Wirnet iBTS
Document title : Installation and
Maintenance Manual
Version : 2.0
Author : SNI
Date : 04/12/2018
Classification
This document is the strict property of Kerlink and shall not be either copied nor sent without express
written authorization of Kerlink
Internal Use
Kerlink m2m technologies reserved rights
Confidential
Kerlink – 1 rue Jacqueline Auriol – 35235 THORIGNÉ-FOUILLARD
Page 92 / 221
Strict confidential
1.8.2
GNSS and WAN antennas
1.8.2.1
GNSS antenna
The GNSS antenna is required for the Wirnet iBTS standard casing only, when featuring a
“CPU module”.
The Wirnet iBTS Compact embeds a GNSS/LTE internal antenna detailed in §1.8.2.3 and
therefore does not require the GNSS antenna.
The GNSS antenna characteristics are detailed in the following table:
Characteristics
Detail
Specification
Frequency range
1572 - 1606 MHz
Antenna peak gain
3dBic
Typical VSWR
<2.0:1
Impedance
50 ohms
Polarization
RHCP
Noise figure
1.5dB typ
Total gain
27dB typ
Out of band rejection
30dB min at +/-100MHz
IIP3
-10dBm
IP1dB
-15dBm
Input voltage
3.0V - 5.5V
Current drain
11mA at 3V
Cable length
5 m
Cable type
RG58
Connector type
N male
Dimensions (DxH)
Diameter and Height
80 mm (D) x 42 mm (H)
Operating temperature
-40°C to +85°C
Wind resistance
> 200 km/h
IP rating
IP66
Note:
a dome antenna bracket is provided with the GNSS antenna, allowing wall mounting,
pole mounting and metallic strapping. Screws, nuts, U-bolt and metallic strapping are not
provided by KERLINK.
1.8.2.2
LTE antenna
The LTE antenna is required for the Wirnet iBTS standard casing only, when featuring a
“WAN module”.
The Wirnet iBTS Compact embeds a GNSS/LTE internal antenna detailed in §1.8.2.3 and
therefore does not require the LTE antenna.