Sirio Antenne SA 270 SN User manual

Model SA 270 SNSA 270 SN
SA 270 SNSA 270 SN
SA 270 SN
Fiberglass Hi-Gain Dual BandFiberglass Hi-Gain Dual Band
Fiberglass Hi-Gain Dual BandFiberglass Hi-Gain Dual Band
Fiberglass Hi-Gain Dual Band AntennaAntenna
AntennaAntenna
Antenna
Installation ManualInstallation Manual
Installation ManualInstallation Manual
Installation Manual
BCopyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 05/11/1999 - Cod. ID161

MOUNTING INSTRUCTIONSDESCRIPTION
Ground Plane colinear dual-band antenna for base station service working on the radio-amateur
frequency of 2m/70cm. The radial whip is of brass inserted in a conic fiberglass tube for a
perfect protection from the worst climates and the radials are of stainless steel to get the maximun
strength. They are supplied with a solid aluminium bracket for an easy installation on the support
mast.
SPECIFICATIONS
Electrical Data
Type : VHF 1/2 λ; UHF 2 x 5/8 λColinear
Frequency Range : VHF 142-148 MHz; UHF 430-440 MHz
Impedance : 50 Ω
Radiation (H-plane) : 360oOmnidirectional
Radiation (E-plane) : Beamwidth at -3 dB = VHF 68o; UHF 36o
Radiation angle deg. : VHF 0o; UHF 0o
Polarization : Vertical
Gain : VHF 1 dBd - 3.15 dBi; UHF 3.3 dBd - 5.45 dBi
Bandwidth at V.S.W.R. 2:1 : VHF 5.5 MHz; UHF 17.2 MHz
V.S.W.R. at res. freq. : ≤1.2 : 1
Max Power : 200 Watts
Feed System / Position : Transformer DC-Ground / Base
Connection : "N" Female Gold Plated
Mechanical Data
Materials : Brass, Fiberglass, Stainless Steel, Aluminium
Wind Resistance : 200 Km/h
Length (approx.) : 1325 mm
Weight (approx.) : 810 gr
Radial Length (approx) : 170 mm
Mounting Mast : ∅35-54 mm
ID161