Sirio Antenne SIGNAL KEEPER 27 User manual

Model SIGNAL KEEPER 27SIGNAL KEEPER 27
SIGNAL KEEPER 27SIGNAL KEEPER 27
SIGNAL KEEPER 27
Ground Plane Antenna 27 MHzGround Plane Antenna 27 MHz
Ground Plane Antenna 27 MHzGround Plane Antenna 27 MHz
Ground Plane Antenna 27 MHz
Installation ManualInstallation Manual
Installation ManualInstallation Manual
Installation Manual
BCopyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 02/10/1998 - Cod. ID077

DESCRIPTION
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 : 1/4 λ Base Loaded Ground Plane
Frequency Range : 26-28 MHz
Impedance : 50 ΩUnbalanced
Radiation : Omnidirectional
Polarization : Vertical
Gain : 0 dBd - 2.14 dBi
Bandwidth at V.S.W.R. 2:1 : 850 KHz
V.S.W.R. at f. res. : ≤1.3 : 1
Max Power : 100 Watts
Feed System / Position : Direct / Center
Connection : UHF Female
Mechanical Data
Materials : Aluminium, Chromed Brass, Nylon, Stainless Steel
Wind Load / Resistance : 36 N at 150 Km/h / 130 Km/h
Wind Surface : 0.03 m2
Height (approx.) : 2400 mm
Weight (approx.) : 635 gr
Radial Length (approx) : 600 mm
Mounting Mast : ∅35-40 mm
MOUNTING INSTRUCTIONS
ID077
L = 1870 mm; use this lenght as a guide and a SWR-meter for fine tuning.