UHF Collinear Base Antenna 440 - 470 MHZ 8 Elements Dipoles Only 1:2 - AP21711
BETTER PERFORMANCE
HIGH QUALITY
EXCELLENT SIGNAL COVERAGE
These are UHF (440 - 470 MHz) base antennas of the collinear type with 8 folded-dipole elements. Built of aluminum and high-quality coaxial cable. They have a low main-lobe-angle radiation pattern, providing excellent signal coverage and repeater station performance. This antenna features a 1:2 power divider operating in the 420 - 470 MHz range.
Dipoles only
UHF Collinear Base Antenna 440 – 470 MHZ 8 Elements Dipoles Only 1:2 – AP21711
|
Model
|
AP21711
|
|---|---|
|
Type
|
BASE ANTENNA
|
|
Frequency
|
440 - 470 MHz
|
|
VSWR
|
≤ 1,5:1
|
|
Impedance (Ohms)
|
50 Ohms
|
|
Maximum Power (Watts)
|
350 W
|
|
Gain
|
14,0 dBi Offset
|
|
Omnidirectional Gain
|
11,0 dBi
|
|
Bidirectional Gain
|
10,0 dBi
|
|
Offset Gain
|
14,0 dBi
|
|
Weight (Grams)
|
14,2 kg
|
|
Grounding
|
DC ground (DC short-circuit)
|
|
Half-Power Angle Omnidirectional Vertical
|
18,4°
|
|
Half-Power Angle Bidirectional Horizontal
|
52,5°
|
|
Half-Power Angle Offset Vertical
|
8,4°
|
|
Omnidirectional Vertical Side Lobe Level
|
-8,2 dB
|
|
Bidirectional Vertical Side Lobe Level
|
-2,7 dB
|
|
Offset Vertical Side Lobe Level
|
-10,1 dB
|
|
Gondola Diameter (mm)
|
50,8 mm
|
|
Element Diameter (mm)
|
19,05 mm
|
|
Gondola Length (mm)
|
4000 mm
|
|
Wind Exposure Area (m²)
|
0,72 m²
|
|
Survival Wind Speed (km/h)
|
220 km/h
|
|
Operational Wind Speed (km/h)
|
110 km/h
|
|
Distance Between Elements (Center to Center)
|
500 mm
|
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