Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
email
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+44(0)118 976 9000
www.siretta.com
32
ZETA-xxP Series
Hardware Manual
rev
D
Cellular Antenna Connector
A female SMA antenna connector is provided to allow connection of a passive antenna.
For optimum performance the antenna assembly connected to this modem is required
to have the following characteristics:
»
For 2G GSM operation specified operation in the following bands:
850/900/1800/1900MHz
»
For 4G LTE Cat 1, LTE Cat 4, LTE Cat M, LTE Cat NB IoT operation specified
operation in the following bands: 700/800/850/900/1700/1800/1900/2100MHzMHz
»
The characteristic impedance on any antenna or cable assembly attached to this
modem should be 50 ohms
»
The antenna must be capable of handling a minimum of 2W output power
»
The VSWR should be less than 3:1 to avoid damage to the modem