SharkRF openSPOT3 - Page 45

TheRSSIgraphshowsreceivesignalstrengthfromthemodem.TheBERgraphshowsreceivedBitErrorRatio
duringacall.BERiscalculatedalsoforpacketsreceivedfromthenetwork,notjustfromthemodem.The
dejitterqueuegraph(onlyshownifAdvancedmodeisenabled)showsthenumberofpacketswaitinginthe
dejitterqueue.
Aboutthedejitterqueue
Allpacketsreceivedfromthenetworkwillfirstgotothisqueuetoeliminatenetworkjitter.
Ifthedejitterqueuelengthistooshort,thegraph'slinecantouchzeroduringacallandtheaudiocanstopfor
amomentasthemodemrunsoutofframestotransmit.
Ifthequeue'slengthistoolong,thedelaycanbeuncomfortablyhigh.
Youcanusethisgraphtosetaproperdejitterqueuelength.Thereshouldbeatleastafewpacketsinthe
dejitterqueuewhenreceivingacallfromthenetwork.YoucansetthedejitterqueuelengthontheNetwork
page(thesettingonlyshowsupifAdvancedmodeisenabled).Asageneralrule,ifyouhaveagoodnetwork
connectiontotheselectedconnector'sserver,setdejitterqueuelengthto500ms,andifyouhavea3G/4G
internetconnectionorvoicestuttersalot,trysettingthelengthtoatleast1000ms.
Statuspage
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