Diamond Antenna BB2M User manual

7-30MHz/50MHzWIDEBANDMOBILEANTENNA

【3-100MHzReceivingonly】

BB2M

Foldoverwhipelementstructure

OperationInstructions

Tousetheantennaproperly,readtheseinstructions

thoroughlybeforeusingit.Keepthismanualcarefully

athandforlateruse.

BB2Misforamateuruse.Pleasetransmitonthearmaturebands.

Warning

Toavoidinvitingaccidents,pleasefollowthefollowing

notices.

①Nutsandscrewscanbeloosenedbyvibrationduring

driving.Besuretocheckthosefasteningdevicesfrom

timetotimeandrefastenifnecessary.

②Strongimpactcancausetobreaktheantennaandmay

inviteaccidentsbyfallingtheelement.Itis

recommendedtodriveawayfromthoseobstaclessuch

asbranches.

③Strongvibrationscausedbydieselenginesmaydamage

theantenna.Itisrecommendedtoinstalltheantennaat

thelocationwherehasleastvibrationsaspossible.

④Touchingtheantennaduringtransmissionmaycauseto

electrify.Besuretoconﬁrmtoseeifthereisnoone

aroundtheantennaiftransmissionistakingplacewhile

thecarisparked.

⑤Don'tdriveacarwiththeantennatilted.Drivingthecar

withtheantennatiltedmaycauseserioushuman

accident.

⑥Toinstalltheantenna,besuretotakethosethingssuch

aslocaltraﬃcregulations,andphysicallengthofthecar

inaccount,andespeciallyithastobeinstalledthe

locationwhereisnoteasilyreachablebypeople.

⑦SWRoftheBB2Mislessthan2.0becauseBB2Mis

designedaswideband.Whentransmitting,usethe

antennatunerandadjusttheSWRlessthan1.5.SWR

couldbechangeddependingontheinstallationsituation.

⑧Ifthethunderseemstorumblingthevicinity,donot

touchtheantennaandcoaxialcabletoavoid

electrocutedbylightning.

Description

①BB2Misdesignedaswideband.Itcanbeusedon

7-30MHz/50MHz.

②Cumbersomeadjustmentthefrequencyisnotnecessary.

(Usingwiththeantennaturnerisnecessary)

Theunitisconsistedoftheantennafollowingparts.

Notice

Besuretowatchoutforcoaxialcablewiring,sinceoutside

waterismostlikelytoenterthroughthewiring.

Don'tattachtheantenna,bracketandcoaxialcablesclose

tothecarcablesorotherelectricalparts;otherwise,

fatalaccidentshouldhappen.

・Parts

OperationInstructions

HexagonalwrenchforM4

(M30005)

Upperelement

(M30001)

SetScrew(M4x4)

(M30004)

Lowerelement

(withJoint)

(M30002)

SetScrew(M4x4)

(M30004)

Matchingsection

(Omnidirectionallytiltable

whipsection)

(M30003)

3.0

2.0

1.5

1.0

SWR

5102030405060

MHz

Tiltablewhip

Pulluptheantennaverticallyandbendatthejoint.

Attentions

Don'tdrivewiththeantennatilted;otherwise,fatal

accidentshouldhappen.

Incasetheantennastretchesoutfromthecarbodywhen

turneddown,detachtheantennaotherwise,fatalaccident

shouldhappen.

Whenusingthetiltablewhip,payattentionsnottopinch

yourﬁngers.

Speciﬁcation

Frequency7-30MHz/50-54MHz

3-100MHz(Receivingonly)

Impedance50Ω

VSWRLessthan2.0

MaxPowerRating120WSSB

40WFM

Length1.98m

Weight800g

ConnectorM-J

※Whentransmitting,usingtheantennatunerisnecessary.

※Duetoitsbroadbandstructure,insomecasepropagation

eﬃciencyof theantennamaybereducedto1/10

comparedwithconventionalresonanttypeantennas.

Thoughtheproductbeingpurchasedismanufacturedunder

strictqualitycontrol,ifdamageiscausedbytransporting,ask

yourdealerpromptly.



Designandspeciﬁcationoftheseproductswillbechangedfor

futureimprovementwithoutadvancenotice.

（Foldoverwhipelementstructure）

VSWR

Installation

SinceBB2Misnotneededtheearth,itcanbeinstalledat

verticallyanyplaceonyourcar.

However,usethebigbracketbecausetheBB2Misheavy.

BB2Misnotneededtheearthsoitispossibletoinstallit

onbalcony.

Adjustment

TheBB2Miscompletelyadjustmentfree.

However,SWRislessthan2.0.PleasemakeSWRlessthan

1.5withantennatunerwhenusingBB2M.

Besuretocheckthosefasteningdevicesfromtimetotime

andrefastenifnecessary.

DIAMONDANTENNACORPORATION

MiyataBuilding,No,15-1,1-chome,SugamoToshima-ku,Tokyo170-0002,JapanPhone:(03)3947-1411Fax:(03)3944-2981

http://www.diamond-ant.co.jp/english.htmlE-MAIL:[email protected]

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