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]