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Modified Beverage Antenna

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ANTENTOP- 01- 2016 # 020

Modified Beverage Antenna

 

 

Table 6

 

Beverage Antenna with Transformer 2x5 Rings. Beverage Antenna Loaded to Bridge of 10 Wire Wound Resistors (overall resistance: 440 Ohm). Length of the 50- Ohm Coaxial Cable to antenna is 50. Measurement by MFJ- 259

 

Band

160

80

40

30

20

17

15

12

10

Z

84@j43

60@j14

37@j8

63@j29

37@j6

81@j13

50@j13

49@j12

53@j12

SWR

2.1

1.3

1.4

1.7

1.3

1.3

1.3

1.2

1.3

 

Table 7

 

Beverage Antenna with Transformer 2x5 Rings. Beverage Antenna Loaded to Bridge of 10 Wire Wound Resistors (overall resistance: 440 Ohm). Length of the 50- Ohm Coaxial Cable to antenna is 50. Measurement by IC- 718

 

Band

160

80

40

30

20

17

15

12

10

SWR

1.5

1.0

1.2

1.2

1.1

1.2

1.2

1.0

1.2

 

 

 

RF Transformer with Insulated Windings at the Beverage Antenna. Open Plastic Food Box

 

RF Transformer with Insulated Windings at the Beverage Antenna. Closed Plastic Food Box

 

73! I.G., VA3ZNW

 

A Beverage antenna that can be improvised for military field communications, from a U.S. Army field manual. Rather than being grounded, the resistor is attached to a second lower wire which serves as a counterpoise, an artificial ground for the transmitter. Credit Line: https://en.wikipedia.org/wiki/Beverage_antenna

 

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April 2, 2016 22:50

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