Model GP 3-F Installation Manual
Contents
1. TYPICAL TUNING DIAGRAMS 1249 1228 1207 1186 1165 1144 1123 1102 1081 1060 1039 NOTE e t is recommended to use the curves as a guide and fine tune using an SWR Meter Copyright SIRIO antenne Technical Data are subjected to change Printed in ITALY Rev 01 07 1998 Cod ID238 NL LL L N LLLLLLLLLLLLLLLLELI BCNENERENENEBENSERETS OO NA HH Model GP 3 F VHF Base Station Antenna 135 175 MHz installation Manual DESCRIPTION 5 8 Ground Plane base station antenna for land and marine service It works on the frequency range of 135 175 MHz by using the cutting diagram enclosed The matching coil is DC feeded for a perfect protection from the static discharges GP 3 F is made of fiber glass and assembled on a very strong base of chromed die cast metal to get the maximum robustness and the best performance Tuning is easy by following the attached directions SPECIFICATIONS Electrical Data Type Frequency Range Impedance Radiation H plane Radiation E plane Radiation angle deg Polarization Gain Bandwidth at V S W R 2 1 V S WR at res freq Max Power Feed System Position Connection Mechanical Data Materials Wind Load Resistance Wind Surface Height approx Weight approx Mounting Mast TYPICAL S W R RESPONSE S W R Model GP 3 F 3 0 2g 5 8 Ground Plane 135 175 MHz tunable by cutting 50 Q Un2. balanced 360 Omnidirectional Beamwidth at 3 dB 69 257 Vertical 1 5 dBd 3 65 dBi 4 8 MHz at 135 MHz 1 2 1at 135 MHz 200 Watts Transformer DC Ground Base UHF Female Glass Fibre Nylon Chromed Brass 23Nat 150 Km h 150 Km h 0 02 m 1335 mm 585 gr 25 30 mm TYPICAL RADIATION PATTERN in E plane at 145 MHz File E 02 029 Scale linear Hle F 02 029 2 6 2 4 2 2 2 0 1 8 1 6 1 4 1 2 1 05 132 135 ID238 138 f MHz MOUNTING INSTRUCTIONS
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