Com-Power AH-826 User manual

Brand: Com-Power

Model: AH-826

Category: Television antennas

Type: User manual

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INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913







INSTRUCTIONMANUAL



HornAntenna



AH‐826

18GHzto26.5GHz



Page2of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

TableofContents

1.0 Introduction..............................................................................................................3

2.0ProductDescription......................................................................................................4

Overview....................................................................................................................................4

StandardItemsincludedwiththeantenna:............................................................................4

3.0 ProductSpecifications..............................................................................................5

3.1 OtherHornAntennasavailablefromCom‐Power.....................................................5

3.2 Otherinstrumentationaccessoriesavailable.............................................................5

4.0 ImportantSafetyPrecautions..................................................................................6

5.0 Warranty...................................................................................................................7

5.1 Maintenance..................................................................................................................7

6.0Settingupandusingtheantenna...............................................................................8

7.0 TheoryofOperation..................................................................................................9

7.1 Overview.......................................................................................................................9

8.0 TypicalAntennaData...............................................................................................10

Figure8.1–TypicalAntennaFactors....................................................................................................10

Table8.1–TypicalPowerRequirementinWattsat1meterantennaspacing...................................10

 

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INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

1.0Introduction

This manual includes the antenna specifications, safety precautions, maintenance and

warrantyinformation.Italsoincludessomebasicguidanceonproperlyonhowtouseitfor

EMCtesting.



Informationcontainedinthis manual isthe propertyof Com‐PowerCorporation.It is issued

with the understanding that none of the material

 may be reproduced or copied without

permissionfromCom‐Power.

Page4of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

2.0ProductDescription



Overview



ThemodelAH‐826HornantennawasspecificallydesignedforEMImeasurementfrom18to

26.5GHz.TheantennaiscapableofreceivingandtransmittingsignalsforEMCtesting.The

Hornantennaisatransducerwhichconvertselectricfieldstrengththatcanbedisplayedona

spectrumanalyzeror

EMIreceiverduringEMItesting.



Settingupusingtheantennaisdescribedinsection6.Informationontheoryofoperationis

giveninsection7.



StandardItemsincludedwiththeantenna:

User'sguide.

CalibrationdataandCertificatetraceabletoNIST.

Optionalitem

ISO‐17025calibrationdataandcertificate.





Page5of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

3.0 ProductSpecifications

Model:AH‐826

FrequencyRange: 18GHzto26.5GHz

TypicalVSWR:  <2:1

PowerHandling: 5WattsCW

OutputImpedance: 50Ω

Polarization:  Linear

Gain:23dBimin

AntennaFactors: 32to34dB/m

Connector:  SMA(f)

Dimensions(LxWxH): 7.8x9.5x5.6inches

19.8x24.1x14.2cm

Weight:  2lb./0.9kg



3.1OtherHornAntennasavailablefromCom‐Power

• AH‐220‐200MHzto2GHz

• AH‐8065‐800MHzto5GHz

• AH‐118‐1to18GHz

• AH‐640‐26.5to40GHz

• AH‐840‐18to40GHz

3.2Otherinstrumentationaccessoriesavailabl e

• PAM‐2000Preamplifier–10MHzto2GHz,27dBGain

• PAM‐6000Preamplifier–1to6GHz,30dBGain

• PAM‐118APreamplifier–1‐18GHz,40dBGain

• PAM‐840Preamplifier–18to40GHz,25dBGain

• AT‐120

AntennaTripod

• Microwavecableassemblies



.

Page6of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

4.0 ImportantSafetyPrecautions



GeneratingElectroMagneticFields

TheModelAH‐826antennacanusedtogenerateelectro‐magneticfieldsforimmunity

testing.Immunitytestingshouldbeconductedinsideashieldedenclosureoranchoic

chambertoavoidinterferencetootherequipmentandexposureofpersonneltohigh

electromagneticfields.



Maintenance

Therearenouser

serviceablepartsintheantenna.Usermodificationstotheantennawill

voidwarrantyandmayalsoinvalidatethecalibration.Sendtheantennatoanauthorized

Com‐Powerservicecenterifneedsrepair.Pleasevisitourwebsiteatwww.com‐power.com



torequestareturnmerchandiseauthorizationnumber(RMA)beforeyousendtheunitinfor

service.



Environmentalconditions



Thisantennaisdesignedforindoororoutdooruse.

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INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

5.0 Warranty

Com‐Power warrants to its Customers that the antennas it manufactures will be free from

defectsinmaterialsandworkmanshipforaperiodof3years.Thiswarrantyshallnotapplyto:



•

Transportdamagesduringshipmentfromyourplant.

•

Damagesduetopoorpackaging.

•

Productsoperatedoutside

theirspecifications.

•

ProductsImproperlymaintainedormodified.

•

Consumableitemssuchasfuses,powercords,cables,etc.

•

Normalwear

•

Calibration

•

Products shipped outside the United States without the prior knowlege of Com‐

Power.



Inaddition,Com‐Powershallnotbeobligedtoprovideserviceunderthis

warrantytorepair

damageresultingfromattemptstoinstall,repair,serviceormodifytheantennabypersonnel

otherthanCom‐Powerservicerepresentatives.



