Sirio Antenne 2108801.00 Manuel utilisateur

SD-FM DIPOLE 87-194 MHzSD-FM DIPOLE 87-194 MHz

SD-FM DIPOLE 87-194 MHz

VHF Base Station Antenna 87...194 MHzVHF Base Station Antenna 87...194 MHz

VHF Base Station Antenna 87...194 MHz

TECHNICAL DATA

Electrical Data

Type Dipole

Frequency range 87 - 194 MHz tunable by cutting

Impedance 50 Ω

Radiation (H-plane) beamwidth @ -3 dB=240°(vertical polariz. only)

Radiation (E-plane) beamwidth @ -3 dB = 80°(vertical polariz. only)

Front to back ratio ≥4 dB (vertical polarization only)

Polarization Linear Vertical or Horizontal

Gain 1.85 dBd - 4 dBi (vertical polarization only)

Bandwidth @ SWR 1.5 ≥14.5 @ 87 MHz (vertical polarization only)

SWR @ freq. res. ≤1.2 @ 87 MHz (vertical polarization only)

Max Power (CW) @ 30°C 300 Watts

Connector UHF-female

Mechanical Data

Materials Aluminum, Zamak, Zinc plated,Chromed Brass

Wind load / resistance 99 N @ 150 Km/h / 160Km/h

Wind surface 0.08 m2

Boom/elements diameter 33mm/16mm

Dimensions (approx.) 1030 x 1600 mm

Weigth (approx.) 1850 gr

Turning radius (approx.) 990 mm

Operating temperature -40°C to +80°C

Mounting Mast ∅35-52 mm

DESCRIPTION

Dipole base station antenna working on 87-194 MHz by cutting.

Optimized for vertical polarization it can be also placed in horizontal

polarization. The elements are fixed to the boom by a strong die-cast

metal support to get the maximum strength. All connections are

waterproof and it is supplied with UHF female connector. To inprove

the antenna gain please install it in stacked or bayed array.

MOUNTING INSTRUCTIONS

SD bracket parts list

Q.ty Description

1 SD/SY Steel bracket

2 M8x200 U-bolt

4 M8 Hexagonal nut

4 M8 Grower washer

4 M8 Flat Washer

4 M6x125 U-bolt

8 M6 Hexagonal nut

8 M6 Grower washer

8 M6 Flat washer

Materials Zinc Plated Steel

Weight 865g

Re-order code: SA088

HI-QUALITY ANTENNAS MADE IN ITALY

BCopyright SIRIO antenne - Technical data are subjected to change - Printed in Italy - Rev. 21/11/2011 - Cod. ID285

Mounting Bracket

HI-QUALITY ANTENNAS MADE IN ITALY ID285

MOUNTING INSTRUCTIONS

3mm Hex. key

Hex.

socket set

screws

Element Mounting

ATTENTION!

Place the Gamma

Match on upper side for

vertical polarization

Direction for tuning

1) Choose your working frequency.

2) Cut both tubes Aat L1 (PVC cap must not be mounted).

3) Assemble both tubes Aand place element Bat L2.

4) Place element Cof the gamma match at L3.

- working frequency 87...123 MHz: proceed at point 5).

- working frequency 123...194 MHz: cut element C

85mm from the side of PVC cap

5) You can proceed by mounting your antenna on the mast in

vertical or horizontal position.

- Vertical polarization: place your antenna at distance L4

from the mast to get the best performance

- Horizontal polarization: distance L4 is not required

Note: It is recommended to use the above table just as a gui-

de. For fine-tuning please use an SWR-Meter.

85mm

Freq. L1 L2 L3 L4

(MHz) (mm) (mm) (mm) (mm)

87 770 249 19 860

93 726 242 30 810

98 690 233 42 771

103 664 226 51 742

108 634 220 58 716

113 615 214 65 689

118 582 210 73 650

123 550 205 81 610

123 550 179 102 610

130 510 171 113 576

138 470 163 125 541

146 438 156 135 508

154 413 146 146 483

162 390 136 157 460

170 370 127 168 440

178 350 119 177 420

186 333 111 186 403

194 315 102 196 385

Element

support

Cable connection

Gamma Match

Mounting

See “Direction for tuning”

point 4

Mast

Table des matières

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