User Manual

MBF, Multi Band Repeater
PRODUCT DESCRIPTION AND USER'S MANUAL
© Axell Wireless Ltd A 200 93 00, rev E 58 (105)
Setting the gain in the repeater plays an important role in the
repeater configuration.
The gain is adjusted by changing the attenuation of the
repeater. The setting is done for the uplink and downlink
separately.
The attenuation can be changed in 1 dB steps. If the
attenuation for example is set to 15 dB, the repeater is
downgraded 15 dB from its maximum performance.
Maximum gain in the repeater can be read from the Product
Information menu (choose Configuration/Product).
4.6.1 Power Level
The repeater has a constant gain in both uplink and downlink paths. The gain is set by defining the
attenuation as described above.
The repeater has a defined maximum output level. If the input signal amplified by the gain set exceeds the set
output limit, an ALC (Automatic Level Control) loop is activated. This ALC ensures that the amplifier does
not add distortion to the radio signal. Below are examples of the ALC function for one and two carriers.
ALC one carrier
Input signal, dBm
Output power, dBm
+36,5
+33,8
-24 -16
Gain: 60 dB
+35
ALC two carriers