Sirio Antenne 827 User manual

Installation ManualInstallation Manual
Installation ManualInstallation Manual
Installation Manual
BCopyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 02/07/2003 - Cod. ID082
TUNING INSTRUCTION
SIRIO 827SIRIO 827
SIRIO 827SIRIO 827
SIRIO 827
• •
• •
• SIRIO 827 doesn't need any
tuning because its large band.
However a fine modifications is
available by acting on the final
whip.
26 MHz
28 MHz
OPTIONAL ANTI-NOISE NYLON RING
Optional noise nylon ring to reduce the wind noise of the radials.
Code 2511011.00
Final mounting view

DESCRIPTION
The most modern technology and the most advanced instruments have been used for the
realization of SIRIO 827, the new base antenna with remarkable characteristics. It is made of
Silicium Magnesium Aluminium tubes of big dimensions drawn and cemented on the surface to
get the maximum strenght of the main whip. The coil, made of enamelled copper wire of big
section, has been specially planned in order to bear high powers. It adopts the exclusive system
C.A.C.S. (Coil Auto-Cooling System) which allows the auto-cooling by a finned support that keeps
the coil hanging up allowing the air circulation
SPECIFICATIONS
Electrical Data
Type : 5/8 λGround Plane
Frequency Range : 26-29 MHz
Impedance : 50 ΩUnbalanced
Radiation (H-plane) : 360°Omnidirectional
Polarization : Vertical
Gain : 1.5 dBd, 3.65 dBi
Bandwidth at V.S.W.R. 2:1 : 2000 KHz
V.S.W.R. at res. freq. : ≤1.1 : 1
Max Power : 1000 Watts
Feed system / position : Transformer DC-ground / base
Connector type : UHF-female
Mechanical Data
Materials : Aluminium, Steel, Copper, Nylon
Height (approx.) : 6700 mm
Weight (approx.) : 6000 gr
Radial lenght : 1400 mm
Mounting Mast : ∅35-39 mm
ID082
MOUNTING INSTRUCTIONS
• •
• •
• Fig. D::
::
:Assemble the fixing rings as
shown in the picture and insert the an-
tenna on the mounting mast. Put the
PVC caps on the radials ∅8 x 1400 mm
and fix them with the supplied screws
and key.
• •
• •
• Fig. A::
::
:Insert the tube ∅8 x 700 mm
in the top-part of the telescopic whip; let
it out for 430 mm, lock it by using the
supplied screw and key and assemble
the PVC cap on the whip.
• •
• •
• Fig. B::
::
:Unstring the 4 telescopic tubes
and fix them by using the 6 screws
supplied.
• •
• •
• Fig. C::
::
:Fix the telescopic whip to the
tube ∅37 mm by means of the first
tightening clip ∅32-35 mm and proceed
to fix the tube ∅37 mm to the tube ∅
44 mm with the second clip ∅ 40-43
mm.