JJRC H31 Transmitter Antenna Mode Long Range Test FPV Flight
Tutorial: How to increase range of your JJRC H31 quadcopter
This is modified JJRC H31 transmitter with 5db 2.4 Ghz WiFi antenna.
How to modify the antenna in your JJRC H31 remote control?
First of all remove a resistor soldered to a circuit board then solder antenna wire in the same locations as pictured above.
Soldering pads for the FPV Camera in the picture below.
Watch video below!
This wasn’t max flight range test, just optimal. The flight distance was 200 meters / 656 feet according to Google Maps.