Cobham Wireless
-
Coverage
BSF0060 User Handbook
www.cobham.com/wireless
Document number: BSF0060HBK
Issue number: 5
Date: 14/05/2018
Page 13 of 43
3.1. Automatic Level Control
BSF0060 is equipped with Automatic Level Control (ALC). The ALC feature enables maintaining the
maximum defined output level.
The repeater has a defined maximum output level. If the input signal amplified by the gain set
exceeds the set output limit, an ALC 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.
+20
Input Signal, dBm
Output Power Level, dBm
Gain 70dB
-50
ALC
ALC one carrier
Input signal, dBm
Output power, dBm
+36,5
+33,8
-24
-16
Gain: 60 dB
+35
ALC two carriers
