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 | Electrical specifications
| Model |
A4 ALT (L) |
A4 ALT (H)
|
| Operating frequency band, MHz |
297-310 |
335-346
|
| VSWR, not more than |
1.5
|
| Gain, dBi |
8 |
9
|
| Sector in vertical plane , -3dB |
24В° |
20В°
|
| Impedance, Ohm |
50
|
| Max. power input, W |
200
|
| Lightning protection |
yes
|
| Adjustable |
no need
|
Mechanical specifications
| Model |
A4 ALT (L) |
A4 ALT (H)
|
| Weight, kg |
not more 5
|
| Height/Length, mm |
4120
|
| Mast diametr, mm |
50-110
|
| Radome |
fiberglass
|
| Rated wind velocity, m/s |
40
|
| Wind loading area, m2 |
0.246
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| Load of side wind 40 m/s, H |
180
|
| Temperature range, В°C |
from -50 to +50
|
| Connector |
N-female, (7/16 DIN-optional)
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Antenna A4 ALT represents collinear construction with four active components, providing perfect circular pattern at high gain (9 dB) and wide operating frequency band.
Radioparent weather-proof radome is made on the basis of fiberglass material. Radome has polished fiberglass coating, which protects from ultraviolet radiation and icing.
Antenna has DC grounding and has no need in additional tuning.
There were designed two antennas for use as transmitting and receiving antennas in MPT 1327 communication systems: A4 ALT(L), with 305 MHz center and A4 ALT(H) with 340 MHz center.
A4 ALT(L, H) E-plane pattern
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VSWR diagram, A4 ALT(L)
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VSWR diagram, A4 ALT(H)
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The information provided on this page is not an official offer.
To verify actual parameters contact the sales department before ordering.
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