Advanced Range Testing Using A Flight Log; Advanced Range Testing The X9303 2.4 - JR X9303 2.4 Instruction And Programming Manual

Advanced Range Testing Using a Flight Log

While the above Standard Range Testing procedure is
recommended for most sport aircraft, for sophisticated
aircraft that contain significant amounts of conductive/
reflective materials (i.e. turbine-powered jets, some types
of scale aircraft, aircraft with carbon fuselages, etc.) the
following advanced range check will confirm that all
internal and remote receivers are operating optimally and
that the installation (position of the receivers) is optimized
for the specific aircraft. This Advanced Range Check
allows the RF performance of each individual internal
and remote receiver to be evaluated and to optimize the
locations of each individual remote receiver.

Advanced Range Testing the X9303 2.4

1. Plug a flight log (optional) into the data port in the JR
R921 receiver and turn on the system (transmitter and
receiver).
2. Advance the Flight Log until F- frame losses are
displayed, by pressing the button on the flight log.
3. Have a helper hold your aircraft while he observes the
Flight Log data.
4. Standing 30 paces away from the model, face the
model with the transmitter in your normal flying
position and depress and hold the bind button on the
back of the transmitter. This causes reduced power
output from the transmitter.
G-22
5. Have your helper position the model in various
orientations (nose up, nose down, nose toward the
transmitter, nose away from the transmitter, etc.)
while your helper is watching the Flight Log, noting
any correlation between the aircraft's orientation and
Frame Losses. Do this for 1 minute. The timer on
the X9303 can be used here. For giant-scale aircraft,
it's recommended that the airplane be tipped up on
its nose and rotated 360 degrees for one minute,
then record the data. Next place the airplane on its
wheels and do a second test, rotating the aircraft in all
directions for one minute.
6. After one minute, release the bind button. A successful
range check will have recorded zero frame losses.
Scrolling the Flight Log through the Antenna fades
(A, B, L, R) allow you to evaluate the performance
of each receiver. Antenna fades should be relatively
uniform. If a specific antenna is experiencing a high
degree of fades, then that antenna should be moved
to a different location.
7. A successful Advanced test will yield the following:
H- 0 holds
F- 0 frame losses
A, B, R, L- Antenna fades will typically be less than 100.
It's important to compare the relative antenna fades and
if a particular receiver has a significantly higher antenna
fades (2 to 3X), then the test should be redone, and if
the same results occur, move the offending receiver to a
different location.