Sirio Antenne GP 87-108 LB, Installation Manual

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MOUNTING INSTRUCTIONS
DESCRIPTION
1/4
λ
Ground Plane wide-band antenna for base station service. It is made of aluminium and hi-
quality materials to get the best efficiency and robustness. Its radial whip is earthed to be protected
against the static discharges. GP 87-108 LB is developed for FM radio band and GP 108-136 LB
is particularly recommended for the aereonautic band service.
SPECIFICATIONS
Electrical Data
Type : 1/4
λ
Folded Ground Plane
Frequency Range
GP 87-108 LB : RADIO band: 87-108 MHz at V.S.W.R.
≤
2.5 :1
GP 108-136 LB : VHF AIR. band: Rx 108-136 MHz; Tx 118-136 at V.S.W.R.
≤
2:1
Impedance : 50
Ω
Unbalanced
Radiation (H-plane) : 360
o
Omnidirectional
Radiation (E-plane) : Beamwidth at -3 dB = 78
o
Radiation angle deg. : 0 o
Polarization : Vertical
Gain : 0 dBd - 2.15 dBi
Bandwidth at V.S.W.R. 2:1
GP 108-136 LB : 22 MHz
V.S.W.R. at res. freq. :
≤
1.2 : 1
Max Power : 1000 Watts
Feed System / Position : Direct DC-Ground / Center
Connector
GP 87-108 / 108-136 LB-U : UHF Female
GP 87-108 / 108-136 LB-N : N Female
Mechanical Data
Materials : Anodized Aluminium, Nylon, Stainless Steel
Wind Load / Resistance
GP 87-108 LB : 67 N at 150 Km/h / 160 Km/h
GP 108-136 LB : 56 N at 150 Km/h / 160 Km/h
Wind Surface
GP 87-108 LB : 0.06 m 2
GP 108-136 LB : 0.05 m 2
Height (approx.)
GP 87-108 LB : 1190 mm
GP 108-136 LB : 890 mm
Weight (approx.)
GP 87-108 LB : 1500 gr
GP 108-136 LB : 1310 gr
Mounting Mast :
∅
36-40 mm
ID124
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