108
Antenna pointing angles can be calculated in degrees from true
north from the following equations:
Where
∆
is the absolute value of the difference between satellite
and TVRO site longitudes and
Φ
is the site latitude.
Noise Temperature & Noise Figure
Noise
Noise
Noise
Noise
Figure
Temperature
Figure
Temperature
(dB)
(˚K)
(dB)
(˚K)
2.0
170
0.9
67
1.9
159
0.8
59
1.8
149
0.7
51
1.7
139
0.6
43
1.6
129
0.5
35
1.5
120
0.4
28
1.4
110
0.3
21
1.3
101
0.2
14
1.2
92
0.1
7
1.1
84
00
1.0
75
Aximuth and Elevation Angles
System Calculations
Summary of Contents for AMM-806
Page 86: ...79 TVCB PC Installation ...
Page 93: ...86 SMI Installation Torque Patterns 1 Start Here 2 3 4 5 6 1 Start Here 2 3 4 4 PORT 8 PORT ...
Page 125: ...118 Fiber Optics Fiber Loss vs Path Length Single Mode 1550 nm ...
Page 156: ...149 Cable TV Channel Format NTSC NTSC Composite Video Waveform ...
Page 157: ...150 US Frequency Spectrum ...
Page 158: ...151 FCC Aeronautical Band Frequencies Used for Communication and Navigation ...
Page 175: ...168 Common CATV Symbols ...
Page 176: ...169 Common CATV Symbols ...
Page 177: ...170 Digital L Band Distribution Symbols ...
Page 178: ...171 Digital L Band Distribution Symbols ...
Page 183: ...176 Typical Cable Attenuation Chart in dB 100 Feet 68 F 20 C ...
Page 187: ...180 Echo Rating Graph ...
Page 188: ...181 Signal to Interference Limits Non Coherent Carriers ...
Page 190: ...183 Heterodyne Modulator Analog ...
Page 191: ...184 Heterodyne Processor Analog ...
Page 213: ...206 Multiplexers ...
Page 285: ...Rev 8 0 ...