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BASE STATION ANTENNAS  3-element Yagi Antenna for the 380-470 MHz Band with 5 dBd Gain  B Y 7 0 - 5G W







            This is a 3-element Yagi antenna with 5 dBd �ain. This Yagi incorporates baluns optimized for wide bandwidth and
            accurate matching. The entire balun unit is completely sealed in a polyamide (�A) screw cap ensuring permanent
            waterproof connections. The antenna is terminated with N (female) connector. Radiating elements�� supporting
            booms  and  adjoining  metal  castings  are  constructed  in  high-quality-aluminum  alloys  to  prevent  corrosion.  All
            metal parts are DC-grounded. A mast clamp is provided for mounting on 27-50 mm diameter mast tube.





                                                                    specifications
                                                                       Type                YAGI
                                                                      ELECTRICAL
                                                                       Frequency Range     380-470 MHz
                                                                       Band width          40 MHz
                                                                       SWR                 < 1.5
                                                                       Gain                5 dBd (7.15 dBi)
                                                                       Impedance           50 Ω
                                                                       Max Power           150 W
                                                                       Polarization        Vertical; Horizontal
                                                                       Front to back ratio  16 dB
                                                                       Antistatic protection  DC-grounded (Connector
                                                                                           shows a DC-short)
                                                                       Connector           N (female)
                                                                      MECHANICAL
                                                                       Length              0.72 m
                                                                       Weight              3.3 kg
                                                                       Mounting            27-50 mm mast tube
                                                                       Material            epoxy-coated aluminum
                                                                       Wind Load           150 km/h

                                                                      ORDERING DESIGNATIONS
                                                                       Type                Frequency
                                                                       BY70-5G/l           380-420 MHz
                                                                       BY70-5G/m           405-445 MHz
                                                                       BY70-5G/h           430-470 MHz



            RADIATION PATTERN (E-PLANE)        RADIATION PATTERN (H-PLANE)         TYPICAL SWR CURVE

              +30°   +60°  +90°  +60°  +30°      +300°  +330°  0°   30°    60°       2.0

                                                                                    SWR  1.5
              +6  +3  0  -3 -6  -6 -3  0  +3  +6  +6  +3  0  -3 -6  -6 -3  0  +3  +6
             0°                            0°   270°                          90°    1.0
                                                                                       380        BY70-5G/l     420
                                                                                       405        BY70-5G/m     445
                                                                                       430        BY70-5G/h     470
               -30°  -60°  -90°  -60°   -30°      240°  210°  180°  150°   120°                        freq. MHz
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