[TowerTalk] Choke on feed point of dipole

[Jim Brown]

On 1/13/2026 11:09 AM, David Gilbert wrote:
> but the maximum gain is almost identical.

How did you model ground loss? What radial system? Any vertical with a 
current maxima near the ground will need a return, and current in that 
return has some loss.

Once you've done all that correctly, save the vertical pattern of one, 
then compute the vertical pattern for the other, and add the saved plot 
to it. The half-wave antenna will have greater field strength at low 
angles, and depending on your soil, may have less ground loss.

http://k9yc.com/AntennaPlanning.pdf

73, Jim K9YC