Thread: from lrl to dowsing
View Single Post
  #7  
Old 04-21-2018, 08:25 AM
abdou2014 abdou2014 is offline
Guru
  
Join Date: Mar 2014
Posts: 1,050
Default
I think there is a transmitter coil parallel to the earth connected with the smartphone, and the telescopic antenna is for the reception .
Reply With Quote