www.rftoo.com 9 / 16 info@rftoo.com
5.1.3 Adjust donor antenna direction until -45dBm to -55dBm signal strength is
measured.
5.1.4 Connect the donor antenna port to the REPEATER ‘BTS’ port.
5.2. Install the donor antenna without spectrum analyzer:
In case spectrum analyzer or other equivalent RF signal strength
measurement equipment is not available, the “Alarm” indicator on the front
panel can be used to adjust the donor antenna direction. When signal
strength received from the donor antenna is lower than-48dBm, the indicator
is green; when the received signal strength is higher than -35dBm, the
indicator is red; when the received signal strength is between-45dBm and -
38dBm, the indicator is orange. It is suggested to adjust the direction of the
donor antenna to make the indicator just change from green to orange which
indicates the received signal strength is around -48dBm.
5.2.1 Adjust the donor antenna direction until the “Alarm” indicator just
change from green to orange.
5.2.2 Connect the donor antenna port to the REPEATER “BS” port.
If the “Alarm” indicator stays green when you change the donor antenna
direction, this means the donor signal is too weak and you will get degraded
coverage even no coverage. Following are what you need to do
5.2.3 Immediately report to the project manager and system design engineer.
5.2.4 Recommend to confirm the signal strength using a spectrum analyzer
if possible.
5.2.5 Work with your project manager and system engineer, check if you can
replace the donor antenna by a higher gain antenna to get better signal.
5.2.6 Work with your project manager and system engineer, check if you can
relocate the donor antenna to get better signal.
6. Connect the service antenna to REPEATER’s “MS” port.
7. Set all attenuation switches on the ATT switch panel to off position, unless the
system design document requires to reduce the uplink and down gains from factory
default values.
8. Check and ensure “BS” and “MS” ports are connected to feedlines.
9. Connect the power adapter, and plug in the power supply.
10. Follow the test plan, walk test the call quality in the service area.
11. When it is needed, service antennas may be relocated to satisfy coverage
requirement. You will need to get approval from your project manager and system
