www.frsky-rc.com
23/04/2012
2.2 Range check
A pre-flight range check should be done before each flying session. Reflections from nearby metal fences, concrete
building or trees can cause loss of signal both during range check and during the flight.
The following steps are to be followed to perform the range check of the model before the flight:
1) Place the model at least 60cm (two feet) above non-metal contaminated ground (e.g. on a wooden bench).
2) The receiver antennas should be separated in the model, and do not touch the ground.
3) Place the antenna of the transmitter in a vertical position.
4) Turn on the transmitter and the receiver, press the F/S button of the transmitter module for 4 seconds to enter
range check mode, the RED LED of the transmitter module will be off, GREEN LED will flash rapidly. The effective
distance will be decreased to 1/30 of full range.
5) Walk away from the model while simultaneously operating the controls on the transmitter, confirming that all
controls operate normally to a distance of at least 30 meters (~30 yds).
6) Press the F/S button of the transmitter module for 1S-4S to exit range check mode, RED LED will be back on,
indicating normal operation is back.
2.3 Failsafe setting
Failsafe is a useful feature in which all controls move to a preset position whenever the control signal is lost for a
period of time. V8FR-II supports failsafe function for all channels.
Follow the steps below to set failsafe positions for each channel:
1) Bind the receiver first and turn on both the transmitter and the receiver;
2) Move the controls to the desired failsafe position for all channels;
3) Press briefly the F/S button on the receiver (less than 1 second). The GREEN LED of the receiver will flash twice,
indicating the failsafe position has been set in the receiver.
To disable the failsafe function, just re-bind the receiver.
