User’s Manual for CR-SIW21WB-20
www.cerevotech.com
4.2 F.A.Q:
Question1
Solutions
Why is still no signal after
installing the equipment?
Check whether the output power of Adapter is DC9V or not
Check whether the connector of outdoor antenna is tight or not
Check whether the connectors of RF cable are tight or not
Check whether the outdoor signal is strong enough or not
Check whether the connector of indoor antenna is tight or not
Check whether the cable type is suitable or not
Question2
Solutions
Why the signal strength is too
weak on the edge of area (only
one or two bars signal in the
cell phone)?
Check whether the outdoor signal is over -80dBm
Check whether repeater is full gain or not
Check whether all connectors are tight or not
Check whether the output power of Adapter is DC9V or not
Check whether the cable type is suitable or not
Deploy r more indoor antennas
Question3
Solutions
Why I cannot make a call after
installation, even though I can
detect the downlink signal?
Check whether the isolation between outdoor antenna and
indoor antenna is enough or not
Change the location of outdoor/indoor antenna
Reduce the repeater gain
Question4
Solutions
The signal is not stable after
turning on the repeater power.
Check whether the outdoor signal is stable or not
Check whether the isolation between indoor antenna and
outdoor antenna is enough or not
Check whether antenna is well functioning
Check whether the RF cable is broken or not
