In the video, I mention that I will make two antennas, in fact one. Unfortunately the material for the first antenna is chosen incorrectly and that does not mislead you I do not show it.
As promised links to the calculation of antennas:
Antenna Kharchenko: http://3gaerial.biz/onlajnraschety/...
Antenna from video (biloop): http://3gaerial.biz/onlajnraschety/...