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

Small Sized Helical Antennas

Custom Search

 

ANTENTOP- 01- 2009, # 011

Small Sized Helical Antennas

 

 

 

 

By: I.Kapustin, UA0RW, Yakutsk, USSR

 

Small-Sized Helical Antenna it is wire helix coiled on a dielectric rod. UA0RW used a wood rod boiled in the paraffin. Figure 1 shows the design of the Vertical Small Sized Helical Antenna. Antenna for the 20- meters has rod in OD 2- cm, length of winding is 30 cm, antenna is coiled turn to turn) by enamel wire in 1- mm OD (18- AWG).

 

Figure 1

A. Design of the Vertical Small Sized Helical Antenna

 

 

Credit Line: Radio #1, 1958, pp.:26-27

 

 

 

Figure 1

B. DD of the Vertical Small Sized Helical Antenna

 

 

 

 

Figure 2 shows the design of the Dipole Small Sized Helical Antenna. Antenna for the 20- meters has rod in OD 2- cm, each parts of the dipole has 220 coils of the enamel wire in 1- mm OD (18- AWG). Overall length of the two parts of the antenna is 60- cm.

 

Figure 2

A. Dipole Small Sized Helical Antenna.

 

 

http://www.antentop.org/

Page 55

 

55 56 57

 

 

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 2, 2016 23:00

Antentop Home Page

Free Antentop Open Book