User guide

Features
Frequency Range: 300 MHz to 1 GHz
Part of the ANK series antenna kits
Compact and light weight
Transmit or receive capability
Three year warranty
Application 
TheALC-100LogPeriodicantennaissuitableforEMC
testingtoverifycompliancetovariousEMCstan-
dardssuchasFCC,EN/CE,CISPR,etc.Thebroadband
characteristicsofthelogperiodicantennamakeita
goodchoiceformakingsweepmeasurementsand
forautomatedmeasurementsystems.Italsohas
lowVSWRforecientuseavailablepowerforgen-
eratingelectromagneticeldforimmunitytesting.
Inaddition,theALC-100canbeusedforEMCnor-
malizedsiteattenuationmeasurements.Normally,
tuned dipole antennas are used for this purpose
forbetteraccuracy.However,asetoflogperiodic
antennasareeasiertousebecauseitiscompactin
sizedoesnothavetobetunedateachfrequency.
AccordingtoANSI63.4specicationuseofcalibrated
LogPeriodicantennasarepermittedasanalterna-
tivetoDipoleantennas.
Theindividualcalibrationdatashippedwitheach
antenna includes antenna factor and isotropic
gain.Theantennafactorsareusedtocalculateeld
strengthfortheselectedfrequency.Theantenna
factor(dB/m)fortheselectedfrequencyisaddedto
themeasuredoutput(dBV)displayedbythereceiver
toobtaineldstrength(dBV/m).Thegaindatacan
beusedtopredicttherequiredpowerneededto
generatedesiredelectromagneticeldforimmunity
testingusingtheALC-100.
Description 
TheCompactLogPeriodicantennamodelALC-100is
abroadbandantennawithfrequencyrangeof300
MHzto1GHz.ThisantennacanbeusedforEMC
emissionsorimmunitymeasurements.Itissmaller
anlighter compared tothe ALC-100Log Periodic
antennaandwasdesignedfortheCom-PowerANK
seriesantennakits.
Theseantennasareindividuallycalibratedusingpro-
ceduresdescribedinANSI63.4at10meterdistance
using NIST traceable equipment. The calibration
dataisshippedwiththeantennatomaximizeEMC
measurement accuracy. User dened calibration
distancesor accreditedcalibration serviceis also
availableuponrequest.TheALC-100has50ΩNtype
connectorandcanhandleupto50Wofcontinuous
powerinput.
TheALC-100canbemountedtoatripodormast
from the center using the attached mounting
adapter.Thisadapterhaspivotingjointthatallows
theantennatoberotatedtoverticalorhorizontal
polarizationswithease.Thebottomoftheadapter
hasasa1/4inchx20threadhole.Thisenablesthe
antennatobeattachedtotheCom-PowerAT-120
tripods.TheAT-120tripodcanbepurchasedwitha
customcarryingcaseATC-120.
Compact Log Periodic
ALC-100
Com-PowerCorporation  114OlindaDrive,Brea,California92823  (714)528-8800 www.com-power.com