User Manual

AXELL 3604 A284 SERIES UHF REPEATER
PRODUCT DESCRIPTION AND USER’S MANUAL
22 DOC PN 3604 A284 Series-UM © Axell Wireless Ltd
4.9 Antenna (RF) Connections
4.9.1 Verifying the Link between the BTS and the
Repeater
This test checks the signal strength from the BTS antenna to the Repeater.
Proceed as follows:
1. Using a Spectrum analyzer, measure the received signal from BTS at the Donor
antenna port near the Repeater.
2. Adjust the Donor antenna direction to receive the maximum signal strength.
3. Compare the received signal strength with the calculated signal strength from the design
phase.
In case of discrepancy, check for one of the following:
 Antenna out of direction
 Antenna tuned to side lobe instead of main lobe
 Antenna connector or antenna cable faulty
 Line-of-sight problem (obstruction), etc.
 Register the signal strength of the downlink channel for the system operation phase.
Refer to the following figure for the CSR RF antenna connections.
NOTE: For models supporting a GPRS modem, you may also connect the modem antennas
at this stage. If your repeater includes a modem, the modem antenna port may either be on
the left or right panel  depending on your enclosure.