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ANTENTOP- 01- 2015 # 019

Universal Beverage Antenna

 

 

 

Figure 17 Transformer of Beverage Antenna in Closed Plastic Food Box

 

Test of the Beverage Antenna

 

At first I have measured SWR of the Beverage Antenna with help of MFJ-259B and with internal SWR- meter at IC-718. Table 5 shows SWR of the Beverage Antenna measured with help of MFJ-259B. Table 5 shows SWR of the Beverage Antenna measured with help of internal SWR- meter at IC-718. Data for MFJ- 259B a little differ from data obtained with internal SWR- meter at IC-718. It happened because at antenna wire there is some stray RF voltage receiving from different radio stations. The RF voltage add some   errors to the reading SWR by MFJ-259B. In this case data obtained from the internal SWR- meter of IC-718 are close to the truth.

 

My Beverage Antenna has direction to Europe and East Cost of the USA. Antenna works perfect. Low bands 160 and 80- meter come to live. It was very good reception at all HF bands from 160- to 10 meter.

 

Figure 18 Plastic Insert on the Window

 

 

Figure 19 RF Choke near the Window

 

I could receive ham station from Europe and Asia from 160- to 10 meter. Of course, I cannot say that about transmitting operation on 160- 40- meter bands. It is noticeable that some power lost into the termination resistor. However, at good propagation the Beverage Antenna works perfect on transmission at all HF bands from 160- to 10 meter.

 

Table 5

 

Antenna Beverage with transformer made on LDG Balun Core. Load: 4.7-kOm x 11 Resistors  (440 Ohm overall). Length of the 50- Ohm Coaxial Cable to antenna is 50 Feet. Measurement by MFJ- 259

 

Band

160

80

40

30

20

17

15

12

10

Z

75@j8

57@j4

42@j11

43@j19

50@j21

39@j28

24@j35

24@j12

97@j65

SWR

1.5

1.1

1.1

1.5

1.5

1.9

1.9

2.1

2.8

 

Table 6

 

Antenna Beverage with transformer made on LDG Balun Core. Load: 4.7-kOm x 11 Resistors (440 Ohm overall). Length of the 50- Ohm Coaxial Cable to antenna is 50 Feet. Measurement by SWR –meter of ICOM- 718

 

Band

160

80

40

30

20

17

15

12

10

SWR

1.7

1.0

1.0

1.5

1.1

1.8

1.8

2.0

2.9

 

 

 

 

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May 1, 2016 22:11

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