Model SA 270 LN SA 270 LN Installation Manual
Contents
1. Installation Manual Copyright SIRIO antenne Technical Data are subjected to change Printed in ITALY Rev 05 11 1999 Cod ID162 DESCRIPTION MOUNTING INSTRUCTIONS 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 m SPECIFICATIONS Electrical Data Type VHF 2 x 5 8 UHF 5 x 5 8 Frequency Range VHF 143 147 MHz UHF 430 440 MHz Impedance 50 Q y Radiation H plane 360 Omnidirectional 80 mm J Radiation E plane Beamwidth at 3 dB VHF 39 UHF 22 Radiation angle deg VHF 0 UHF 4 Polarization Vertical Gain VHF 3 2 dBd 5 45 dBi UHF 5 8 dBd 7 95 dBi Bandwidth at VS WR 2 1 VHF 3 4 MHz UHF 18 6 MHz VS VWAR 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 Brass2. Fiberglass Stainless Steel Aluminium Wind Resistance 160 Km h Length approx 2790 mm a o pann Weight approx i 1250 gr o Radial Length approx 495 mm Mounting Mast 35 54 mm T Hh s if TYPICAL S W R RESPONSE TYPICAL S W R RESPONSE S W R Model SA 270 LN File F 04 003 S W R Model SA 270 LN File F 04 003 3 0 nu 3 0 2 8 2 8 2 6 2 6 24 24 2 2 2 2 2 0 2 0 1 8 1 8 1 6 1 6 1 4 1 4 1 2 1 2 1 0 1 0 Ja 143 145 147 423 435 447 MHz MHz ID162
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