Figure 3-7: C-Nav3050 Standard & Airborne Antenna Radiation Pattern; Figure 3-8: C-Nav3050 Base Antenna Radiation Pattern - C-Nav IALA Hardware Reference Manual

C-Nav Hardware Reference Guide
Figure 3-7: C-Nav3050 Standard & Airborne Antenna Radiation Pattern
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Optimal antenna performance is realized at elevations greater than 25º.
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There is a 10dB variation between 0º and 90º elevation (factor 10x); therefore, lower
elevation satellites are always more difficult to track.
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There is a 5dB variation between ~35º and 0º elevation (factor >3x)

Figure 3-8: C-Nav3050 Base Antenna Radiation Pattern

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Optimal antenna performance is realized at elevations greater than 35º.
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There is a 11dB variation between 15º and 90º elevation (factor >10x); therefore, lower
elevation satellites are always more difficult to track.
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There is a 9dB variation between ~35º and 0º elevation (factor >8x)
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