Product Info

TOPFLYtech Co., Limited | Page 4 www.topflytech.com
Primary Antenna Performance —— Efficiency and Gain
Freq.(MHz) Efficiency
（
%
）
Efficiency
（
dB) Gain (dBi)
1710
43.1% -3.65 1.54
1730
45.7% -3.40 1.64
1750
47.3% -3.25 1.70
1770
47.3% -3.25 1.58
1790
47.5% -3.23 1.42
1810
48.0% -3.19 1.46
1830
49.0% -3.10 1.52
1850
48.9% -3.11 1.45
1870
46.9% -3.28 1.48
1890
47.8% -3.20 1.39
1910
48.3% -3.16 1.42
1930
50.2% -3.00 1.50
1950
49.1% -3.09 1.40
1970
48.0% -3.19 1.42
1990
47.4% -3.24 1.42
2010
50.2% -3.00 1.49
2030
49.9% -3.02 1.50
2050
47.7% -3.21 1.59
2070
48.9% -3.11 1.64
2090
48.4% -3.15 1.59
2110
50.0% -3.01 1.67
2130
51.8% -2.85 1.74
2150
52.0% -2.84 1.80
2170
50.7% -2.95 1.75
2190
48.0% -3.19 1.73
2200
46.0% -3.38 1.72
Freq.(MHz)
Efficiency
（
%
）
Efficiency
（
dB
)
Gain(dBi)
610
20.8% -6.83 -2.26
620
22.2% -6.54 -1.93
630
24.2% -6.17 -1.35
640
27.0% -5.69 -1.03
650
28.9% -5.39 -0.84
660
32.6% -4.87 -0.65
670
34.2% -4.66 -0.48
680
38.2% -4.18 -0.21
690
39.8% -4.00 0.34
700
41.6% -3.81 0.51
710
41.8% -3.79 0.65
720
42.2% -3.74 0.50
730
42.5% -3.71 0.58
740
42.5% -3.71 0.80
750
42.5% -3.71 0.80
760
42.3% -3.74 0.80
770
41.3% -3.84 0.48
780
40.7% -3.90 0.47
790
39.6% -4.02 0.08
800
40.7% -3.90 0.27
810
42.1% -3.76 0.44
820
46.2% -3.35 0.57
830
48.4% -3.15 0.55
840
50.1% -3.00 0.59
850
50.5% -2.97 0.73
860
50.9% -2.93 0.80
870
51.0% -2.93 1.00
880
50.7% -2.95 0.86
890
50.2% -2.99 0.90
900
51.5% -2.88 0.98
910
54.1% -2.67 1.19
920
54.1% -2.67 1.16
930
54.5% -2.64 1.15
940
53.0% -2.75 1.06
950
51.5% -2.88 0.71
960
49.8% -3.03 0.90