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Connecting the antennas
Ifyourmodelshippedwith2cellularantennasyoushouldassembletheantennasbyscrewing
thelongmetalwireintothebase.Youshouldinstallthoseantennasorsuitablealternative
antennasintotheSMAconnectorslabeledMainandAuxshownin

your unit did not come with cellular antennas or if you want to use your own cellular
SMA
Comment
If
antennas, they should meet the specifications shown in Table 1 – Antenna
Specifications. If you are using GPS, screw the GPS antenna into the GPS
connector.
MainandDiversityAntenna
Specification Requirement
Frequencies
supported
850MhzBand(824‐894MHz) enciescoverallpossible
.If900MhzBand(880‐960MHz)
1800MhzBand(1710‐1879MHz)
1900MhzBand(1850‐1990MHz)
2100MHzBand(1920–1980and
2110‐2170MHz)
Thesefrequ
frequenciessupportedbythemodem
youaresureyouarenotusingcertain
frequencies,thenyoumayomitthem
whenselectingyourantenna.
Gain≤2.5dBi
Polarization Vertical
Radiation
Pattern
Omni‐directional
Impedance 50Ω 
VSWR≤2:1
Antenna
≥
Efficiency
≥50% Canbe 40%forlessthan960MHZ,
≥50%forgreaterthan1710MHz

GPSAntenna
Specification Requirement
Frequenciessupported
1574.42 MHz–1576.42 MHz
Polarization RHCP(Right‐HandCircularPolarization)
RadiationPattern reDirectional,pointtothe upper hemisphe
Impedance 50Ω
VSWR≤1.5:1
AntennaEfficiency
rboththeefficiencyandtheupperhemisphereefficiency≥50%fo
Table 1 – Antenna Specifications
Connecting the power cube to the modem
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