Page 23 - LWEXEX SCADA TELEMETRY

B Y 7 0 -7G W

5-element Yagi Antenna for the 380-470 MHz Band with 7 dBd Gain

This is a 5-element Yagi antenna with 7 dBd �ain. This Yagi incorporates baluns optimized for wide bandwidth and BASE STATION ANTENNAS
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.

tions ELECTRICAL YAGI
Type

Frequency Range
380-470 MHz
Band width
SWR 35 MHz
< 1.5
specific Impedance 50 Ω
7 dBd (9.15 dBi)
Gain
Max Power
150 W
Polarization
Vertical; Horizontal
Front to back ratio
16 dB
Antistatic protection
shows a DC-short)
N (female)
Connector DC-grounded (Connector
MECHANICAL
Length 1.02 m
Weight 3.4 kg
Mounting 27-50 mm mast tube
Material epoxy-coated aluminum
Wind Load 150 km/h

ORDERING DESIGNATIONS
Type Frequency
BY70-7G/l 380-415 MHz
BY70-7G/m 410-445 MHz
BY70-7G/h 435-470 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
+7 +5 +3 -0 -3 -3 0 +3 +5 +7 +7 +5 +3 0 -3 -3 0 +3 +5 +7
0° 0° 270° 90° 1.0
380 BY70-7G/l 415
410 BY70-7G/m 445
435 BY70-7G/h 470
-30° -60° -90° -60° -30° 240° 210° 180° 150° 120° freq. MHz