NavCom SF-2040 Rev.F - Manual (Page 72)

SF er Guide – Rev. F -2040 Us
B-70
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To achieve the greatest level of accuracy,
the absolute phase center values must be
incorporated into your processing. Phase
center information on this antenna is
found on our web site:
http://www.navcomtech.com/Support/Dow
nloadCenter.cfm?category=antenna
Radiation Pattern
24º
32º
0dB 0dB
-4dB @ 5º -4.5dB @ 5º
6.5dB @ 90º
07-00008-A
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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 12: NAVSF2040G Radiation Pattern
Optimal antenna performance is realized at
elevations greater than 30º.