Motorola GTR 8000 - Table 3-4 Power Connection Wire Gauge Maximum Distances for HPD

GTR8000BaseRadio
48VDCsystem),thecurrentwillbeupto9.5A.Useofsmallergaugewirewouldreducethislengthdependingon
theresistanceofthewire.Todeterminethemaximumlengthofwireforwireotherthan2AWG,thefollowing
relationshipcanbeused:
•Length(feet)=V/I/R
where:
•V=voltagedropinonelegoftheloop(max=0.5V)
•I=currentdrawnbythebaseradioduringDCoperation(9.5A)
•R=resistanceofthewirebeingconsidered(inOhmsperfoot)
Forcommonwiresizes,themaximumdistancesshowninTable3-4apply.
Table3-4PowerConnectionWireGaugeMaximumDistancesforHPD
AWGResistance(ohm/1000ft)
MaximumDistance
20.1563
102m(335ft)
30.1970
81m(265ft)
40.2485
64m(210ft)
5
0.3133
51m(165ft)
60.3951
40m(130ft)
3-206871022P86-A-November2012