Wltoys V666-Altitude testing-with my Diy Tx Rx 2.4ghz Antenna
Using RG58 for DIY Omnidirectional Biquad Antenna for Tx ( transmitter ) + double antenna for Rx (receiver) + using 5pcs batteries 1.2V 2500MAH for transmitter + 7.4v 1500mah for quadcopter.