UHF Collinear Base Antenna 405-440 MHz - AP21799
LONG RANGE
WIDE COVERAGE
HIGH PERFORMANCE
The AP21799 is a collinear base antenna designed to operate from 405 to 440 MHz, ideal for fixed UHF radio communication systems.
Its folded dipole and low main-lobe radiation pattern provide wide signal coverage and excellent performance, especially where reliable communications are required.
Made with an aluminum structure and high-quality coaxial cable, the antenna ensures durability, weather resistance and electrical stability, making it the ideal choice for repeater stations and industrial or urban environments.
UHF Collinear Base Antenna 405-440 MHz – AP21799
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Model
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AP21799
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|---|---|
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Type
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UHF Base Antenna
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|
VSWR
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≤ 1,5:1
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|
Impedance (Ohms)
|
50 Ohms
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|
Maximum Power (Watts)
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350 W
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|
Omnidirectional Gain
|
8,65 dBi
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|
Bidirectional Gain
|
8 dBi
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|
Offset Gain
|
11 dBi
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|
Weight (Grams)
|
3,8 kg
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|
Grounding
|
DC GROUND (DC SHORT-CIRCUIT)
|
|
Half-Power Angle Omnidirectional Vertical
|
19,5
|
|
Half-Power Angle Bidirectional Vertical
|
18,5
|
|
Half-Power Angle Bidirectional Horizontal
|
53,8
|
|
Half-Power Angle Offset Vertical
|
17,8
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Half-Power Angle Offset Horizontal
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195,4
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Omnidirectional Vertical Side Lobe Level
|
-9,0 dB
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|
Bidirectional Vertical Side Lobe Level
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-3,2 dB
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Offset Vertical Side Lobe Level
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-9.7 dB
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Gondola Diameter (mm)
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50,8 mm
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Main Material
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Aluminum
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Element Diameter (mm)
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19,05 mm
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Gondola Length (mm)
|
2000 mm
|
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Wind Exposure Area (m²)
|
0,39 m²
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Survival Wind Speed (km/h)
|
220 km/h
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|
Operational Wind Speed (km/h)
|
100 km/h
|
|
Distance Between Elements (Center to Center)
|
500 mm
|
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