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
|
Model
|
AP21799
|
|---|---|
|
Type
|
UHF Base Antenna
|
|
VSWR
|
≤ 1,5:1
|
|
Impedance (Ohms)
|
50 Ohms
|
|
Maximum Power (Watts)
|
350 W
|
|
Omnidirectional Gain
|
8,65 dBi
|
|
Bidirectional Gain
|
8 dBi
|
|
Offset Gain
|
11 dBi
|
|
Weight (Grams)
|
3,8 kg
|
|
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
|
|
Half-Power Angle Offset Horizontal
|
195,4
|
|
Omnidirectional Vertical Side Lobe Level
|
-9,0 dB
|
|
Bidirectional Vertical Side Lobe Level
|
-3,2 dB
|
|
Offset Vertical Side Lobe Level
|
-9.7 dB
|
|
Gondola Diameter (mm)
|
50,8 mm
|
|
Main Material
|
Aluminum
|
|
Element Diameter (mm)
|
19,05 mm
|
|
Gondola Length (mm)
|
2000 mm
|
|
Wind Exposure Area (m²)
|
0,39 m²
|
|
Survival Wind Speed (km/h)
|
220 km/h
|
|
Operational Wind Speed (km/h)
|
100 km/h
|
|
Distance Between Elements (Center to Center)
|
500 mm
|
Compare product 
Download product images Related
products
AP21711
UHF Collinear Base Antenna 440 - 470 MHZ 8 Elements Dipoles Only 1:2 - AP21711
UHF Collinear Base Antenna 440 - 470 MHZ 8 Elements Dipoles Only 1:2 - AP21711
see product
AP20504
UHF Directional YAGI Base Antenna 5 Elements 430 to 470 MHz - AP20504
The UHF Yagi antenna is made of high-quality aluminum and rubber resistant to ozone, weather and chemicals, ensuring exceptional durability. Lightweight and simple to install, it needs no tuning and has an international-standard female N connector. Its versatile mount allows vertical or horizontal installation. The radiating assembly is sealed in UV-protected ABS, ensuring complete sealing, resistance to severe weather, operational reliability and long service life. A high-performance, cost-effective solution.
see product
AP20309
Dipole Set for VHF Collinear Base Antenna with Female UHF Connector - AP20309
Dipoles
see product