CQ India - VHF Collinear Super J Antenna: Calculator

Click to enlarge

 

  Single Copper tube bent in this shape- >
Use 6 Nos Elbow's at the bents
for neat construction








Five Turns , 4 Inch Dia, RG58u Coax at the bottom of feed point.

Matches SWR 1:1

  
 
  Inches Copper Tube 1/2 Inch Dia.           
Inches Inches  X  2 pieces    
Inches Inches
MHzEnter Frequency of Operation

 
 

Inches

    
       
  Feed Point Appox.
Inches From Bottom 		   
       
  Antenna made using Brass rod :

Would appreciate your feedback , and results of construction to enhance this page.

    
  De VU2UKR