UndernocircumstancesdoesCom‐Powerrecognizeorassumeliabilityforanyloss,damage

or expense arising, either directly or indirectly, from the use orhandling of this

 product, or

anyinabilitytousethisproductseperatelyorincombinationwithanyotherequipment.



Whenrequestingwarrantyservices,itisrecommendedthattheoriginalpackagingmaterial

beusedforshipping.Damageduetoimproperpackagingwillvoidwarranty.



In the case of repair or complaint, a label should

 be attached to the housing of the

instrumentwhichdescribesbrieflythefaultsobserved.Pleaseincludethename,telephone

number and email address of the contact person. Please visit our website www.com‐

power.comandobtainanRMAnumberbyselectingserviceandcompletingtheonlineform.



5.1 Maintenance



This antenna has  no user serviceable parts inside. If the unit does not operate or needs

calibration,pleasecontactCom‐Power Corporation.Anymodifications or repairsperformed

on the antenna by someone other than an authorized factory trained technician will void

warranty.



Theexteriorsurfacemaybecleanedwithmilddetergent

andthenbewipedwithadry,clean,

lint‐freecloth.

Page8of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

6.0Settingupandusingtheantenna



6.1 Connecting



ThemodelAH‐826hornantennahasatypeSMAfemaleconnectorofsignaloutputorinput.

Itcanhandleupto5WattsCWsignal.Theseconnectorsaredelicateandshouldbehandled

withcare.Donotovertightenoruseexcessiveforcewhenmakingconnections.



6.2 Antennasetupforreceivingsignals



ThemodelAH‐826mustbeconnectedtothereceiver/spectrumanalyzerwithhigh

frequency,lowlosscables.Thelossmustbemeasuredandusedincalculatingthefield

strength.



6.3 Antennasetupfortransmittingsignals



WhentheAH‐826antennaisusedfortransmittingsignals,theantennaisconnectedtoa

microwavesignalgeneratorandapoweramplifier.ThemodelAH‐826antennacantransmit

upto5Wattsofcontinuouspower.Thefieldgeneratedbytheantennacanbemeasured by

usingafield

strengthmeter/probeoranotherhornantenna.



6.4Testlocation



TheHornAntennamustbemountedandplacedinareaawayfromotherconductiveobjects

ormaterialswheninuse.Largeconductivebuilding,structuresandelectricalcables,can

reflectandreradiatetheemissionsofEUT,causingerrorsinthetestdata.Inaddition,care

shouldbetakentokeepmeasuring

instrumentsandtestpersonnelawayfromthetestarea

toavoidinterferencetothetest,aswellexposureoftestpersonneltohighelectro‐magnetic

fields.



 

Page9of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

7.0 TheoryofOperation



7.1 Overview



Broadbandantennasallowmeasurementofsignalsoverawidefrequencyrange.ModelAH‐

826HornAntennasarebroadbandantennasthatoperateinthefrequencyrangeof18to

26.5GHz.



ModelAH‐826canbothreceiveandTransmitoverthefrequencyrangeofoperationandis

usedforsusceptibilityandemissions

testinginEMCLaboratories.



BeforetheHornantennasareusedformeasurementtheyhavetobecalibrated.During

calibrationofaknownfieldstrength(dBµV/m)isgeneratedaroundtheantennaateach

frequencyatpredeterminedintervalsbetween18GHz–26.5GHz.Thedifferencebetween

fieldstrength(dBµV/m)receivedby

theantennaandknownfieldstrengthgenerated

(dBµV/m)istheantennafactor(dB/m)forthatfrequency.DuringEMCtestingtheantenna

factorforthefrequencyofinterestisaddedbacktoreadingontheEMImeterorspectrum

analyzertocalculatethefieldstrengthmeasuredbytheantenna.



 Fieldstrength

(dBµV/m)=Outputmeasured(dBµV)+AntennaFactor (dB/m)



WhenusingtheAH‐826antennafortransmittingapplication,pleaserefertoTable8.1to

determinethepowerrequirementstogeneratethedesiredelectro‐magneticfield. 

Page10of10

INSTRUCTIONMANUAL

HornAntenna(AH‐826)



19121ElToroRoadLakeForest,CA92676●(949)459‐9600●fax(949)459‐9604●com‐power.com

REV102913

8.0 TypicalAntennaData

Figure8.1–TypicalAntennaFactors

Frequency



Gain

(dBi)

10

V/m

20

V/m

100

V/m

18000 23.02 0.02 0.07 1.66

19000 23.29 0.02 0.06 1.56

20000 23.73 0.01 0.06 1.41

21000 23.95 0.01 0.05 1.34

22000 24.16 0.01 0.05 1.28

23000 24.34 0.01 0.05 1.23

24000 24.91 0.01 0.04 1.08

25000 24.37 0.01 0.05 1.22

26000 24.51 0.01 0.05 1.18

26500 24.57 0.01 0.05 1.16

Table8.1–TypicalPowerRequirementinWattsat1meterantennaspacing



18 19 20 21 22 23 24 25 26

Factors(dB/m)

Frequency(GHz)

Com-Power AH-826 User manual

Brand: Com-Power

Model: AH-826

Category: Television antennas

Type: User manual

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Com-Power AH-826 User manual

Com-Power AH-826 User manual

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