Model SIGNAL KEEPER 27 SIGNAL KEEPER 27 Installation Manual

Model SIGNAL KEEPER 27
Ground Plane Antenna 27 MHz
Installation Manual
B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 02/10/1998 - Cod. ID077
DESCRIPTION
MOUNTING INSTRUCTIONS
1/4 λ Base Loaded Ground Plane antenna for base station service working on 27 MHz. The
whip is made of non-corrosive aluminium and assembled on a strong aluminium base which
allows an easy and safe installation assuring very good performances. The short loaded radials
are made of fiber glass to reduce the dimensions.
SPECIFICATIONS
Electrical Data
Type
Frequency Range
Impedance
Radiation
Polarization
Gain
Bandwidth at V.S.W.R. 2:1
V.S.W.R. at f. res.
Max Power
Feed System / Position
Connection
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1/4 λ Base Loaded Ground Plane
26-28 MHz
50 Ω Unbalanced
Omnidirectional
Vertical
0 dBd - 2.14 dBi
850 KHz
≤ 1.3 : 1
100 Watts
Direct / Center
UHF Female
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Aluminium, Chromed Brass, Nylon, Stainless Steel
36 N at 150 Km/h / 130 Km/h
0.03 m2
2400 mm
635 gr
600 mm
∅ 35-40 mm
Mechanical Data
Materials
Wind Load / Resistance
Wind Surface
Height (approx.)
Weight (approx.)
Radial Length (approx)
Mounting Mast
L = 1870 mm; use this lenght as a guide and a SWR-meter for fine tuning.
ID077