Spektrum SPMAR9200 - Manual (Page 16)

Spektrum AR9200 16
EN
Range Testing
Before each flying session, and especially with a new model, it’s
important to perform a range check. All Spektrum aircraft transmitters
incorporate a range testing system, which reduces the output power
allowing a range check.
Range Testing
1. With the model restrained on the ground, stand 30 paces (approx. 90
feet/28 meters) away from the model.
2. Face the model with the transmitter in your normal flying position and
put your transmitter into range test mode. This causes reduced power
output from the transmitter.
3. You should have total control of the model in range test mode at
30 paces (90 feet/28 meters).
4. If control issues exist, contact the appropriate Horizon Product Support
office for assistance. Contact information is listed in the warranty
section.
Advanced Range Testing Using a Flight Log
The Standard Range Testing procedure is recommended for most sport
aircraft. For sophisticated aircraft that contain significant amounts of
conductive materials (e.g. turbine powered jets, some types of scale
aircraft, aircraft with carbon fuselages, etc.), the following advanced range
check will confirm that all 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
remote receiver to be evaluated and to optimize the locations of each
individual remote receiver.
1. Plug a Flight Log (SPM9540) into the Bind/Data port in the AR9200 and
turn on the system (Tx and Rx).
2. Advance the Flight Log until frame losses are displayed by pressing the
button on the Flight Log. (See page 18 for complete instructions).
3. Have a helper hold your aircraft while observing the Flight Log data.
4. Standing 30 paces away from the model, face the model with the
transmitter in your normal flying position and put your transmitter into
range test mode. This causes reduced power output from the transmitter.
5. 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 the data recorded. 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, a successful range check will have less than ten
recorded frame losses. Scrolling the Flight Log through the antenna
fades (A, B, L,) allows you to evaluate the performance of each receiver.