antentopSince2 July

Ham Spirit
Antentop Free E-Magazine
Free Choice

 

 

Free Antentop Amateur Open Book
Antentop Album
Antentop Survey

 

 

 

Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an

Special page devoted to

Field Antenna for FT- 817

Custom Search

 

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/

Page 40

 

 

 

39 40

 

 

QRP Transceivers and PA from Accessible Parts IP for QRP Antentop Book Radio Antenna Engineering Book Antentop Printed and e- magazines
 


 

 

Just for Fun:

Map IP Address
Powered byIP2Location.com

Thanks for your time!

Last Updated:

August 3, 2016 16:24

Antentop Home Page

Free Antentop Open Book