User's Manual

5 | P a ge
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GENERALOPERATIONALDESCRIPTION
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TheBDADownlinkpathreceivesRFsignalsfromthebasestationandamplifiesandtransmitsthemto
thesubscriber.TheBDAUplinkpathreceivesRFsignalsfromthesubscriberandamplifiesand
transmitsthemtothebasestation.TheUplinkandDownlinkoccupytwodistinct frequencybands. 
Seetableonpage6forli
stofbandsandcorrespondingbandcodes.Frequencies applicabletoyour
unitwillalsobeonunit’sspecifi cationsheet.
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Thediplexerisolatesthepathsandrouteeachsignaltotheproperamplifyingchannel.
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AnAutomaticLevelControl(ALC)allowsforoutputpowerlimiting.Avariablestepattenuatorgives0–
30dBofattenuationin2dBsteps.Theuseofthesecontrolsiscoveredinthe“OPERATION”section,
laterinthisdocument.
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TheMini‐BDAcanbeusedasalineamplifier.Withanoptionalexternalbias‐tee,theMini‐BDAwill
functionwithpowercomingfromtheIn‐buildingantenna.