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2 - 1 8 | O v e r v i e w |
Tilt Selection
To use the tilt selection charts, first determine the system operating bandwidth, either 750 MHz or 870 MHz. Next, determine the desired system channel load either 77, 94, or 110 channels. Use the corresponding bandwidth and channel loading chart to determine the preferred tilt, either low, standard, or high.
Figure 2-11 illustrates the tilt selection chart for 750 MHz bandwidth and 77-channel load:
Figure
Relative level dB versus 750 MHz slope 77 channels
SG2 750 MHz Slope Chart
77 Analog Channels, 200 MHz Digital
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| 12 |
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| 11 |
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| 10 |
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dB | 9 |
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level, |
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elative |
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R |
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2 |
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| 1 |
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| 0 |
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| 50 | 150 | 250 | 350 | 450 | 550 | 650 | 750 |
Frequency, MHz
Low
Standard
High
SG 2000 Installation and O peration Manual