Registered in England No. 08405712
VAT Registration No. GB163 04 0349
Siretta Ltd
Basingstoke Road
Spencers Wood
Reading
Berkshire RG7 1PW
sales
email
web
+44(0)118 976 9000
sales@siretta.com
www.siretta.com
38
QUARTZ-ONYX
Hardware Manual
Cellular Antenna Connector
The QUARTZ-ONYX is designed for use with 50 Ohm SMA male antennas. Four
cellular antennas are required to fully support all the operating bands and data
transfer rates. Performance with fewer antennas cannot be easily predicted.
When selecting an antenna, chose an antenna with a frequency band support that
matches the frequencies supported by the QUARTZ-ONYX and the chosen network
operator. Note that different countries and different network operators support
different frequency bands. If in any doubt, do a cellular site survey with one of Siretta’s
cellular network analysers to find which network operators are present and on which
frequency bands they operate.
The selected antenna needs to conform to the following requirements:
Parameter
Value
VSWR
≤3
Efficiency
>30%
Input impedance
50 Ω
Cable insertion loss (< 1 GHz)
<1 dB
Cable insertion loss (< 1 – 2.3 GHz)
<1.5 dB
Cable insertion loss (> 2.3 GHz)
<2 dB
Antenna Connectors
The antennas supplied as part of the accessory kit will meet these requirements.
Connect the antennas to the inputs marked “5G-1, 5G-2. 5G-3 and 5G-4”.