AntennaBody
SetScrew
Scale
1. Selecttherightfrecuency,checkthepositionof
theantennabodyscalewiththegraphicorthe
bandchartFig.1&Fig.2
2. Loosenthesetscrewasahalfturnbyhand.
(Keeptherodelementretracted).
3. Slidetheantennabodytotherequest
frequencyafterstep1andfasten it with the
set screw by hand.Maketherodelement
fulllength.
(Donotuseanytoolssuchasplierswhen
fastensetscrew.Theantennamaybe
damaged).
4. TransmitandmeasuretheSWR.lfthe
tuningfrequencyislowerthantherequest
frequency,maketherodelementshortor
maketheantennabodydown.
TheSWRshouldbelowerthan1.5
dependingontheconditions.Ifnot,please
changetheinstallationconditions.Wealso
recommendusingtheantennatuner.
5. lfthetuningfrequencyishigherthanthe
requestfrequency,movetheantennabody
up.
6. Whenadjusting50MHzband,putthe
antennabodydownandmaketherod
elementfulllength.(Largeradialelement).
7. Whenadjusting144/430MHzbands,putthe
largeradial(Largeradialelement)inthexed
antennaandfastentheradialelement.When
adjust144MHzband,shortentheantenna
body1/4wave,changetheradialelementof
thebodyantennatotheshorterone(Shortradial
element).Whenadjustíng430MHz,makethe
antennabodyretractedwiththelargeradial
element(Largeradialelement).
Adjustment
Atenttion!!!
1. Pleaseinstalltheantennavertically
tohaveabetterperformance.
2. TheSWRshouldbelowerthan1.5
dependingontheconditions.Inthat
case,pleaseusetheantennatuner.
Installation Place (example)
1. Setthebracketwherethe
groundingearthcanbetaken.
(guttermount,trunklidetc)
2. lnstalltheantennaatthecarroof
bythemagnetbase.
3. Setthemagnetbaseonthewood
tableandinstalltheantennawith
approx.10mgroundwireand
connecttothegroundingearth.
4. Installtheantennaatthemetal
handrailwherethegroundingearth
canbetaken.
SettingsofHFPRO1
Frequency Scale(mm)
30.000 3
29.000 3
28.000 3
24.900 4
21.300 4
18.000 5
14.100 8
10.500 16
7.400 22
(Fig.1)
(Fig.2)
Scale
Frequency
(Mhz)
27
25
20
15
10
5
2
710 14 18 21 24 28 30
RodElement
RadialElement
(AdditionalLarge/Short)