Table of Contents
Advertisement
Page 12
11.3 Appendix C: GNSS Antenna Recommendations
Below are recommendations for active and passive antennas. Both can be used with the DXD/GPS. However, the distance
between the antenna and the receiver is an important factor in selecting the proper antenna. The GPS signal is very weak and
needs to be amplified to travel down a long cable to the receiver. The gain of the antenna and the quality of the cable will
determine the maximum cable length.
10.3.1 RECOMMENDED ACTIVE ANTENNA
GPS/QZSS center frequency
GLONASS center frequency
Galileo center frequency
Antenna element gain
Amplifier gain1
Amplifier gain2
Amplifier NF
Impedance
VSWR
[*1] Including cable loss / High Gain mode (FLNA: Open)
[*2] Including cable loss / Low Gain mode (FLNA: High)
[*3] For best jammer resistance (and lower power consumption), use 10 dB lower gain than the max gain.
10.3.2 RECOMMENDED PASSIVE ANTENNA
GPS/QZSS center frequency
GLONASS center frequency
Galileo center frequency
Antenna element gain
Impedance
VSWR
[*1] High Gain mode (FLNA: Open)
Item
MIN
-
-
-
0
10
15
-
-
-
Item
MIN
-
-
-
0
-
-
DXD/GPS/OCXO User Manual (rev 2.10)
TYP
MAX
Unit
1575.42
-
MHz
1602
-
MHz
1572.42
-
MHz
-
-
dBi
-
35 [*3]
dB
-
50 [*3]
dB
1.5
3
dB
50
-
Ω
-
2
-
TYP
MAX
Unit
1575.42
-
MHz
1602
-
MHz
1572.42
-
MHz
-
-
dBi
50
-
Ω
-
2
-
Note
2.046 MHz bandwidth
9 MHz bandwidth
4.092 MHz bandwidth
[*1]
[*2]
Note
2.046 MHz bandwidth
9 MHz bandwidth
4.092 MHz bandwidth
[*1]
Advertisement
Table of Contents
