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400-490 MHz
Lokomotive antenna LA-UHF. Models LA-433, LA-446, LA-CDMA

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400-490 MHz  Lokomotive antenna LA-UHF. Models LA-433, LA-446, LA-CDMA
Electrical specifications
Model LA-UHF LA-433 LA-446 LA-CDMA
Operating frequency band, MHz 400-490 428-438 440-452 453-467
VSWR, not more than 1.5 1.5 1.5 1.5
Gain OFFSET, dBi 2.15 2.15 2.15 2.15
Sector in vertical plane , -3dB 65° 65° 65° 65°
Impedance, Ohm 50 50 50 50
Max. power input, W 300 300 300 300
Mechanical specifications
Model LA-UHF LA-433 LA-446 LA-CDMA
Weight, kg not more 1
Height/Length, mm 80
Construction material Aluminium alloy
Radome ABS
Standard mounting horizontal metal plane
Rated wind velocity, m/s 55
Wind loading area, m2 0,008
Rated wind velocity with 0.5" icing, m/s 42
Temperature range, °C from -50 to +50
Connector N-female

Locomotive antennas a new series of models "LA" are purposed to be exploited in the railroad communications systems within the range 405-470 MHz. The equipment of TETRA standard that works in this range as well as the data transfer system may include these mobile antennas.
The "LA" models have low-profile construction, their height does not exceed 80 mm and they are protected by a strong case made of ABS-plastic. This ensures the improved aerodynamic characteristics and additional electrical safety of this antenna. The construction is grounded by direct current.

VSWR diagram, "LA" antennas

"LA" H-plane pattern

"LA" E-plane pattern