Sirio Antenne SD 27 Dipole Installation Manual
SD 27 DipoleSD 27 Dipole
SD 27 DipoleSD 27 Dipole
SD 27 Dipole
CB Base Station Antenna (27 MHz)CB Base Station Antenna (27 MHz)
CB Base Station Antenna (27 MHz)CB Base Station Antenna (27 MHz)
CB Base Station Antenna (27 MHz)
Installation ManualInstallation Manual
Installation ManualInstallation Manual
Installation Manual
B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 09/07/2010 - Cod. ID097
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DESCRIPTION
1/2 Dipole antenna working on 27 MHz band with Gamma Match System. It has been
completely made of anticorodal aluminium and supplied with Boom and steel bracket for the
fitting on the support mast. The fixing part with rapid mounting system is made of die-cast metal
to get the maximum strength and robustness. The radial whip is earthed and it is supplied with
jointing sleeves of polythene for a perfect water-proofing. Its supplied with UHF Female connector.
SPECIFICATIONS
Dipole
26-28 MHz
50 !
Horizontal mounting Directional
Vertical mounting Omnidirectional
Linear Horizontal
0 dBd - 2.15 dBi
" 3780 KHz (340 channel)
# 1.1
1000 Watts (CW) continuous,
3000 Watts (CW) short time
UHF-female
Aluminium, Nylon, Steel
80 N at 150 Km/h / 130 Km/h
0.07 m
2
5420 x 1380 x 100 mm
1380 mm / $%33 mm
5420 mm
$%8-12-16 mm
3050 mm
2560 gr
$ 35-50 mm
Electrical Data
Type :
Frequency Range :
Impedance :
Radiation :
Polarization :
Gain :
Bandwidth @ SWR # 2 :
SWR @ res. freq. :
Max Power :
Connector :
Mechanical Data
Materials :
Wind Load / Resistance :
Wind surface :
Dimensions (approx) :
Boom Length / Diameter :
Max. element lenght :
Element Diameter :
Turning Radius :
Weight (approx.) :
Mounting Mast :
MOUNTING INSTRUCTIONS
1.0 Assembling of elements
Extract the telescopic elements unstringing the tube $ 12 and mount the jointing sleeve fixing the first
section by means of the supplied phillips screw. Assemble the second jointing sleeve, string the top tube $
8 together with its PVC cap and fix the end section by your phillips screw.
1.1 Placing of elements on the Boom
See the picture.
1.2 Assembling of elements to the Boom
String the tuning element of Gamma Match on one element of the radator dipole, insert the elements into
the metal support and fix them by using the screws and key supplied.
2.0 Assembling of Gamma Match
Extract the final tube of Gamma Match to the length L1=485 mm and fix without locking the flat end
$ 12 to the connector by using the supplied nut and washer. Move the tuning element towards the Boom
stringing the end part $ 8 of Gamma Match as far as size L=890 mm. Then fix the tuning element by
means of screw and key. Check once again the sizes L and L1, lock the nut on the flat part of Gamma Match
and mount the PVC protection cap.
3.0 Assembling of bracket to the Boom
See the picture.
PLEASE , PAY AT TENTIO N. THE GREAT LO CKING TO RQUE OF NUT S THAT FI X T HE
BOOM CAN CAUSE DAMAGE TO THIS LAST ONE.
3.1 Installation to the support tube
See the picture.
4.0 Cable conne ction
See the picture.
ID097
1. 0
HI-QUALITY ANTENNAS MADE IN ITALY
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