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Modern Military HF- Antennas of Com. Cars

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ANTENTOP- 01- 2004, # 005

Modern Military HF- Antennas of Com. Cars


Magnet antenna on a communication car





Antennas DDRR in military communication


Antennas DDRR are used in military communication of many countries. Figure 4 shows the schematic of antenna DDRR. Say simple the antenna represents a tube bent in shape of letter L. The length of the L




Is little smaller the quarter wave of the high lower operation range of the antenna, but the length L not less the 0,1l at lower operation range of the antenna. Antenna DDRR is tuned to resonance by the variable capacitor C which is driven by an electric motor M. Antenna DDRR, as usual, is made of thick aluminum tube in 20-40 millimeters OD. Figure 4 Schematic of Antenna DDRR of communication car

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