User's Manual

FiberDistributedAntennaSystem(FiberDAS)
3
TETRA
TerrestrialTr
unkedRadio.TETRAusesTimeDivisionMultipleAccess(TDMA)withfouruser
channelsononeradiocarrierand25kHzspacingbetweencarriers.
UL See“U
plink”
UMTS
UniversalMobi
leTelecommunicationsSystemisasystemwherebroadbandsignaling and
packeteddataareused.Thestandardsarehandledinthe3GPPgroupandthemostcommon
typeofmodulationisWCDMA.
Uplink Thesignalstha
taretransmittedfromtheterminal(phone)towardsthebasestation.
SC‐PC Atypeoffi
ber‐opticconnectorwhichisnotangledandshouldnotbeusedwithBirdFiber‐DAS
SC‐UPC Ultra‐pol
ishedfiber‐opticconnector.NotrecommendedwithBirdFiber‐DAS
RF
RadioF
requencies,denominatestherangeoftransversalelectromagneticwaveswitha
frequencyfrom3kHzto300GHz.Theupperendofthespectrumisoftenreferredtoas
microwavefrequencies.
WCDMA
W‐CD
MA
WidebandCodeDi
visionMultipleAccessisatechnologyemployedbybasestation
manufacturerswhomakeUMTSbasestations.Thistechnologyiscommonlyusedin3Gnetworks
andthemainmodulationemployedinEurope.