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Siretta Ltd
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22
ZETA-NLP Series
LTE Cat M1/NB IoT/GSM Ultra Low Power Modem
Antenna Connectors
Figure 23.
Antennaconnector
Cellularantennaconnector
Antenna Placement
Wheninservicetheantennashouldbeplacedawayfromelectronicdevicesor
otherantennas.Therecommendedminimumdistancebetweenadjacentantennas,
operatingonasimilarradioband,isatleast50cm.
Antenna Connection Cable
Ifacableisusedtoconnectthemodemtotheantennathiscablemustbeahigh
qualitylowlosscable.Thecableandanyconnectorsusedshouldhave50ohms
impedance.