I have tested the 2 Arducopters with ESP-07 WIFI modules using UgCS .
I saw the ESP-07 range testing article and thought for the control/communication range to +150 meter.
but UgCS lost the telemetry donwlink/uplink in about 30m altitude in my testing .
I want to control the copters in 200 meter range.
Please let me know which module (esp-07, esp-32, xbee-zigbee...) I can use for this goal.
I swarm the +20 drones.