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 | Electrical specifications
| Model |
A5-4m
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| Operating frequency band, MHz |
70-71
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| VSWR, not more than |
1.5
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| Gain, dBi |
5.6
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| Polarization |
V
|
| Sector in vertical plane , -3dB |
36В°
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| Impedance, Ohm |
50
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| Max. power input, W |
200
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| Lightning protection |
Yes
|
| Adjustable |
Yes
|
Mechanical specifications
| Model |
A5-4m
|
| Weight, kg |
5.2
|
| Length, mm |
6000
|
| Construction material |
Aluminium alloy
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| Mast diametr, mm |
50-70
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| Rated wind velocity, m/s |
30
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| Temperature range, В°C |
from -50 to +50
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| Connector |
N-female
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Such antenna still did not see 4 meters band! Owing to collinear scheme with central feed and to two floors radials the antenna has a maximum of radiation along a ground surface and the increased gain 5,8 dBi.
This antenna well use for repeaters building, beacons and DX QSO.
VSWR diagram A5-4m
E-plane pattern A5-4m
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