I-22
Advanced Range Testing
Plug a Flight Log (optional, JRPA145) into the data port in the
receiver and turn on the system (Tx and Rx).
Advance the Flight Log until F- frame losses are displayed by
pressing the button on the flight log.
Have a helper hold your aircraft while he observes the Flight
Log data.
Standing 30 paces away from the model and helper, 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.
Have your helper position the model in various orientations
(nose up, nose down, nose toward the Tx, nose away from
the Tx, etc.) while your helper watches the Flight Log noting
any correlation between the aircraft’s orientation and Frame
Losses. Do this for 1 minute. The timer on the transmitter 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.
After one minute release the bind button. A successful range
check will have less that ten recorded frame losses. Scrolling
the Flight Log through the Antenna fades (A, B, L, R) allows
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.
A successful Advanced test will yield the following:
• H- 0 holds
• F- Less than 10 frame losses
A, B, R, L- Frame losses will typically be less than 100.
It’s important to compare the relative frame losses and if a
particular receiver has a significantly higher frame loss value
(2X to 3X) then the test should be redone; if the same results
occur, move the offending receiver to a different location.
Summary of Contents for JR DSM 12X
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