTE:
MCS 6000 = 5, MCS 7000 = 6
Содержание HS-600
Страница 15: ...CONTENTS ...
Страница 22: ...INTRODUCTION ...
Страница 27: ...SYSTEMS DESCRIPTION AND OPERATION ...
Страница 42: ...MECHANICAL INSTALLATION ...
Страница 52: ...ELECTRICAL INSTALLATION ...
Страница 64: ...INSTALLATION CHECK ...
Страница 69: ...ADJUSTMENT TEST ...
Страница 78: ...FAULT ISOLATION ...
Страница 81: ...MAINTENANCE PRACTICES ...
Страница 86: ...APPENDIX A ...
Страница 97: ...APPENDIX B ...