SmartFlex SR305
7.5
Technical parameters of GNSS
GPS specifications
Antenna
50 Ohms – active
Protocols
NMEA 0183 v3.0
Frequency GPS
1575.42 MHz Typical
Frequency GLONASS
1597.551 MHz Min.; 1605.886 MHz Max.
Tracking Sensitivity
∗
(Open sky)
Active antenna or LNA: -159 dBm
Passive antenna: -156 dBm
Acquisition Sensitivity
∗∗
(Open sky)
Active antenna or LNA: -149 dBm
Passive antenna: -145 dBm
Cold Start Sensitivity
-145 dBm
Acquisition time (TTFF)
Warm start: 29 s Max.
Cold start: 32 s Max.
Table 32: Technical parameters of GNSS
∗
Tracking sensitivity is the lowest GNSS signal level for which the device can still detect an
in-view satellite 98 % of the time when in sequential tracking mode.
∗∗
Acquisition sensitivity is the lowest GNSS signal level for which the device can still detect
an in-view satellite 50 % of the time.
7.6
Technical parameters of WiFi
WiFi
Antenna connector
R-SMA – 50 Ohms
Supported WiFi band
2.4 GHz, 5 Ghz
Standards
802.11a, 802.11b, 802.11g, 802.11n
2.4 GHz supported channels
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11
5 GHz supported channels
36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161, 165
Type of device
Access point, station
Max. clients in AP mode
10
WiFi TX Output Power
17,3 dBm
WiFi RX Sensitivity
-96,3 dBm
Table 33: Technical parameters of WiFi
43