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ANTENTOP- 02- 2010, # 014

Grounded and Underground Antennas

 

 

Central conductor is connected to “antenna” terminal. Screen of the coaxial cable is connected to the “ground” terminal of the transmitter.

 

Figure 147 shows Diagram of Directivity in the horizon plane of the Cable Underground Antenna.

 

Table 1 Old Russian Coaxial Cables RK1,  RK3 and RK6

 

Type

 

Zw, Ohm

Diameter 1, mm

Diameter 2, mm

Diameter 3, mm

Diameter 4, mm

 

RK1

 

77

1x0.68

4.6

5.2

7.3

 

RK3

 

68

1x1.37

9.0

9.6

13.0

 

RK6

 

52

7x0.85

9.2

9.8

12.4

 

 

 

Figure 146 Cable Underground Antenna

 

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