Spektrum DX8 - Manual (Page 42)

42 SPEKTRUM DX8 • RADIO INSTRUCTION MANUAL
USING A FLIGhT LOG—OPTIONAL
The Flight Log (optional) is compatible with the AR8000 receiver. The Flight
Log displays overall RF link performance as well as the individual internal and
external receiver link data. It also displays receiver voltage.
Using the Flight Log
After a flight and before turning off the receiver or transmitter, plug the Flight Log
into the Data port on the AR8000 receiver. The screen will automatically display
voltage i.e. 6v2= 6.2 volts. Note: When the voltage reaches 4.8 volts or less, the
screen will flash indicating low voltage.
Press the button to display the following information:
A - Antenna fades on internal antenna A
B - Antenna fades on internal antenna B (not used on the AR8000)
L - Antenna fades on the left external antenna
R - Antenna fades on the right external antenna (not used on the AR8000)
F - Frame loss
H - Holds
Antenna fades—represents the loss of a bit of information on that specific
antenna. It’s normal to have as many as 50 to 100 antenna fades during a flight.
If any single antenna experiences over 500 fades in a single flight, the antenna
should be repositioned in the aircraft to optimize the RF link.
Frame loss—represents simultaneous antenna fades on all attached receivers.
If the RF link is performing optimally, frame losses per flight should be less than 20.
A hold- occurs when 45 continuous frame losses occur. This takes about one
second. If a hold occurs during a flight, it’s important to re-evaluate the system,
moving the antennas to different locations and/or checking to be sure the
transmitter and receivers are all working correctly.
Note: Use a servo extension to allow the Flight Log to be plugged in without
having to remove the aircraft’s hatch or canopy. On some models, the Flight
Log can be plugged in, attached and left on the model using double-sided
tape. It is common with helicopters to mount the Flight Log to the side frame.
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