Sirio Antenne CX 2m series Installation Manual

CX 2m seriesCX 2m series

CX 2m seriesCX 2m series

CX 2m series

VHF Base Station Antennas 140....176 MHzVHF Base Station Antennas 140....176 MHz

VHF Base Station Antennas 140....176 MHzVHF Base Station Antennas 140....176 MHz

VHF Base Station Antennas 140....176 MHz

Installation ManualInstallation Manual

Installation ManualInstallation Manual

Installation Manual

B Copyright SIRIO antenne - Technical Data are subjected to change - Printed in ITALY - Rev. 02/12/2005 - Cod. ID062

DESCRIPTION

3/4 λ VHF antenna for base station service made of high quality materials to get the best perfor­mance and the maximum efficiency. It is completely manufactured with aluminium tubes and
nylon for its great robustness and it is supplied with a solid steel bracket for an easy and safe
installation. Its Gamma Match feed makes it earthed for a perfect protection against the static
discharges. In the mentioned range of frequencies, adjustments are not required. Simple and
strong it is particurly recommended for a professional use.

SPECIFICATIONS

Electrical Data

Type : 3/4 λ Coax. J-Pole
Frequency Range @ SWR ≤ 1.5 : CX 140 U/N 140 - 144 MHz

: CX 144 U/N 144 - 148 MHz
: CX 148 U/N 148 - 152 MHz
: CX 152 U/N 152 - 156 MHz
: CX 156 U/N 156 - 160 MHz
: CX 160 U/N 160 - 164 MHz
: CX 164 U/N 164 - 168 MHz
: CX 168 U/N 168 - 172 MHz
: CX 172 U/N 172 - 176 MHz

Impedance : 50 Ω Unbalanced
Radiation (H-plane) : 360o Omnidirectional
Radiation (E-plane) : Beamwidth at -3 dB = 68

o

Radiation angle deg. : 0

o

Polarization : Vertical
Gain : 2 dBd - 4.15 dBi
Bandwidth @ SWR 2.0 : CX 140 ≥ 6.9 MHz, CX 144 ≥ 7.2 MHz, CX 148 ≥ 7.5 MHz

: CX 152 ≥ 7.7 MHz, CX 156 ≥ 8.0 MHz, CX 160 ≥ 8.3 MHz
: CX 164 ≥ 8.3 MHz, CX 168 ≥ 8.9 MHz, CX 172 ≥ 9.2 MHz

SWR @ res. freq. : ≤ 1.2
Max Power : 250 Watts
Feed System / Position : Gamma Match / Base
Connector : CX series U: UHF-female

: CX series N: N-female

Mechanical Data

Materials : Nylon, Brass, Steel, Aluminium
Wind Load / Resistance : 51 N at 150 Km/h / 180 Km/h
Wind Surface : 0.04 m

2

Height (approx.) : from 1370 mm to 1660 mm
Weight (approx.) : 750 gr
Mounting Mast : ∅ 35-42 mm

ID062

MOUNTING INSTRUCTIONS

HI-QUALITY ANTENNAS MADE IN ITALY

HARDWARE PARTS LIST

Qty Descriptions

n.2 U-bolts

n.4 M6 flat washer

n.4 M6 lock washer

n.4 M6 hex nut

Right mounting on mast Wrong mounting on mast