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Tips on using spektrum 2.4ghz – Spektrum SPMAR9010 User Manual

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Antenna fades—represents the loss of a bit of information on that specific

antenna. Typically 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 consecutive frame losses occur. This takes

about one second. If a hold occurs during a flight, it’s important to evaluate the

system, moving the antennas to different locations and or checking to be sure

the transmitter and receivers are all working correctly.
Note: A servo extension can be used to allow the Flight Log to be plugged

in more conveniently. On some models, the Flight Log can be plugged in,

attached and left on the model using double-sided tape. Mounting the Flight

Log conveniently to the side frame is common with helicopters.

ModelMatch

Some Spektrum and JR transmitters offer a patent pending feature called

ModelMatch. ModelMatch prevents the possibility of operating a model using

the wrong model memory, potentially preventing a crash. With ModelMatch

each model memory has its own unique code (GUID) and during the binding

process the code is programmed into the receiver. Later, when the system is

turned on, the receiver will only connect to the transmitter if the corresponding

model memory is programmed on screen.
Note: If at any time you turn on the system and it fails to connect, check to

be sure the correct model memory is selected in the transmitter. Please note

that the DX5e and Aircraft Modules do not have ModelMatch.

Tips on Using Spektrum 2.4GHz

While your DSM equipped 2.4GHz system is intuitive to operate, functioning

nearly identically to 72MHz systems, following are a few common questions

from customers.
Q: Which do I turn on first, the transmitter or the receiver?
A: It doesn’t matter, although it is suggested to turn the transmitter on first.

If the receiver is turned on first, the throttle channel doesn’t put out a pulse

position at this time, preventing the arming of electronic speed controllers,

or in the case of an engine powered aircraft, the throttle servo remains in its

current position. When the transmitter is then turned on, the receiver that was

previously bound to the transmitter scans the band and finds the GUID (Globally

Unique Identifier code) stored during binding. The system then connects and

operates normally. If the transmitter is turned on first, the transmitter begins

transmission, and then when the receiver is turned on, it scans the 2.4GHz

A – Antenna fades on internal antenna A

B – Antenna fades on internal antenna B

L – Antenna fades on the left external antenna

R – Antenna fades on the

right external antenna

F – Frame loss

H – Holds