Installation Guideline
13
Technician’s Installation & Operation Guide
Donor Antenna Unit (DAU)
The Donor Antenna Unit (DAU)’s position is very important to receive clear and stable signals from the base station.
Find a location where the RF signal is the most stable and install the DAU.
If 800MHz and 1900MHz BTS directions are different and 800MHz signal level is weak (less than -95dBm), installer
may connect the DAU to 800MHz external donor antenna for receiving and transmitting signals from 800MHz Base
Station.
Check measurement criteria via WebGUI.
Install the DAU in a location where people cannot easily reach.
Do not install the DAU, SAU or Service antenna in the same room. (Ensure enough isolation)
Do not install unit near antennas of other carriers. (within 10ft)
Do not install antenna beam to the sea side direction.
Do not install at exceeded heights. (Higher than 65ft to prevent interference)
