ANTENTOP- 01- 2006, # 008

Field Antenna for FT- 817

An angular PL- socket is attached underneath of the plastic tube. A screw for jointing an old TV telescope antenna (1100 mm length, 11 sections) is attached at upper parts of the plastic tube.

Contact clips were melted in the plastic form. A small piece of wire does shortening the clips depend on used band. The coil was covered by a thermocontractable plastic tube.

Band, meters

40

30

20

17

15

12

11

10

Number of used sections of the TV- antenna

9,5

9

9

11

9

11

11

8

Shortened clips

3-6

1-2

1-3

1-4

1-4

1-5

1-5

1-5

Counterpoise length, meters

7,8

4,8

3,0

3,0

2,5

2,5

2,5

2,5

May be you will get another data for you antenna because it may depend on to place and neighboring environment. When I at first time was checking the antenna at 2.5 watts I have got 59 from UA9 (at 20 meters) and 57 from Ukraine at 40 meters.

Stuff for the antenna costs only $ 4.

73! UU9JEW

Ohh, I forgot, I used a Chinese metal tape-line in 10 meters long as a counterpoise for my antenna.

Credit Line: <http://www.qrz.ru/schemes/contribute/antenns/uu9jew.shtml>

http://www.antentop.org/

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