TDA-3 Terrestrial Directional Antenna
Mechanical measurements of mounting flange
USER MANUAL:
The TDA3 is designed to cover the frequency range 170-890 MHz, however TDA3 will also perform with reduced
specifications in the area of 40-170 MHz as well. The high gain of the TDA3 makes it perform well during weak
signal conditions. With high attenuation of the back and sidelobes the TDA3 will secure good reception in areas
with many reflected signals as encountered in harbours.
To get the best performance from the TDA3 the rotor should be controlled from a Navtrack unit. This unit will keep
the TDA3 pointed automatically at a designated transmitter. For further information see Navtrack Technical leaflet
and manual.
TECHNICAL SPECIFICATIONS
Dimensions
Height
Rotating diameter
Width
Gain
40-170 MHz
170-230 MHz
470-890 MHz
Half power beamwidth
170-230 MHz
470-890 MHz
Front to back ratio
170-230 MHz
470-890 MHz
Front to side ratio
170-230 MHz
470-890 MHz
Minimum recomended
rotation torque
Operation temp. range
Weight
Material
Finish
350 mm
1870 mm
990 mm
Unspecified
9 dBi
8 dBi
±30
o
±32
o
28 dB
22 dB
26 dB
23 dB
60Nm
-40 - +70°C
8 kg
Aluminium
Military green (RAL6014)
