User's Manual

MBF-40 AMERICAS REPEATERS
PRODUCT DESCRIPTION AND USER’S MANUAL
Cobham Wireless – Coverage Date: 14-Feb-16 www.cobham.com/wireless
Document number: 00071UM Rev. 4.3
Page | 1-3
1.2 ALC
The repeater has a constant gain in both uplink and downlink paths. 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.
1.3 Operating Temperature
The MBF-40 is designed primarily for multi carrier purposes. If the repeater is run at full output
power over a long period of time, additional, external cooling may be required; this can take the
form of air-conditioning or an external fan assembly.
Specific MBF-40 models, whose power consumption exceeds 400W, are provided with an additional
fan hood cooling assembly.
NOTE: The repeater is equipped with a power management function that steps down the power and,
if needed, fully shuts down the amplifier chains until temperature reaches normal values.
1.4 MBF-40 Management Web GUI
MBF-40 is remotely commissioned and monitored via an OMUII session. Local access to the unit is
not required for commissioning.
Additional configuration and troubleshooting options are available via a direct connection to the MBF-
40 IP address. A direct session can be opened locally or remotely.
NOTE: Direct remote communication requires connecting the MBF-40 to an Ethernet network.
Figure 1-2: MBF-40 Home Screen