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Beverage Antenna. Theoretical Look on Practical Result.

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ANTENTOP- 01- 2016 # 020

Beverage Antenna. Theoretical Look on Practical Result.

 

 

Antenna for first several years was feed through 75- Ohm coaxial cable that was going along the building wall. Then I have removed this cable and have installed a new one (50- Ohm good coaxial cable) inside building in ventilation shaft. Termination load was reworked to 450- Ohm. SWR of the antenna was not more the 1.5: 1 at all bands with 75 and 50- Ohm coaxial cable. You may find on the Figure 41 address of the building. It seems to me still it is possible to find remains of my antennas on the roof using Google Map…

 

Antenna worked great on all HF- Bands from 160 till 10- meter band. 160 and 80 meter bands at the antenna were good to communicate with Ham stations from Europe and Asia.

Figure 44

DD of Beverage Antenna of amateur station UA3ZNW- UZ3ZK- RK3ZK at 160- Meter Band

 

Table 5

 

Data for Beverage Antenna (Figure 41) used at my amateur station UA3ZNW- UZ3ZK- RK3ZK from 1990- to 2002 year

 

Band

160

80

40

30

20

17

15

12

10

 

Z

589+15

502+275

645-308

703-152

437-j11

524-J202

507-99

361+21

435+67

 

SWR

1.3

1.79

1.95

1.68

1.04

1.55

1.27

1.25

1.17

 

Gain

-20.9

-10

-8.7

-4.3

-5.64

-2.5

-1.47

-0.9

0.6

At Vertical degree

43

25

24

25

18

17

14

13

12

 

 

 

Figure 45

DD of Beverage Antenna of amateur station UA3ZNW- UZ3ZK- RK3ZK at 80- Meter Band

 

 

Figure 46

DD of Beverage Antenna of amateur station UA3ZNW- UZ3ZK- RK3ZK at 40- Meter Band

 

North America and Japan propagated good above 40- meter Band.  Table 5 shows the data for the antenna. Maxima gain is given to the radiation angle at where it is. Figure 44 to Figure 52 show DD of the Beverage Antenna at the 160, 80, 40, 30, 20, 17, 15, 12 and 10- meter Bands in the vertical plane. Feedline with matching transformer is on the left side and the termination load is on the right side of the figures.

As you can see from Figure 44 to Figure 52 the Beverage Antenna has not so bad DD.

 

If you have possibility to install such antenna- do not hesitate. It is easy to install, easy to match, invisible and low noise antenna.

73!  de VA3ZNW

 

 

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September 4, 2016 0:15

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