Sirio Antenne SA 270 LN Installation Manual

Model

SA 270 LNSA 270 LN

SA 270 LNSA 270 LN

SA 270 LN

Fiberglass Hi-Gain Dual Band Fiberglass Hi-Gain Dual Band

Fiberglass Hi-Gain Dual Band Fiberglass Hi-Gain Dual Band

Fiberglass Hi-Gain Dual Band

AntennaAntenna

AntennaAntenna

Antenna

Installation ManualInstallation Manual

Installation ManualInstallation Manual

Installation Manual

B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 05/11/1999 - Cod. ID162

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 2 x 5/8 λ; UHF 5 x 5/8 λ
Frequency Range : VHF 143-147 MHz; UHF 430-440 MHz
Impedance : 50 Ω
Radiation (H-plane) : 360o Omnidirectional
Radiation (E-plane) : Beamwidth at -3 dB = VHF 39o; UHF 22

o

Radiation angle deg. : VHF 0o; UHF -4

o

Polarization : Vertical
Gain : VHF 3.2 dBd - 5.45 dBi; UHF 5.8 dBd - 7.95 dBi
Bandwidth at V.S.W.R. 2:1 : VHF 3.4 MHz; UHF 18.6 MHz
V.S.W.R. at res. freq. : VHF ≤ 1.3 : 1; UHF ≤ 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 : 160 Km/h
Length (approx.) : 2790 mm
Weight (approx.) : 1250 gr
Radial Length (approx) : 495 mm
Mounting Mast : ∅ 35-54 mm

ID162