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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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August 7, 2016 20:16

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