Page 25 - LWEXEX SCADA TELEMETRY

B Y 7 0 -12G W

9-element Yagi Antenna for the 400-470 MHz Band with 12 dBd Gain

This is an 9-element Yagi antenna with 12 dBd �ain. The entire balun unit and feeder cable inlet are completely BASE STATION ANTENNAS
sealed in a polyvinyl chloride (�VC) screw cap ensuring permanent waterproof connections. The antenna is
terminated with FME (female) connector. Radiating elements, supporting booms and adjoining metal castings are
constructed in high-quality-aluminum alloys to prevent corrosion. A mast clamp is provided for mounting on 27-40
mm diameter mast tube.

specifications
Type YAGI
ELECTRICAL
Frequency Range 400-470 MHz
Band width 40 MHz
SWR < 1.5
Gain 12 dBd (14.15 dBi)
Impedance 50 Ω
Max Power 50 W
Polarization Vertical; Horizontal
Front to back ratio 20 dB
Antistatic protection N/A
Connector All types
MECHANICAL
Length 1.35 m
Weight 1.0 kg
Mounting 27-40 mm mast tube
Material aluminum
Wind Load 150 km/h

ORDERING DESIGNATIONS
Type Frequency
BC70-12G/l 400-440 MHz
BC-12G/h 430-470 MHz

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

+30° +60° +90° +60° +30° +150° +120° 0° 30° 60° 2.0

SWR 1.5
+12 +9 +6 +3 0 0 +3 +6 +9 +12 +12 +9 +6 +3 0 0 +3 +6 +9 +12
0° 0° 270° 90° 1.0
400 BC70-12G/l 440
430 BC70-12G/h 470
-30° -60° -90° -60° -30° 240° 210° 180° 150° 120° freq. MHz